LF9D
Lead Free* Dual Check Valve Backflow Preventers with Intermediate Atmospheric Vent
Series LF9D dual check with intermediate atmospheric vent is specially made for smaller supply lines and ideally suited for ice makers, steamers, laboratory equipment, processing tanks, sterilizers, dairy equipment and similar applications.
Series LF9D is particularly recommended for boiler feed lines to prevent backflow when supply pressure falls below system pressure. Minimum Working Pressure: 25psi (172kPa), Maximum Working Pressure: 175psi (12.1 bar).
Features
- Lead Free* forged brass body construction
- Stainless steel internal parts for longevity
- Can be installed vertically or horizontally
- Line-sized construction enables check modules to open further, helping to reduce check fouling
Literature
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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 |