The 2013 Sustainability Report

RYE BROOK, N.Y., September 11, 2014 – Xylem Inc. (NYSE: XYL), a leading global water technology company dedicated to solving the world’s most challenging water issues, announced today that it has been named to the Dow Jones Sustainability Index for North America for the third consecutive year in recognition of its ongoing sustainability initiatives. Xylem is one of 140 companies recognized on this year’s North American Index.

“As a leader in water, sustainability helps drive the core of our business. Being named to the DJSI Index for North America for a third year in a row is a meaningful acknowledgment of the work we’ve done to advance sustainable business practices and solutions,” said Patrick Decker, president and CEO of Xylem. “We are still at the beginning of our journey and we are dedicated to making continuous progress as we build world-class products and sustainable solutions to protect and preserve the environment and to strengthen the communities where we work around the world.”

The Dow Jones Sustainability Index for North America tracks the performance of the top 20% of the 600 largest Canadian and United States companies in the S&P Global Broad Market Index that lead the field in terms of sustainability. The result of the Corporate Sustainability Assessment by RobecoSAM, an investment boutique focused exclusively on sustainability investing, provides an in-depth analysis of economic, environmental and social criteria, such as corporate governance, water-related risks and stakeholder relations, with a special focus on industry-specific risks and opportunities.

Launched in 1999, the DJSI enable investors to integrate sustainability considerations into their portfolios while providing an effective engagement platform for encouraging companies to adopt sustainable best practices.

About Xylem
Xylem (XYL) is a leading global water technology provider, enabling customers to transport, treat, test and efficiently use water in public utility, residential and commercial building services, industrial and agricultural settings. The company does business in more than 150 countries through a number of market-leading product brands, and its people bring broad applications expertise with a strong focus on finding local solutions to the world’s most challenging water and wastewater problems. Xylem is headquartered in Rye Brook, New York, with 2013 revenues of $3.8 billion and more than 12,500 employees worldwide. Xylem was named to the Dow Jones Sustainability World Index for the last two years for advancing sustainable business practices and solutions worldwide.

The name Xylem is derived from classical Greek and is the tissue that transports water in plants, highlighting the engineering efficiency of our water-centric business by linking it with the best water transportation of all — that which occurs in nature. For more information, please visit us at www.xylem.com.
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Contacts:

Media
Jennifer Jacob +1 (914) 323-5745
jennifer.jacob@xyleminc.com

Investors
Phil De Sousa +1 (914) 323-5930
phil.desousa@xyleminc.com

- See more at: http://www.xyleminc.com/en-us/news-and-events/press-release-archive/Pages/Xylem-Inc.-named-to-Dow-Jones-Sustainability-Index-for-North-America-for-the-third-consecutive-year-.asp

Morton Grove, Ill. – Sept. 17, 2014 – Xylem Inc., a leading global water technology company focused on addressing the world’s most challenging water issues, was recently recognized as the winner of Consulting-Specifying Engineer’s 2014 Product of the Year award for its Bell & Gossett brand Series e-1510 single stage end suction centrifugal pump. The product earned the coveted Most Valuable Product of the year title by receiving more votes than any product in any category.

Consulting-Specifying Engineer’s Product of the Year is the premier award for new products in the HVAC, fire/life safety, electrical and plumbing systems engineering markets. The annual reader’s choice award program was created to provide readers of the publication information on top new products in their fields.

“The e-1510 is built on the best-in-class 1510 pump to provide the highest overall efficiency in the end-suction market for HVAC and plumbing applications,” said Mark Handzel, Vice President, Product Regulatory Affairs, and Director, HVAC Commercial Buildings, Bell & Gossett, a Xylem Brand.“The value of this product is apparent to Consulting-Specifying Engineer readers – a key audience for us – and we’re pleased they recognize the outstanding benefits of the e-1510 and the superior Efficiency Island it offers.”

The e-1510’s benefits include:

• Largest efficiency sweet spot/Efficiency Island in the industry achieved through advanced computational fluid dynamics technology.
• Stainless steel impellers for corrosion resistance from varying water quality.
• True back pullout design for low-cost service and maintenance without moving motors
• Backward dimensional interchangeability for easy retrofitting.
• Variety of configuration options for product customization.
• Compliance with lead-free regulations.
• Part of Bell & Gossett’s ESP Plus selection software.

To learn more about the e-1510, visit http://bellgossett.com/pumps-circulators/end-suction-pumps/e-1510/. More technical detail on the e-1510’s Efficiency Island can be found here http://bellgossett.com/white-papers/.

About Xylem

Xylem (XYL) is a leading global water technology provider, enabling customers to transport, treat, test and efficiently use water in public utility, residential and commercial building services, industrial and agricultural settings. The company does business in more than 150 countries through a number of market-leading product brands, and its people bring broad applications expertise with a strong focus on finding local solutions to the world’s most challenging water and wastewater problems. Xylem is headquartered in Rye Brook, N.Y., with 2013 revenues of $3.8 billion and more than 12,500 employees worldwide. Xylem was named to the Dow Jones Sustainability World Index for the last two years for advancing sustainable business practices and solutions worldwide.

The name Xylem is derived from classical Greek and is the tissue that transports water in plants, highlighting the engineering efficiency of our water-centric business by linking it with the best water transportation of all — that which occurs in nature. For more information, please visit us at www.xyleminc.com.

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Morton Grove, Ill. — Sept. 30, 2014 — Rule and Jabsco brand product lines, including the launch of the LoPro Series Bilge Pump, will be among the featured products from Xylem Inc. at the 2014 International Boatbuilders Exhibition and Conference (IBEX), Sept. 30-Oct. 2 in Tampa, Florida.

Experts from Xylem, a leading global water technology company focused on addressing the world’s most challenging water issues, will be available during the show at booth #1423 to discuss customer success stories and product highlights from the two Xylem brands.

“As the boating industry evolves, our customers are looking for products that are moving forward with the industry,” said Steve Tilders, Global Director of Sales, Marine & RV, Xylem. “Our Rule and Jabsco product lines serve a wide range of marine vessels, from pleasure craft and recreational boats to commercial fishing boats, giving our customers the solutions they’re seeking.”

Xylem’s Jabsco brand is a worldwide leading manufacturer of products for the marine market, including water systems, engine cooling pumps, searchlights and waste systems. Jabsco also offers industrial pumps for hygienic applications, fluid transfer in chemical processing, laboratory, paint processing, plating and construction.

Xylem’s Rule brand, a leader in submersible bilge and utility pumps for the recreational and small commercial boat markets, will highlight the launch of the LoPro Series Bilge Pump. With 180 degree rotation capabilities, multiple ports and horizontal or vertical mounting options, the LoPro offers maximum customizability for any boat footprint.

Other featured Rule and Jabsco products at IBEX 2014 include:

• Submersible bilge pumps and switches – The industry’s leading brand features a full range of automatic and standard bilge pumps and switches
• Livewell / Baitwell systems – Quality live bait tank / livewell tank aeration systems are crucial for keeping bait fish healthy.
• Water pressure and washdown pumps – The weapon of choice for fish box scaling and anchor chain cleaning, these products are ideal for the harshest marine environments. Water pressure pumps provide fresh water to all points on board.
• Toilets and waste systems – Electric toilets feature dual function pumps to eliminate need for hand pumps and dry bowl valves.
• Flexible impeller pumps – Crafted from marine-quality bronze and stainless steel for ruggedness and reliability, these pumps tolerate abrasive environments.
• Ventilation blowers – Radial flow blowers are built with a tough reinforced plastic housing and rotor for maximum corrosion resistance. Radial design and a one-piece balanced rotor provide efficient and quiet operation. These blowers provide efficient engine ventilation by removing fumes from the engine compartments of gasoline-powered boats prior to start-up.
• Searchlights and floodlights – This range of products include value-priced plastic range and higher-end chrome models.

IBEX brings together nearly 5,000 professionals from more than 50 countries to discuss the latest trends and products in the marine industry.

To learn more about Xylem Rule and Jabsco brand products, visit booth #1423 at IBEX 2014, or visit the website: http://www.xylemflowcontrol.com.

For training and troubleshooting videos, please visit the Jabsco Tech website here: http://jabscotech.com/.

