757
Double Check Valve Assembly Backflow Preventers Sizes: 2 ½ -10 IN (65 – 250mm)
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.
Features
- Extremely compact and lightweight design
- Easy to install and maintain
- Available with grooved butterfly valve shutoffs
- Replaceable check disc rubber
Literature
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- 757, 757DCDA, LF757DCDA, 757Na, 757aDCDA - Repair Kits Parts Breakdown
- Brochure - Backflow Prevention and Flow Control for Waterworks
- Brochure - Backflow Prevention and Flow Control Plumbing
- Brochure - Backflow Retrofit Spool Simple Order Form
- Installation Instructions - 757, 757DCDA, LF757DCDA
- Price List - Backflow Prevention Repair Kits & Service Parts
- Specification Sheet - 757, 757N
- Specification Sheet - 757, 757N (French)
- Specification Sheet - 757, 757N (Spanish)
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Approval/Certification Information
For product-specific approval information, please refer to the product’s specification sheet (see literature section above) or ask a Watts representative. For general information regarding any approval certification partners identified in the specification sheet, please visit our certification partners’ websites:
| ASSE | CSA | FM Approvals | NSF |
| UL | ULC | USC | WQA |