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Double Check Detector Assemblies
Watts 757 Double Check Detector Assemblies
4" 757 Double Check Detector Assembly (OSY-GPM)
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$5,748.60 each
Out of Stock
Get it Tue, Apr 18 - Thu, Apr 27
MANUALS (2)
Non-Potable Water Applications
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This product does not comply with the “Safe Drinking Water Act,” which requires that products meet low-lead standards in order to be used in systems providing water for human consumption (drinking or cooking). This item is for non-potable (non-human consumption) water applications only.
Lift Gate
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This product weighs 284 lbs. and may require the use of a lift gate. If you do require a lift gate at your delivery, you'll have the option to add this FREE of charge when you checkout.
Free Shipping This item ships free
Easy Returns No restocking fee for 90 days
Product Highlights
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4"
Stainless Steel
175 PSI
140°F Max Temp
33°F Min Temp
Description
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Note: This item does not comply with the 2014 Lead Free Act. It may not be used in potable water applications as of January 4, 2014.
Series 757, 757N Double Check Valve Assemblies are used to prevent backflow of non-health hazard pollutants that are objectionable but not toxic, from entering the potable water supply system. Series 757, 757N may be installed under continuous pressure service and may be subjected to backpressure and backsiphonage. Series 757, 757N consists of two independently operating check valves, two shutoff valves, and four test cocks.
FeaturesExtremely 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
Replaceable check disc rubber
Series 757, 757N Double Check Valve Assemblies are used to prevent backflow of non-health hazard pollutants that are objectionable but not toxic, from entering the potable water supply system. Series 757, 757N may be installed under continuous pressure service and may be subjected to backpressure and backsiphonage. Series 757, 757N consists of two independently operating check valves, two shutoff valves, and four test cocks.
Features
Specs
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| Size: | 4" |
|---|---|
| Material: | Stainless Steel |
| Max Pressure (PSI): | 175 |
| Max Temp (F): | 140°F |
| Min Temp (F): | 33°F |
| Features: | UL/FM outside stem and yoke resilient seated gate valves |
Questions?
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Friday
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Saturday – Sunday
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Free Shipping
On orders over $99
We offer flexible shipping and scheduling options, up-to-date delivery estimates, and free ground shipping on any order over $99 to make sure your order gets to you on-time, for less.
Shipping PolicyEasy Returns
Returning items is as simple as 1-2-3
Ordered the wrong product? Item damaged in transit? Our 3-step process makes returning products easy – even up to a year after purchase – with no restocking fees on returns made within 90 days.
Return Policy