About Xylem

Xylem (XYL) is a leading global water technology provider, enabling customers to transport, treat, test and efficiently use water in public utility, residential and commercial building services, industrial and agricultural settings. The company does business in more than 150 countries through a number of market-leading product brands, and its people bring broad applications expertise with a strong focus on finding local solutions to the world’s most challenging water and wastewater problems. Xylem is headquartered in Rye Brook, N.Y., with 2013 revenues of $3.8 billion and more than 12,500 employees worldwide. Xylem was named to the Dow Jones Sustainability World Index for the last two years for advancing sustainable business practices and solutions worldwide.

The name Xylem is derived from classical Greek and is the tissue that transports water in plants, highlighting the engineering efficiency of our water-centric business by linking it with the best water transportation of all – that which occurs in nature. For more information, please visit us at www.xyleminc.com.

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Morton Grove, Ill. – Sept. 30, 2014 – Versatile, powerful and designed for small areas, Xylem’s Rule brand LoPro Series Bilge Pump made its debut today at the 2014 International BoatBuilders’ Exhibition and Conference (IBEX) in Tampa, Florida. Xylem, a leading global water technology company focused on addressing the world’s most challenging water issues, developed the pump to provide the boating community with a highly customizable solution.

The Rule LoPro Series’ innovative design – at just 2-1/4 inches high – makes it ideal for minimal spaces. With the introduction of a manual (LP900D) and an automatic version (LP900S), Rule continues to lead the industry in innovation. The body of both the LP900D and LP900S versions rotates up to 180 degrees for easy installation. Additionally, the pump features multiple ports and horizontal or vertical mounting options, ensuring flexibility to fit differentiated environments.

Two automated modes in the LP900S model enable boat owners to customize the pump for their specific needs. The first operation mode engages the pump when too high or too low water levels trip a sensor; the second mode checks the water level automatically by briefly turning on the pump every 2.5 minutes. If water is detected, the pump stays on until the water is has been removed. Rule also offers the LP900D without the electronic sensor for manual operation.

“Boat owners and architects are creating more personalized water craft. The highly adaptable design of the Rule LoPro makes it appealing to the recreational marine industry because it enables them to tailor the bilge pump to their distinct needs,” said Steve Tilders, Global Director of Sales, Marine & RV, Xylem. “Our solutions improve water management for vessels of varying footprints, and this new bilge pump is optimal for a variety of craft. A dependable bilge pump is essential to protecting their investments.”

Features and benefits of the LoPro include:

• Multiple modes of operation – The LP900S features two automated modes of operation – high or low water sensing mode, or electronic automatic mode – that monitor water levels and safeguard the boat from potential flooding.
• Fully rotating discharge body – The entire pump body can swivel up to 180 degrees, making it easy to install.
• Threaded discharge nozzle – Multiple ports increase compatibility across vessels of varying size.
• Backflow prevention – New tricuspid check valves help prevent backflow, which keeps the boat dry and protects it from sinking.
• Horizontal or vertical mounting – Both the LP900D and the LP900S feature several mounting options to accommodate any boat’s design and making it perfect for compact areas.

To learn more about Rule LoPro, stop by Xylem’s booth #1423 at IBEX 2014, or visit: http://www.xylemflowcontrol.com/marine-and-rv/bilge/rule-electric-submersible-pumps/lp900-rule-lopro-series.htm.

About Xylem

Xylem (XYL) is a leading global water technology provider, enabling customers to transport, treat, test and efficiently use water in public utility, residential and commercial building services, industrial and agricultural settings. The company does business in more than 150 countries through a number of market-leading product brands, and its people bring broad applications expertise with a strong focus on finding local solutions to the world’s most challenging water and wastewater problems. Xylem is headquartered in Rye Brook, N.Y., with 2013 revenues of $3.8 billion and more than 12,500 employees worldwide. Xylem was named to the Dow Jones Sustainability World Index for the last two years for advancing sustainable business practices and solutions worldwide.

The name Xylem is derived from classical Greek and is the tissue that transports water in plants, highlighting the engineering efficiency of our water-centric business by linking it with the best water transportation of all — that which occurs in nature. For more information, please visit us at www.xyleminc.com.

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Legislation to provide small communities across the nation with critical information on the use of water wells and water well systems to deliver high quality, affordable drinking water.

WASHINGTON, Sept. 23, 2014 /PRNewswire-USNewswire/ — On September 18, 2014, Congressman Marlin Stutzman (R-IN) introduced the ”Water Supply Cost Savings Act,” or ”Savings Act,” legislation to provide small communities across the nation with critical information on the use of water wells and water well systems to deliver high quality, affordable drinking water.

The Savings Act (HR 5659) was greeted with enthusiastic support from the water supply industry, including the Water Systems Council, the Water Quality Association and the National Groundwater Association.

“We are grateful to Congressman Stutzman for his leadership in championing the first piece of national legislation to provide local community decision makers with a cost effective option to utilize smaller domestic well water systems to meet community drinking water needs,” said Bo Andersson, Water Systems Council president. “Local water supply projects completed by WSC’s Water Well Trust have clearly demonstrated that these smaller systems can save the nation millions of dollars in infrastructure investment.”

The Savings Act is aimed at reducing the costs to federal, state, and local governments in providing quality drinking water to millions of Americans living in rural and isolated communities by promoting cost-effective community well water systems.

To assist small communities with their consideration of drinking water technology needs, the Savings Act establishes a Drinking Water Technology Clearinghouse where the Administrator of the Environmental Protection Agency and the Secretary of Agriculture will disseminate information on cost-effective, innovative, and alternative drinking water delivery systems, including systems that are supported by wells.

“The Savings Act is a simple, common sense bill that can save taxpayer dollars and, importantly, help rural communities gain access to much needed high quality drinking water,” Stutzman said. “I am thrilled to have the support of the Water Systems Council, the Water Quality Association, and the National Groundwater Association to advance this important legislation.”
WASHINGTON, Sept. 23, 2014 /PRNewswire-USNewswire/ — On September 18, 2014, Congressman Marlin Stutzman (R-IN) introduced the ”Water Supply Cost Savings Act,” or ”Savings Act,” legislation to provide small communities across the nation with critical information on the use of water wells and water well systems to deliver high quality, affordable drinking water.

There are 52,000 community water systems in the United States, of which 41,801 are small community water systems (3,300 or fewer people). EPA’s most recent Drinking Water Needs Survey placed the shortfall in drinking water infrastructure funding for small communities at $64.5 billion. The Savings Act will encourage these small communities to consider less expensive drinking water systems supplied by wells that could save taxpayers billions of dollars in infrastructure costs.

“Delivering high quality drinking water at a lower cost is a win-win for small communities,” said Margaret Martens, Water Systems Council executive director. “The local projects we have already completed through the Water Well Trust have realized savings of as much as 94% over traditional long-pipe, centralized drinking water systems, proving that water wells are a reliable, cost-effective way for budget-challenged communities to provide access to safe drinking water for their residents.”

Diann Scott, a member of the WSC board noted that, “Small communities often have difficulty financing the construction and maintenance of traditional long-pipe drinking water system as the cost per resident can be prohibitively expensive. The Savings Act will help rural America and other small community systems cost-effectively meet critical water needs and public health challenges while supporting domestic manufacturing and jobs.”

Media Contact:
Margaret Martens
Executive Director
Water Systems Council
202-625-4387

email

Morton Grove, Ill. – (Oct. 7, 2014) – Maximizing solar energy has just gotten easier with upgrades to Xylem’s patent-pending XyDial iPhone app, designed to help users efficiently locate, configure, adjust and optimize a solar panel in real-time, anywhere on the globe. Developed by Xylem Inc., a leading global water technology company, the patent-pending XyDial app can now recognize obstructions in a full 360-degree view from the panel, and display detailed energy savings reports.

“Solar panel owners and operators are looking for highly efficient methods to harness as much of the sun’s power as possible,” said Keith Teichmann, director of innovative networks and marketing, Xylem. “As solar panels are increasingly used to generate energy for various applications, including integration into water systems for activities such as irrigation, the XyDial app will give users an intuitive tool that takes solar optimization to the next level.”

Obstructions to solar insolation reduce solar panel efficiency, but XyDial’s enhanced spatial Shadow Function recognizes shade areas in a 360-degree view from the panel, enabling users to precisely position their panels for maximum output. Users simply draw over any shadows within 360 degrees with their finger and register them in each panel’s configuration.

