757
Double Check Valve Assembly Backflow Preventers Sizes: 2 ½ -10 IN (65 – 250mm)
Features
- Extremely compact and lightweight design
- Easy to install and maintain
- Available with grooved butterfly valve shutoffs
- Replaceable check disc rubber
Series 757 Double Check Valve Assembly Backflow Preventers are designed to prevent the reverse flow of liquids in a plumbing system due to backpressure or backsiphonage where there is a non-health hazard. Compact design and lightweight stainless steel construction (70% lighter than traditional designs) makes installation easier and faster. For unmatched versatility, assemblies are available for horizontal, vertical, or N pattern installations while groove connections allow ease of installation and pipe alignment. Patented tri-link check assemblies are also designed for easy serviceability. A variety of shutoff valve options are offered.
Literature
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Select options below to identify the UPC, Order Code, and Repair Kit for a specific 757
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| Model | Product Used On | Kit Contents |
|---|---|---|
|
RK 757/RK 757DCDA-RC4 2 1/2-4
Check Rubber Parts Kit |
</br> |
Check Module O-ring, Red Silicone Disc Elastomer, E-Clip</br> |
|
RK 757/RK 757DCDA-RC4 6
Check Rubber Parts Kit |
</br> |
Check Module O-ring, Red Silicone Disc Elastomer, E-Clip</br> |
|
RK 757/RK 757DCDA-C 8
Check Sleeve Cover Kit |
</br> |
Closure Sleeve, Sleeve O-ring, Gasket</br> |
|
RK 757/757DCDA-CK1 10
First Check Kit |
</br> |
First Check Module, Check Module O-ring, Red Silicone Disc Elastomer</br> |
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Approval/Certification Information
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