Backflow Prevention
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ur * des o inclu w RfEiE F fer ng No EADoduct o pr L Backflow Prevention Products

Celcon® is a registered trademark of Celanese Corporation. Noryl® is a registered trademark of SABIC Innovative

LEAD FREE Backflow prevention has critical implications in potable water supply systems. With the changeover to Lead Free in the United States effective January 4, 2014, Lead Free backflow prevention devices are required in many applications and/or settings. The Watts backflow preventer product line includes a full complement of Lead Free versions of our trusted & reliable backflow products. Backflow is defined as the reverse flow of contaminated or undesirable substance into the potable water supply. Installing a backflow preventer can protect the water supply from this very serious type...

Features • Extremely compact design • 70% Lighter than traditional designs • 304 (Schedule 40) Stainless steel housing & sleeve • Groove fittings allow integral pipeline adjustment • Patented tri-link check provides lowest pressure loss • Unmatched ease of serviceability • Available with grooved butterfly valve shutoffs • Available for horizontal, vertical or N pattern installations • Replaceable check disc rubber • Sizes 21/d', 3" and 4" (65, 80 and 100mmi available with quarter-turn ball valve shutoffs Pressure-Temperature Temperature Range: 33°F - 140°F (0.5°C - 60°C) Maximum Working...

SIZE DIMENSIONS WEIGHT

Double Check Valve Assemblies Sizes: 21⁄2" – 10" (65 – 250mm) 1 Double Check Valve Assemblies Features • Replaceable stainless steel seats • Maximum flow at low pressure drop • Design simplicity for easy maintenance • No special tools required for servicing • Captured spring assemblies for safety • Approved for vertical flow up installation Pressure-Temperature Temperatures Range: 33°F – 110°F (0.5°C – 43°C) continuous, 140°F (60°C) intermittent Maximum Working Pressure: 175psi (12.1 bar) LF709 Series LF709 Double Check Valve Assemblies are designed to LEAD FREE* prevent the reverse flow of...

SIZE DIMENSIONS tDimension required for screen removal. ❖Quarter-turn (QT) valve dimensions. ttService clearance for check assembly from center.

Double Check Valve Assemblies Sizes: 1⁄2" – 3" (15 – 80mm) 1 Double Check Valve Assemblies Features • Ease of maintenance — only one cover • Top entry • Replaceable seats and seat discs • Modular construction • Compact design • used epoxy coated cast iron body — F 21⁄2" – 3" (65 – 80mm) • Low pressure drop • No special tools required for servicing • 1⁄2" – 1" (15 – 25mm) have tee handles Series LF007 Double Check Valve Assemblies shall be installed LEAD FREE* at referenced cross-connections to prevent the backflow of pol- luted water into the potable water supply. Only those...

007 For Use in Non-Potable Applications Series 007 are designed to protect drinking water supplies from dangerous cross-connections in accordance with national plumbing codes and water authority requirements for non-potable service applications such as irrigation, fireline, or industrial processing. Materials • Cast bronze body construction -V2" - 2" (15 - 50mm) • Top mounted ball valve test cocks Models Sizes: Vi" - 2" (15 - 50mm) Suffix: S - bronze strainer LF - without shutoff valves SH - stainless steel ball valve handles HC - 2V2" inlet/outlet fire hydrant fittings (2" valve) Prefix: U...

For additional information, request literature ES-LF007 and ES-007,

Series 774 Double Check Valve Assemblies are designed to prevent the reverse flow of polluted water from enteri ng into the potable water system. This series can be applied, where approved by the local authority having jurisdiction, on non-health hazard installations. Features short end-to-end dimensions, light weight stain i ess steel body, and the lowest head loss available. Features • Torsion spring check valve provides low head loss • Short lay length is ideally suited for retrofit installations • Stainless steel body is half the weight of competitive designs reducing installation and...

Double Check Valve Assemblies Sizes: 1⁄2" – 2" (15 – 50mm) 1 Double Check Valve Assemblies Features • eparate access, top entry check valve S design • eversible seat disc rubber, extends R check valve life • hloramine resistant elastomers C • eplaceable seats and seat discs R • ompact design C • op mounted screwdriver slotted ball T valve test cocks • ow pressure drop L 1 • ⁄2" – 1" have Tee handles • o special tools required for servicing N • lastic on plastic check guiding P reduces potential binding due to mineral deposits Pressure-Temperature Temperature Range: 33˚F – 180˚F...

SIZE DIMENSIONS STRAINER DIMENSIONS WEIGHT

Features • Extremely compact design • 70% lighter than traditional designs • 304 (Schedule 40) stainless steel housing & sleeve • Groove fittings allow integral pipeline adjustment • Unmatched ease of serviceability • Available with grooved butterfly valve shutoffs • May be used for horizontal, vertical or N pattern installations • Replaceable check disc rubber Pressure-Temperature Temperature Range: 33°F - 140°F (0.5°C - 60°C) Maximum Working Pressure: 175psi (12.1 bar) Materials • Housing & Sleeve: 304 (Schedule 40) Stainless Steel • Elastomers: EPDM, Silicone and Buna-N • Tri-link...

Double Check Detector Assemblies Sizes: 21⁄2" – 12" (65 – 300mm) 2 Double Check Detector Assemblies Features • orsion spring check valve provides T low head loss • hort lay length is ideally suited for S retrofit installations • tainless steel body is half the weight S of competitive designs reducing installation and shipping cost • tainless steel construction provides S long term corrosion protection and maximum strength • ingle top access cover with two-bolt S grooved style coupling for ease of maintenance • hermoplastic and stainless steel check T valves for trouble-free operation • No...