The app’s updated power output maps provide a more detailed visual of energy savings from solar power. The monthly power view remains as the default, but there is now the ability to zoom all the way to an hourly view. This reporting flexibility provides users with a deeper understanding of how much power their photovoltaic panels are producing and when the PV panels are receiving solar insolation. The new app also offers the same zooming capability for monetary electrical grid savings graphing in addition to power output.

XyDial does not require an Internet connection to function. Real-time adjustments can be made anywhere in the world by using the iPhone’s features, including GPS, digital compass, gyroscope and the forward-facing camera.

XyDial has been upgraded visually to agree with Apple’s new design direction and iOS 8 and is compatible with the recently released iPhone 6 and iPhone 6 Plus. It was developed in collaboration with the Apple Hall of Fame and Application Design Award winner Vito Technology (creators of StarWalk and SolarWalk apps for Apple).

The app is free for download from the iTunes Store, and is available in English and German.

XyDial is one of several mobile applications released by Xylem, including the Goulds Water Technology Catalog (or at Google Play), the Bell & Gossett Mobile Catalog (or at Google Play), and the Bell & Gossett ESP-System Syzer (or at Google Play) – a proprietary HVAC tool that helps with piping system design.

About Xylem
Xylem (XYL) is a leading global water technology provider, enabling customers to transport, treat, test and efficiently use water in public utility, residential and commercial building services, industrial and agricultural settings. The company does business in more than 150 countries through a number of market-leading product brands, and its people bring broad applications expertise with a strong focus on finding local solutions to the world’s most challenging water and wastewater problems. Xylem is headquartered in Rye Brook, N.Y., with 2013 revenues of $3.8 billion and more than 12,500 employees worldwide. Xylem was named to the Dow Jones Sustainability World Index for the last two years for advancing sustainable business practices and solutions worldwide.

The name Xylem is derived from classical Greek and is the tissue that transports water in plants, highlighting the engineering efficiency of our water-centric business by linking it with the best water transportation of all — that which occurs in nature. For more information, please visit us at www.xyleminc.com.

*Apple, iPhone, iPod touch, and iTunes are trademarks of Apple Inc., registered in the U.S. and other countries. App Store is a service mark of Apple Inc.

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Volume 1 / Issue 3 / November 2014

When an existing steam boiler fails, the adventure of installing a new one begins. Here are a few keys to successful replacement.

Asking the Right Questions
Step one is to find out why the old boiler failed:
• Was it an 80 year boiler on its last leg?
• Were the controls installed properly?
• Were the controls maintained as the manufacturer recommended?
• Was the boiler bringing in large amounts of fresh water?
• Is your customer familiar with a steam system’s nuances, or a new homeowner who doesn’t know that steam boilers require “hands on” attention?

Answer these questions before you install the new boiler. Otherwise, boiler failure will happen again and the homeowner’s steam system will quickly become your steam system!

Understanding Hydronic vs. Steam Heating 

The new boiler’s capacity to produce steam must match the existing system’s capacity to condense steam—a fact that trips up many contractors. Remember, steam systems provide heat much differently than hot water systems.
– In a hydronic system, the boilers, pipes and radiation are filled with water. The boiler heats the water, which circulates out to the radiation, gives off heat to the room, and drops a few degrees in temperature. The water then returns to the boiler to be heated and recirculated.

Typical steam system with dry return

– In a steam system, all the pipes and radiators are filled with air. The system’s only water is in the boiler and in any piping below the boiler water line. The boiler adds latent heat—a measurement of energy not sensed by a thermometer—to the water until it becomes steam and heads out into the system. Here’s the thing: This steam wants to change back into water. When it does, it gives back the latent heat that turned the water into steam—right where the hot steam enters cold pipes and radiators.

Sizing the Replacement Boiler
To heat every radiator in the house, the boiler has to produce enough steam to fill the piping network and all the radiators. Thus, successful replacement requires that the new steam boiler is sized according to the amount of radiation connected to the piping system. Walk through the house with a clipboard, add up the EDR ratings of every radiator, and you’ll know the exact size boiler required for this home.

Why not just read the old boiler’s rating plate? You’re putting your reputation in the hands of the installer who came before you. Many homeowners believe that buying a new steam boiler gives them a new steam system. If they continue to have problems caused by the incorrect size of the old boiler, they won’t be happy. And they’ll blame you.

Avoiding Oversizing
An oversized replacement boiler forces too much steam into the piping system, creating velocity problems, spitting steam vents, water hammering, and short cycling. The homeowner doesn’t know anything about boiler sizing. All he knows is that the boiler keeps cycling on and off, the radiator vents are spitting water all over the walls and floor, and the house sounds like it might explode.

Take the time to properly size the replacement steam boiler, and you can keep your customer calm and happy—and complete the job successfully.

Volume 1 / Issue 3 / November 2014

#10 They think they’re working on just part of the system.

You’re never working on just part of a steam system. When you touch one part, you affect all the other parts. Think big! Think System. You may be there only to replace the boiler, but when that new boiler won’t heat the building, you’ll get the call.

#9 They remove the insulation.

Steam is a gas that quickly condenses into a liquid when it hits cold pipes. If a pipe is insulated, the steam is five times less likely to condense. Whoa! If you want the steam to reach those far-off radiators, you have
to insulate those pipes.

#8 They don’t figure the time it takes to clean the system.

Steam systems are wide open to the atmosphere and constantly corroding. That corrosion works its way down into the boiler, making the water line bounce and surge—leading to water-level problems and equipment failure. If you’re installing a new boiler, include time to clean the system in your price—or you’ll end up doing it for free.

#7 They underestimate the importance of the vacuum pump.

That vacuum pump let the original engineer undersize every pipe, valve and fitting in the building; thanks to a pressure-to-vacuum differential across the system, the steam moved quickly from the boiler to the radiators. Without the vacuum pump, though, you’re forced to run higher-than-normal pressure. That leads to uneven heating, high fuel bills, water hammer and equipment failure. If there’s a vacuum pump and it’s broken, we can help. Domestic Pump makes a fine line of vacuum pumps, and our rep will be glad to accompany you to that problem job.

#6 They line-size steam traps and PRVs.

Why do contractors do this? Because it’s easy! The trouble is, it doesn’t work very well. Valves should be the same size as the lines they’re piped into. They will always be smaller. If you line-size a trap or a PRV, it will just barely open during operation. That leads to “wire-drawing” (erosion of the metal seat) and premature death. If you’re not sure of the size, call your McDonnell & Miller/Hoffman Specialty rep.

#5 They oversize the replacement boiler.

Oversized boilers short-cycle, creating high fuel bills, equipment failure and angry customers. The only correct way to size a replacement steam boiler is to measure all the radiation in the building. The boiler’s ability to make steam has to match the system’s ability to condense steam. Don’t size a new boiler based on the size of the old one. That boiler may date from the days of coal firing and could well be twice as large as it should be. Why leave all that money on the job? Take the time to measure the radiators.

#4 They don’t think like air.

Where there is air, steam will not go. You should always walk through the system and imagine yourself as air. Could you get out of those pipes? If you can’t get out, neither can the air. Trapped air leads to uneven heating and high fuel bills. Air is one of the simplest problems to diagnose. Ask your counterman to show you the complete line of Hoffman Specialty air vents. Each box holds a solution.

#3 They install one-pipe steam vents on two-pipe steam radiators.

When thermostatic radiator traps fail, the steam moves into and pressurizes the return lines. That traps air in the radiators, keeping them from heating. If you install an air vent on that two-pipe radiator, the air will get out, and the radiator will heat, for sure! But since there’s steam in the return lines (because of the failed traps), the condensate won’t get back to the boiler until the end of the cycle. That leads to severe water hammer, and water level problems at the boiler. If you want your steam traps to last longer, ask your counterman about Hoffman Specialty Bear Traps. We build them for the long run.

#2 They try to use just one steam trap for the whole system.

Steam traps belong on every two-pipe system that has dry returns, and on any system that has a condensate or boiler feed pump. The traps keep the steam from entering the return lines, going a long way toward balancing the steam distribution. If you try to get by with just one big trap at the inlet to the condensate or boiler feed pump, you’ll have a building that never heats well.

 #1 They get frustrated and raise the steam pressure.

Most buildings will heat beautifully with no more than 2 psi steam pressure—based on pipe size, not building size. The correct steam pressure for the job was set on the day the original engineer sized the piping system. If you have to run the pressure higher than 2 psi you probably have trapped air or failed steam traps.

Bonus!
They don’t call their McDonnell & Miller/Hoffman Specialty rep!

Who knows more about steam heating than the representatives for McDonnell & Miller/Hoffman Specialty? We’ve been in the business since the days this stuff was thought up. Hey, we helped think it up! If you’re having a problem, do the smart thing and call us first.

Volume 1 / Issue 3 / November 2014

Domestic® Pump often gets requests to clarify piping diagram and start-up instructions, especially the need for each pump to have a union, a gate valve, check valve and plug cock, as shown below. Here’s the reasoning behind our recommendations.

• The union is the point where the condensate equipment and the rest of the system meet.
• The check valve prevents problems like these:
  • Condensate flowing backward from the boiler or from vertical piping when the pump is not operating.
  • One duplex-unit pump pumping into the discharge of the other pump, causing recirculation problems.
• The gate valve, or isolation valve, lets you service the unit in isolation from the rest of the system.
• The plug cock, or other suitable balancing valve, balances the pump.

Elementary piping diagram

Contractors often want to know exactly what a “plug cock” is and why it needs to be installed. We also get questions about seals failing (usually due to cavitation).

The plug cock is simply some sort of balancing valve. The term originally referred to a square-headed steam cock or other balancing valve typical of steam systems from the 1940s and 50s. Today, you can use any good-quality balancing valve with a low Cv, such as the Bell & Gossett Circuit Setter.

In The Lost Art of Steam Heating, here’s what author Dan Holohan says about condensate unit piping and plug cocks –

Put a gate or ball valve after the check valve so you’ll be able to service the pump or the check valve without having to drain the boiler. Then, install a lubricated plug cock or other suitable balancing valve after the service valve. The plug cock pulls in the reins on the pump and keeps the check valve from chattering. You need it because manufactures size most condensate pumps to move more water at 20 psi. That’s because a low pressure boiler can operate up to 15 psig. If the boiler operates at pressure less than 50 psig, you have to pump into it with a pressure equal to the operating pressure, plus 5 psig. So if your boiler is running at 2 psig, your pump should discharge at 7 psig. If the boiler operates at its maximum 15 psig pressure, you’ll need a 20 psig pump to get in. That’s why they make them that way.

The problem, however, is if we let the pump do what’s it’s capable of doing, the pumped flow of return condensate will be much too fast. It will have the check valve chattering like a machine gun. The lubricated plug clock adds resistance to the flow and stops the chattering. If you had a heating boiler operating at 2 psig, you’d throttle the plug cock until you induced about 13 psig of pressure drop in the line (you need 7 psig to enter the boiler at the proper rate. The plug cock eats up the rest). You don’t necessarily need a pressure gauge to do this; just listen to the check valve. When it stops chattering, you’re probably at the right point.

You can’t throttle with a gate valve because when closed part way, the gate hangs perpendicular to the flow of water. It will rattle back and forth and eventually shake itself off its stem. Besides, you shouldn’t use your service valve to throttle because someone will invariably close it to service the pump and then reopen it to its full open position. That sets your check valve to chattering again.¹

That’s sound theory. Let’s look at the practical side. People unfamiliar with pumps tend to think impeller vanes scoop the water into the pump discharge and into the system. Actually, the impeller or pump wheel “slaps” the water, throwing it to the edge of the pump casing and out the discharge. That creates a low pressure zone in the impeller’s eye, or inlet of the impeller. Because high pressure always flows to low pressure, more water rushes into the impeller eye to fill the void.

In steam systems, we also need to consider net positive suction head (NPSH), defined as the net positive pressure that causes a liquid to flow through the suction piping to a pump and enter the impeller’s eye. NPSH is simply the minimum suction required to prevent flashing of the fluid in the pump.

There are two values for NPSH.
• NPSHR (R for required), a function of the pump design, is how much NPSH is required to keep the fluid from flashing to steam inside the pump.
• NPSHA (A for available), is what’s available for the pump to use.

In vented condensate systems, the NPSHA value is a function of several things:
• Positive static head, or water column, of condensate above the pump’s impeller eye
• Vapor pressure of the fluid
• Minus the piping friction loss of the water column piping into the pump.

Remember that vapor pressure is also related to temperature. Typically, the vapor pressure of condensate decreases as the temperature goes up.

Totaling the positives and negatives reveals available NPSH, which must always exceed required NPSH. If it doesn’t, the water in the eye of the impeller will flash back to vapor. This is called cavitation and can damage the pump’s internal components.

Domestic Pump and Hoffman Specialty have always been conservative in our pump sizing. The typical pump provided on your product has pumping potential far greater than your requirements. Let’s look at a typical 609 PF pump curve.

A pump with a 3-11/16” impeller might typically be selected for the duty point of 15 gpm at 20 psi (i.e. 46 feet of head). Left uncontrolled, or as Dan Holohan puts it, “not reined in,” that pump has the potential to pump at a capacity of 32 gallons per minute but will generate only 31 or 32 feet of head, or 13 psi. If you’re trying to get water into a 15 psi boiler and have only 13 psi coming out of the pump, nothing moves. Until the boiler pushes out more steam and the volume in the boiler and its related pressure drops, no water can get to where you want it, into the boiler. You need to control the pump.

Put another way, picture a backyard garden hose. With no nozzle in place, the hose will pump 10 gallons a minute, but only your ankles get wet—not your lawn. Installing a nozzle essentially gives you a control valve (i.e. the plug cock or balancing valve). Tightening the nozzle sends less water through the hose but increases the pressure; you can now spray water across the yard to even the farthest corners of your garden.

In the same way, the plug cock or balancing valve increases pressure and decreases flow. The pump moves back on its operational curve, preventing deadheading against the boiler’s internal pressure or a pressure drop in the pipe between the pump and next piece of equipment. Equally important, the pump moves back on its NPSHR curve, eliminating the potential for cavitation.

Look again at the pump curve and NPSH table above. For a pump rated 15 gpm at 46 ft TDH, the NPSHR is approximately 1 ft. required. But if the condensate is at 212ºF, then by the chart there is 0 NPSHA. NPSHA must be greater than NPSHR to stop the water in the impeller from flashing to vapor. So, if your pump remains uncontrolled and the condensate is too hot, then using same 609 PF at 210ºF (which has 1.4 NPSHA) and allowing it to run out on its curve to 26 gpm (which is 2ft. NPSHR) will result in pump cavitation. Reining in the pump with the plug cock or balancing valve not only increases the potential discharge pressure, but also moves the pump back to a point on the NPSH curve where the available is greater than the required. Now water can reach the boiler or the next piece of equipment in your system, and your condensate pump performs as it should.

NPSH table for water at sea level* and atmospherically vented for supply tank

Centrifugal pump Series C35 3500 RPM performance curve

So the next time you’re questioned about the system piping, startups and the need for a plug cock in the system, you’ll know that the answer is yes, your customer needs it and now you know why.

From the instruction manual section about putting the unit into service:
Throttle plug cock in discharge line until pressure at pump (while pump is discharging) approaches pump rated pressure. Tighten plug nut to secure adjustment.

From the troubleshooting section of the instruction manual:
Condensate Pump Is Noisy
1. The pump is working against a lower pressure than designed for. While pump is discharging, adjust plug cock in discharge line until pressure at pump approaches pump rated pressure.

¹ The Lost Art of Steam Heating, Dan Holohan, 1992, pp. 171-2

Morton Grove, Ill. – Nov. 3, 2014 – Xylem Inc. is offering a special promotion on its Bell & Gossett ecocirc XL large wet rotor circulator pumps for HVAC and plumbing applications in commercial building applications. Purchase two ecocirc XL products from a participating Bell & Gossett wholesaler between Nov. 1 and Dec. 31, 2014, to receive a $50 Visa reward card.

The ecocirc XL features state-of-the art hydraulics, advanced motor design and intelligent controls, for greater performance across a broad range of head and flow requirements. The pump’s electronically commutated permanent magnet motor enables pump operations to match demand while also delivering superior energy efficiency and cost savings. Among other energy and time-saving features, an easy-to-use digital interface provides the user with real-time pump performance information, significantly reducing system downtime for maximum operational efficiency.

“Facility managers, building owners and maintenance personnel are looking for advanced system solutions that are easy to use and drive energy savings,” said Mark Handzel, Vice President, Product Regulatory Affairs and Director, HVAC & Commercial Buildings Business Unit, Xylem. “The highly efficient ecocirc XL enables our customers to effectively maximize system performance without sacrificing operational excellence or sustainability goals. This promotion is designed to highlight what the product brings to the industry.”

To claim the reward card, customers need to purchase two qualifying pumps from a Bell & Gossett wholesaler. To submit qualifying purchases, or for more information, visit ecocirc-xl.bellgossett.com. All rebate requests must be received by midnight Dec. 31, 2014.

About Xylem

Xylem (XYL) is a leading global water technology provider, enabling customers to transport, treat, test and efficiently use water in public utility, residential and commercial building services, industrial and agricultural settings. The company does business in more than 150 countries through a number of market-leading product brands, and its people bring broad applications expertise with a strong focus on finding local solutions to the world’s most challenging water and wastewater problems. Xylem is headquartered in Rye Brook, N.Y., with 2013 revenues of $3.8 billion and more than 12,500 employees worldwide. Xylem was named to the Dow Jones Sustainability World Index for the last two years for advancing sustainable business practices and solutions worldwide.

The name Xylem is derived from classical Greek and is the tissue that transports water in plants, highlighting the engineering efficiency of our water-centric business by linking it with the best water transportation of all — that which occurs in nature. For more information, please visit us at www.xyleminc.com.

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Morton Grove, Ill. – Nov. 20, 2014 – Xylem Inc.’s POWER OF e campaign for its Bell & Gossett brand recently received distinguished honors at the 2014 Business Marketing Association (BMA) Tower and Bell awards. Xylem and its creative partners, Branigan Communications, McDill Design and Really, Really Big Industries, collected awards in the Best Public Relations Campaign, Best B2B Campaign, Best Video, Public Relations: Product PR Program and Marketing Activation: New Product Launch categories. BMA is the premier national organization for professionals in business-to-business marketing and communications.

The POWER OF e campaign focused on two major Bell & Gossett brand product launches — the Series e-1510 single-stage end-suction centrifugal pump and the ecocirc XL large wet rotor circulator pump — that took place at the 2014 Air Conditioning, Heating, Refrigeration Exposition (AHR Expo). The comprehensive marketing campaign highlighted the highly efficient products’ expert engineering and advanced technologies that further expand the company’s broad, global product portfolio.

“These are highly differentiated products that enable our customers to get tremendous productivity gains through energy and operational efficiencies in HVAC and plumbing systems,” said Monica Levy, Vice President, Global Communications, Xylem’s Applied Water Systems business unit. “The POWER OF e campaign showcased this offering to the industry in a compelling and interesting way, and we are honored to receive this recognition.”

To POWER OF e campaign included a preview press event at Bell & Gossett’s Little Red Schoolhouse hydronic systems educational facility in Morton Grove, Illinois, a microsite, electronic press kits, meetings with trade publications, a social media program and the creation of a white paper focused on a next generation pumping systems concept called Efficiency Island.

The campaign went on to receive a silver award in the Public Relations: Product PR Program category, and bronze award in the Marketing Activation: New Product Launch division at the Tower Awards, hosted by BMA Chicago on Oct. 21. Additionally, the POWER OF e campaign was a finalist for the People’s Choice Top 10, which represents the judges’ favorites from all of the submissions. Chicago is the single-largest chapter of BMA in the nation, serving nearly 550 business-marketing professionals.

The POWER OF e campaign also won top honors in the BMA Milwaukee’s Bell Awards in the Best Public Relations Campaign category. This year, BMA Milwaukee had 175 submissions for the annual marketing awards show, nearly 30 percent more than 2013, and Xylem received one of the 24 Bell Awards. Additionally, Xylem took home two of the 40 Excellence Awards for Best B2B Campaign and Best Video. The POWER OF e video, which was housed on the campaign microsite, had more than 3,400 views.

About Xylem

Xylem (XYL) is a leading global water technology provider, enabling customers to transport, treat, test and efficiently use water in public utility, residential and commercial building services, industrial and agricultural settings. The company does business in more than 150 countries through a number of market-leading product brands, and its people bring broad applications expertise with a strong focus on finding local solutions to the world’s most challenging water and wastewater problems. Xylem is headquartered in Rye Brook, N.Y., with 2013 revenues of $3.8 billion and more than 12,500 employees worldwide. Xylem was named to the Dow Jones Sustainability Index for the last three years for advancing sustainable business practices and solutions worldwide.

The name Xylem is derived from classical Greek and is the tissue that transports water in plants, highlighting the engineering efficiency of our water-centric business by linking it with the best water transportation of all — that which occurs in nature. For more information, please visit us at www.xyleminc.com.

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Volume 1 / Issue 4 / December 2014
A customer recently asked how a vacuum system works and what the vacuum in a combination vacuum/condensate return pump actually does. We explained that vacuum units don’t suck the steam through the system; they remove air in front of the steam. This lets the steam move through the system faster and more efficiently, because it doesn’t have to push air out of the way. That preserves the boiler’s energy for heating.

Removing air also makes the system’s pressure lower than that of the surrounding atmosphere. Because high pressure always flows to low pressure, increasing the differential causes steam to move rapidly even to remote sections of the system, providing quick and even distribution. In addition, the vacuum allows for lifting condensate from low or wetted returns. The Domestic Pump and Hoffman Pump vacuum units can actually lift condensate 5 feet—and even farther with a mechanical step lift.

Sub-atmospheric pressure also results in low-temperature boiling. A review of the properties of saturated steam tables shows that at 8” of mercury, for example, water boils at 197ºF instead of 212ºF. Less heat is required to re-heat condensate to steam, translating into additional energy savings.

Installation benefits include the potential to downsize the return pipes from, say, 6” to 4” or even 3”, cutting installation costs. You can also put pipes in places where you might not normally install them. And the vacuum lift capability may make it easier to pitch pipes for return or to resolve low return line issues.

While vacuum units offer benefits for steam heating systems, they also require maintenance of the unit as well as the traps and vents. For instance, trap failures that cause condensate to return at temperatures above 160ºF can damage the vacuum unit and shorten its life.

Facilities looking to downsize maintenance staff or cut back on service and repairs often consider replacing their vacuum system with straight condensate return/boiler feed equipment. This change can lead to daunting and sometimes expensive problems; hence the adage, “Once a vacuum system, always a vacuum system.” Remember, system design and operation are predicated on using the vacuum to assist in steaming. Replacing the unit without understanding its function can result in poor performance or no performance at all.

Vacuum units may be more expensive to install than simple condensate return or boiler feed units, but savings over the life of the unit can easily offset costs. Maintaining the system properly is preferable to a complete replacement.

If you’re faced with repairing or replacing vacuum systems, it’s smart to involve consulting or design engineers and factory reps to help customers make an informed choice.

Volume 1 / Issue 4 / December 2014
Setting the valves at different pressures lets the system respond efficiently to variations in demand.

Main Valves A and B with spring pilots are, together, sized for the maximum stream flow. During peak demand, both valves supply steam to the system.

Valve B, the smaller of the two main valves, is sized for “off-peak” demand. Valve B’s spring pilot pressure is set 10% (minimum 2 psig) above valve A’s spring pilot setting.

As system demand decreases, the pressure rises, meeting the setting of the larger Valve A and shutting it down. Valve B remains open to satisfy off-peak requirements.

As demand increases and Valve B cannot handle the demand, the delivery pressure drops, and Valve A opens.

Two Pressure Reducing Valves (PRV’s) in Parallel

LAS VEGAS — Dec. 10, 2014 — Goulds Water Technology (GWT), a brand of Xylem Inc., celebrates nearly a year of success after upgrading its renowned Goulds Professional Dealers Association (GPDA) program to offer more focused benefits for members. To highlight the achievement, Xylem invites GPDA members to visit them at the 2014 National Ground Water Association Expo (NGWA), Dec. 9 through 12 in Las Vegas, Nevada, to obtain special rewards and learn about new technologies.

Xylem experts will be at booth 301 to discuss new residential and wastewater products that complement the existing GWT portfolio, and current dealer events and benefits, including a promotion specifically for NGWA attendees. GPDA members can obtain a scratch card revealing a code that earns bonus points ranging from 250 to 5,000 points for program rewards. Additionally, all eligible wastewater products will yield triple points for GPDA members, and Aquavar Solo constant pressure controllers will earn members double points if purchased and registered by Dec. 15.

“Our GPDA program continues to evolve with our membership and in the past year we rolled out new rewards and tools to enhance the support we provide our dealers,” said Scott Shimer, Vice President of Sales – Residential, Xylem. “We greatly value our partnership with the Goulds Water Technology distribution channel and look forward to continuing to strengthen this relationship for many years to come.”

GPDA is a multi-tiered program that rewards dealers at three levels – Iron, Bronze and Stainless – based on points earned through GWT product purchases, or participation in specific activities. The multi-tiered approach enables dealers to choose their level of involvement, while providing all professional pump installers access to tools that can help them market and grow their businesses, such as educational opportunities and support.

New in 2014

The GPDA program was revamped earlier this year with the following changes:

• The rewards program replaced the Goulds Dealer Incentive Plan. The same points earned toward status can be cashed in for rewards, such as such as branded merchandise, power tools, electronics, leisure equipment (i.e., grills or foosball tables), and even Xylem (XYL) stock.
• GWT catalog app is now available for both Android and Apple devices.
• A monthly e-newsletter is distributed featuring stories about dealers, product news, company announcements and general business guidance.
• On-demand training videos address FAQs and benefits of a GPDA membership.
• The brand asset toolkit is available to help dealers quickly and efficiently develop websites and materials.
• A mobile toolkit for iPad, iPhone and Android devices, enables dealers to access membership benefits from the field.
• The loaner program continues to provide dealers with access to the GWT inventory of display equipment (available at Bronze status and above).
• Stainless status benefits in addition to all Iron- and Bronze-level benefits include local PR support to help drive member dealers’ business, access to Xylem’s corporate discount rates for business and personal items, and access to exclusive promotions.

Founded in 1969, the GPDA continues to offer members the core benefits that have made it the industry standard, including: an extended warranty on select products; customer referrals; up to 14 $1,000 scholarships to dependents of GPDA member dealers and their employees; and first access to new product information.

Visit booth 301 at the NGWA Expo to learn more about the GPDA program and the chance to receive bonus points. More info is also available online at www.gpda.info.

About Xylem

Xylem (XYL) is a leading global water technology provider, enabling customers to transport, treat, test and efficiently use water in public utility, residential and commercial building services, industrial and agricultural settings. The company does business in more than 150 countries through a number of market-leading product brands, and its people bring broad applications expertise with a strong focus on finding local solutions to the world’s most challenging water and wastewater problems. Xylem is headquartered in Rye Brook, N.Y., with 2013 revenues of $3.8 billion and more than 12,500 employees worldwide. Xylem was named to the Dow Jones Sustainability Index for the last three years for advancing sustainable business practices and solutions worldwide.

The name Xylem is derived from classical Greek and is the tissue that transports water in plants, highlighting the engineering efficiency of our water-centric business by linking it with the best water transportation of all — that which occurs in nature. For more information, please visit us at www.xyleminc.com.

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LAS VEGAS — Dec. 10, 2014 — Goulds Water Technology (GWT), a Xylem Inc. brand, will feature its comprehensive portfolio of residential and wastewater products, including the new constant pressure controller Aquavar Solo², at the 2014 National Ground Water Association Expo, Dec. 9 through 12, at the Las Vegas Convention Center. In addition to learning about GWT system solutions at booth 301, NGWA visitors can attend in-booth educational training sessions on a host of topics ranging from product demonstrations to new online tools.

“Installers, well drillers and homeowners are seeking highly efficient and reliable products that are easy to install and come with the best service and support in the industry,” said Chris Preston, Residential Water Product Manager, Xylem. “NGWA gives us the opportunity to share our applications expertise and new technologies for groundwater and wastewater applications that address our customers’ needs.”

Xylem will introduce the Aquavar Solo² – the latest addition to the CentriPro product line – and the new highly efficient FM-Series 6-inch Encapsulated Submersible Motor at NGWA. The Aquavar Solo² features simple setup and compatibility with existing conventional systems, making it a reliable option for residential applications.

NGWA attendees are also invited to stop by Xylem’s booth 301 to learn about upcoming dealer events and benefits as part of the Goulds Professional Dealers Association (GPDA). GPDA helps member professional pump installers grow their businesses through tools, education and support, and recently introduced a new rewards program.

GWT representatives will host a number of in-booth training sessions and lead educational show seminars throughout NGWA, including:

• Tuesday, Dec. 9
  • 3 p.m. – N116, Las Vegas Convention Center: Basic construction and trouble shooting of jet and submersible motors
  • 8:30 a.m. – N201/202 Las Vegas Convention Center: Water Systems Council primer and refresher course

• Wednesday, Dec. 10
  • 1 p.m. – NGWA Show Activity Area: Troubleshooting a 4-inch submersible motor with a digital multimeter
  • 1 p.m. – Xylem Booth 301 – Aquavar Solo² new product training session
  • 1:30 p.m. – NGWA Show Activity Area: Troubleshooting a 4-inch submersible motor with a digital multimeter
  • 1:30 p.m. – NGWA Show Activity Area: Properly calibrating multi parameter water quality instrumentation
  • 2 p.m. – NGWA Show Activity Area: Troubleshooting a 4-inch submersible motor with a digital multimeter
  • 2 p.m. – Xylem Booth 301: Aquavar Solo² new product training session
  • 3 p.m. – Xylem Booth 301: Xylem Online configure, price quote system training session (turbines)
  • 4 p.m. – Xylem Booth 301: Aquavar Solo² new product training session
  • 5 p.m. – Xylem Booth 301: Xylem Online configure, price quote system training session (general)

• Thursday, Dec. 11
  • 10 a.m. – N116, Las Vegas Convention Center: Water System Efficiency: Myth or Reality
  • 11 a.m. – NGWA Show Activity Area: Troubleshooting a 4-inch submersible motor with a digital multimeter
  • 11 a.m. – Xylem Booth 301: Xylem Online configure, price quote system training session (turbines)
  • 11:30 a.m. – Xylem Booth 301: Aquavar Solo² new product training session
  • 11:30 a.m. – NGWA Show Activity Area: Troubleshooting a 4-inch submersible motor with a digital multimeter
  • Noon – NGWA Show Activity Area: Properly calibrating multi parameter water quality instrumentation
  • Noon – Xylem Booth 301: Aquavar Solo² new product training session
  • 1 p.m. – Xylem Booth 301: Xylem Online configure, price quote system training session (general)
  • 2 p.m. – Xylem Booth 301: Aquavar Solo² new product training session
  • 3 p.m. – Xylem Booth 301: Xylem Online configure, price quote system training session (general)

To learn more about Goulds Water Technology, visit Booth 301 during the NGWA Expo or visit www.gouldswatertechnology.com.

About Xylem

Xylem (XYL) is a leading global water technology provider, enabling customers to transport, treat, test and efficiently use water in public utility, residential and commercial building services, industrial and agricultural settings. The company does business in more than 150 countries through a number of market-leading product brands, and its people bring broad applications expertise with a strong focus on finding local solutions to the world’s most challenging water and wastewater problems. Xylem is headquartered in Rye Brook, N.Y., with 2013 revenues of $3.8 billion and more than 12,500 employees worldwide. Xylem was named to the Dow Jones Sustainability Index for the last three years for advancing sustainable business practices and solutions worldwide.

The name Xylem is derived from classical Greek and is the tissue that transports water in plants, highlighting the engineering efficiency of our water-centric business by linking it with the best water transportation of all — that which occurs in nature. For more information, please visit us at www.xyleminc.com.

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LAS VEGAS — Dec. 11, 2014 — Goulds Water Technology (GWT), a Xylem Inc. brand, announced today the launch of the CentriPro Aquavar Solo² constant pressure controller at the 2014 National Groundwater Association (NGWA) Expo in Las Vegas. GWT updated its industry-leading controller to continue to meet the needs of homeowners with fluctuating water pressure.

The constant pressure system automatically monitors household water demand, maintaining pressure when multiple water sources, such as sinks, showers and toilets are operating simultaneously. The Aquavar Solo² is as easy to set up and as reliable as its predecessor, the Aquavar Solo, but it has several new and innovative features, including an LED display that provides installers with a digital view of settings such as system pressure, amps, speed and fault history. An advanced output relay can be used for customized installations and to connect accessories, such as a chlorinator pump or an alarm system for unlimited system flexibility.

“Our customers want an extension of the trustworthy Aquavar Solo that provides even more dependable and consistent water pressure,” said Chris Preston, Residential Water Product Manager, Xylem. “The Solo2 can take dismal rural water pressure to better than municipal water pressure with the push of a button.”

The Aquavar Solo² is rated for indoor and outdoor use with a large variety of mounting options. It’s also is engineered to enable homeowners to run hoses and sprinklers while still using multiple indoor water fixtures. It is compatible with any manufacturer’s motor – making it ideal for retrofits or system upgrades. Additionally, the soft-start feature helps extend the life of the pump and motor, requiring less energy for startup and operation and eliminating the risk of excessive heat, which is the most common cause of motor failure.

Aquavar Solo² also features several other benefits for installers and homeowners, including:

• Reduction or elimination of noisy pipes, due to the soft start/stop feature.
• Total system protection, helping to avoid costly repairs by automatically shutting off the pump if it detects no water, loss of prime and over-current and voltage situations.
• Ability to have a more compact layout utilizing the existing pressure tank or a smaller tank model.

For tips on how homeowners can enhance their water systems, visit http://residential.goulds.com/.

About Xylem

Xylem (XYL) is a leading global water technology provider, enabling customers to transport, treat, test and efficiently use water in public utility, residential and commercial building services, industrial and agricultural settings. The company does business in more than 150 countries through a number of market-leading product brands, and its people bring broad applications expertise with a strong focus on finding local solutions to the world’s most challenging water and wastewater problems. Xylem is headquartered in Rye Brook, N.Y., with 2013 revenues of $3.8 billion and more than 12,500 employees worldwide. Xylem was named to the Dow Jones Sustainability Index for the last three years for advancing sustainable business practices and solutions worldwide.

The name Xylem is derived from classical Greek and is the tissue that transports water in plants, highlighting the engineering efficiency of our water-centric business by linking it with the best water transportation of all — that which occurs in nature. For more information, please visit us at www.xyleminc.com.

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Morton Grove, Ill. – Dec. 18, 2014 – With ever-evolving legislation and technologies, continuing education is essential for industry professionals who want to stay on top of their game and give knowledgeable counsel to their customers. The first-quarter seminar schedule is now available for Bell & Gossett’s Little Red Schoolhouse, a state-of-the-art training center in Morton Grove, Illinois. These seminars provide a wide array of systems design training to engineers, wholesalers and contractors in the plumbing and hydronic heating and cooling industries.

“Proposed pump efficiency legislation is a hot topic right now, and our team at Xylem has been at the forefront of those discussions and developments,” said Larry Konopacz, manager, training and education, Little Red Schoolhouse, Xylem. “We’re excited to share our system solutions with the rest of the industry and ensure they are compliant with the current codes. Little Red Schoolhouse seminars provide attendees with the tools necessary to provide the best recommendations for their customers and end users.”

For the past 60 years, the Little Red Schoolhouse has trained more than 60,000 engineers, contractors and installers globally in the proper design, installation and maintenance of hydronic systems. The Little Red Schoolhouse offers International Association for Continuing Education & Training (IACET) continuing education units (CEUs) for its programs that qualify under the ANSI/IACET Standard. Seminars are taught by LEED Accredited Professionals. Attendees earn 1.7 CEUs upon successful completion. Early registration is recommended, as space is limited to 40 people per class.

Little Red Schoolhouse first quarter schedule:

Design & Application of Water Based HVAC Systems Seminar*                     Feb. 2-4

Modern Hydronic Heating Systems – Basic Seminar*                                     Feb. 9-11

Modern Hydronic Heating Systems – Advanced Seminar*                              Feb. 23-25

Plumbing Systems Design Seminar                                                                  March 2-4

Design & Application of Water Based HVAC Systems Seminar*                     March 23-25

Large Chilled Water System Design Seminar*                                                  March 30-April 1

Steam System Design & Application Seminar                                                   April 13-15

* Seminar approved by Green Building Certification Institute to provide credit toward the credential maintenance requirements of the LEED Green Associate and LEED AP certifications.

Reservations must be made through a Bell & Gossett representative. For seminar descriptions, representative information and enrollment, visit www.bellgossett.com/training-education/.

About Xylem

Xylem (XYL) is a leading global water technology provider, enabling customers to transport, treat, test and efficiently use water in public utility, residential and commercial building services, industrial and agricultural settings. The company does business in more than 150 countries through a number of market-leading product brands, and its people bring broad applications expertise with a strong focus on finding local solutions to the world’s most challenging water and wastewater problems. Xylem is headquartered in Rye Brook, N.Y., with 2013 revenues of $3.8 billion and more than 12,500 employees worldwide. Xylem was named to the Dow Jones Sustainability Index for the last three years for advancing sustainable business practices and solutions worldwide.

The name Xylem is derived from classical Greek and is the tissue that transports water in plants, highlighting the engineering efficiency of our water-centric business by linking it with the best water transportation of all — that which occurs in nature. For more information, please visit us at www.xyleminc.com.

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Volume 2 / Issue 1 / January 2015

1. Make sure drip traps were installed first.
Installing drip traps ahead of regulators prevents accumulation of condensate that can cause water hammer and destroy the valve.

2. Check for dead-end service.
The industry standard seat leakage rate for metal single seated valves is .01% of rated flow. Special lapping may be required in applications where .01% flow will cause pressure or temperature override.

3. What’s the pressure relief valve setting?
Base the set point pressure for the relief valve opening on the downstream pressure from the regulator, which is controlled by the spring pressure pilot setting. As the chart shows, the actual relief valve set point pressure depends on the relationship of the flow (load) to the rated capacity of the main valve.

Determine the relief valve set point pressure as follows:

4. Check lifts in the return line on heat exchanger
applications. This causes wide swings in temperature, because condensate can’t drain from the heat exchanger shell until the pressure is sufficient to lift the condensate. The steam pressure in the heat exchanger shell required to lift the condensate can then cause a temperature overshoot.

5. Is the bleed orifice installed?
Without the bleed orifice properly installed, the main valve will not open completely or, with low pressure applications, may not open at all. Temperature applications must use the smaller 1/16 inch bleed
orifice (factory installed).

6. Check regulator sizing.
Oversized valves will “hunt” and will also wear prematurely. Resist the temptation to size the valve to the pipe around it. The correct valve will normally be smaller.

7. Are steam traps undersized?
If condensate backs up in the heat exchanger shell, the regulator may be undersized. Condensate backed up into the heat exchanger shell covers some of the tubes, reducing the heat transfer surface. To avoid problems, size the trap based on ½ psi as suggested in the trap manual.

B&G Hoffman Specialty®
Float and Thermodisc Trap

8. Where is the sensing bulb (temperature pilot)?
Bulbs must be fully inserted in the fluid being controlled. If part of the tube is in a dead area, the sensing bulb will not respond properly.

9. Check pilot sensing line locations. Are sensing lines plugged?
Plugged or poorly located sensing lines send the wrong signal to the pilot. Locate the sensing line in an area with representative outlet pressure. With heat exchanger applications, you can install the sensing line on a tee connected to the vacuum breaker tapping.

Quick-test troubleshooting for  Series 2000 pilot

CAUTION: The quick test involves steam. Use caution to prevent burns.

Spring Pilots
1. Isolate the main valve from the steam line. Make sure the internal pressure is 0 psig and let the valve cool to prevent injury.
2. Disconnect the copper tubing line from the main valve diaphragm. Point tubing in a direction to prevent damage or burns. Back off spring tension by unscrewing the adjusting screw. If a temperature pilot is in use, make the temperature setting higher than the bulb temperature.
3. Slightly open the shutoff valve in the steam supply to the main valve and allow pressure to build.
4. Increase the spring tension on the pilot until steam passes from the open end of the copper tubing line. Back off spring tension; the steam flow should stop. A slight leakage is OK. Repeat several times. If the pilot starts and stops the steam supply, it should be repaired or replaced.
5. If the pilot responds properly, the problem is elsewhere in the system.

Temperature Pilots
1. Isolate the main valve from the steam line. Make sure the internal pressure is 0 psig and let the valve cool
to prevent injury.
2. Disconnect the copper tubing line from the main valve diaphragm. Point tubing in a direction to prevent damage or burns. Back off temperature setting by turning the temperature knob. A set screw in the adjusting knob locks in the setting. Loosen the set screw to turn the knob. If a spring pilot is in use, make sure the spring adjustment has the spring pilot open.
3. Slightly open the shutoff valve in the steam supply to the main valve and allow pressure to build.
4. Increase the temperature setting on the pilot until steam passes from the open end of the copper tubing line. Back off temperature setting; the steam flow should stop. A slight leakage is OK. Repeat several times. If the pilot starts and stops the steam supply, it should be repaired or replaced.
5. If the pilot responds properly, the problem is elsewhere in the system.

Diaphragm Replacement
A leak in the diaphragm means full steam pressure can’t build up under the diaphragm, and the valve will not fully open.

Here’s how to check if the diaphragm has a leak. Close off the steam supply to the main valve; remove the copper tubing line to the main valve diaphragm. Partially open the main valve bypass line and allow pressure to build downstream. If the diaphragms have a leak, steam will discharge from the diaphragm chamber.

To replace the diaphragms:
1. Isolate the main valve from the steam line. Make sure the internal pressure is 0 psig and let the valve cool to prevent injury.
2. Remove the copper tubing line that connects to the diaphragm cover.
3. Loosen bolts around the diameter of the diaphragm cover. Remove about 75% of the bolts completely, then back off the nuts on the remaining 25% to the point where you can remove the diaphragms using needle nose pliers. Insert new diaphragms and replace the bolts. Tighten the diaphragm cover bolts using a star pattern.
4. Reinstall the copper tubing line and return valve to service. Inspect for leaks.

Remember
• Valve should operate between 50% and 100% of rated capacity
• Maximum recommended pressure drop across a single stage is 100 psi
• Pressure drop above 150 psi will reduce valve life

Volume 2 / Issue 1 / January 2015

There’s an art to replacing an old steam boiler with a new, low-water-content boiler. You must manage the intricacies of connecting a boiler that holds less water, has a smaller steam separating chamber and makes steam more violently with pipes and radiators that may be 70 to 80 years old.

The challenges start with the way the old system operates: Water in the boiler is converted to steam, heads out to the system, then condenses into water and gravity-drains back to the boiler. Old boilers hold so much water that, whether the condensate returns in five minutes or 20 minutes, the boiler water line never drops enough to start the make-up water feeder.

Today’s smaller replacement boilers hold less water, and the chamber that separates the steam from the water in the boiler is smaller. This allows some water to leave the boiler prematurely, in a mist-like spray—which makes near-boiler piping critical.

It also means system lag suddenly matters. If it takes too long for the condensate to return to the boiler, the new boiler’s low-water cutoff may shut off the burner, or the make-up feeder may start adding cold, untreated water to the systems. But once all the condensate finally returns, the water line is too high, and the boiler floods.

Apartment building, church and school steam systems with gravity returns and automatic feeders are infamous for system lag that causes replacement boilers to flood. The best way to solve this problem is to install a boiler feed unit.

Boiler feed units are sized based on the steaming rate of the boiler vs. system lag. Remember, we’re focusing on the small amount of water between the boiler’s water line and its low-water cutoff—not the total water in the boiler.

Feed units have larger receivers that act like reservoirs to hold the water needed by the new smaller boiler. Pumps attached to the feed units are typically controlled by a dedicated control on the boiler, such as the M&M 42 or M&M 150.

The pump controller activates the pump when the water line drops to low. When the water line returns to the right level, the controller turns the pump off, preventing flooding.

Installing a feed unit helps a new, more efficient boiler work with an old system—but realize that you’re changing the way the system operates. It is no longer a closed gravity return system. Instead, the return lines all drain into the feed tank, which is vented to the atmosphere because it is not pressure vessel.

This means you must install float and thermostatic traps at the base of every riser that drips into a wet return line and at the end of every steam main. Without those traps, there’s nothing to stop the steam from working its way through to the feed unit’s vent pipe.

Before, when the returns drained directly into the boiler, the back pressure of the boiler created a balance between the pressures on the supply and the returns. With vented feed units, there is no back pressure from the supply. Steam will be more than happy to push through the water vapor seals and show up at the receiver vent pipe, creating water hammer all along the way.

If you’re adding a boiler feed unit to a two-pipe system that already has radiator traps, be sure those traps work. Otherwise, steam will pass through the trap into the returns, creating water hammer and escaping out the vent pipe. That’s because the dry returns also drain into the feed tank.

We’re happy to help you perfect the art of making new boilers work with old systems. Contact your local Hoffman Specialty® / Domestic® Pump Representative for more on steam systems, feed units and steam condensate handling equipment.

CHICAGO – Jan. 20, 2015 – Bell & Gossett (B&G), a Xylem brand, will expand its breadth of industry-leading hydronic system design training with the introduction of the Online Little Red Schoolhouse — an interactive, self-paced series of free educational courses — debuting at the 2015 AHR Expo, Jan. 26 through 28 in Chicago.

The launch of Bell & Gossett’s Online Little Red Schoolhouse marks the first time the iconic brand’s pump systems training and educational programming will be available to a global audience via the internet.

“Part of B&G’s legacy is to deliver the best hydronic system design training in the industry, regardless of product loyalty,” said Mark Handzel, Vice President of Product Regulatory Affairs and Director, HVAC & Commercial Buildings Business Unit Americas. “By adapting our proprietary Little Red Schoolhouse training and deep applications expertise to an online format, we are ensuring our systems solutions approach for HVAC and plumbing applications is accessible to all.”

For 60 years, the B&G Little Red Schoolhouse, a state-of-the-art facility in Morton Grove, Illinois, has trained more than 60,000 engineers, contractors and installers on the proper design, installation and maintenance of hydronic systems, as well as the latest technologies and regulations that affect the industry. In 2013, the Little Red Schoolhouse expanded further when B&G opened a location in Nanjing, China.

A complement to the hands-on experience the B&G Little Red Schoolhouse in Morton Grove, Illinois or Nanjing, China, provides, the Online Little Red Schoolhouse will launch with two multi-session courses – a 12-module course on centrifugal pump basics, pump curves, pump selection and parallel and series pumping, and a five-module piping systems course outlining multiple pipe configurations used with pumping systems. More courses will be added throughout the year and beyond, serving as the premier destination for virtual HVAC and plumbing system design training in the commercial building segment.

“B&G is committed to setting the industry standard for continuing education,” said Larry Konopacz, Training and Education Manager, Little Red Schoolhouse. “Our expanded offering enables us to interact with a new generation of engineers in a way professionals increasingly want to learn, whether it’s to strengthen existing knowledge, develop future engineers, or share cutting-edge technologies.”

The online courses offer solid foundational learning in hydronic system design and are intended to complement the more in-depth hands-on experience offered at the Little Red Schoolhouse facilities. The courses are free to engineers, designers, contractors, building operators and students, and qualify for continuing education unit credits.

The debut of B&G’s Online Little Red Schoolhouse at AHR 2015 follows the 2014 AHR unveiling of its Efficiency Island concept, an extensive efficiency profile that enables users to maintain significantly higher levels of efficiency over a much wider range of operating conditions. Efficiency Island will be an additional focus of B&G’s educational programming during 2015.

Visit Xylem at booth #5223 during AHR 2015 in Chicago to interact with the Online Little Red Schoolhouse and learn more about Efficiency Islands. In addition, the booth will feature B&G’s extensive portfolio of efficient products, including the e-1510, named the 2014 product of the year by Consulting-Specifying Engineer, and the ecocirc XL, which received an AHR Expo 2015 Innovation Awards honorable mention.

To learn more about the Online Little Red Schoolhouse, review the schedule or sign up for a course, please visit http://bellgossett.com/training-education/.

For more information about Bell & Gossett products, visit http://bellgossett.com/ or locate a Bell & Gossett representative at http://bellgossett.com/sales-service/.

About Xylem

Xylem (XYL) is a leading global water technology provider, enabling customers to transport, treat, test and efficiently use water in public utility, residential and commercial building services, industrial and agricultural settings. The company does business in more than 150 countries through a number of market-leading product brands, and its people bring broad applications expertise with a strong focus on finding local solutions to the world’s most challenging water and wastewater problems. Xylem is headquartered in Rye Brook, N.Y., with 2013 revenues of $3.8 billion and more than 12,500 employees worldwide. Xylem was named to the Dow Jones Sustainability Index for the last three years for advancing sustainable business practices and solutions worldwide.

The name Xylem is derived from classical Greek and is the tissue that transports water in plants, highlighting the engineering efficiency of our water-centric business by linking it with the best water transportation of all — that which occurs in nature. For more information, please visit us at www.xyleminc.com.

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