Watts LF7R 1/2 Lead-Free Dual Check Valve Backflow Preventer, Copper, NPT

The Watts LF7R 1/2 is a 1/2" lead-free dual check valve with NPT connections, approved for low health hazard protection. It features a copper body and a epdm seat. Rated to 175 psi. This model is certified lead-free for potable-water installations.

This lead free female union NPT tailpiece extends the lay length of a 1/2 inch lead free dual check valve backflow preventer, series LF7R, to match the length of the 1/2 inch dual check valve backflow preventer, series 7. It is made of lead free brass and has female union NPT connection.

Features

• Lead free brass construction for durability
• Female union NPT
• Matches lay length for series 7 dual check valve
• For 1/2 inch LF7R U2 Series

Common Questions

What hazard level is this Dual Check approved for?

It is rated for low health hazard (non-toxic, "pollutant") cross-connections only. Where the substance downstream could be a health hazard, codes require a reduced pressure zone (RPZ) assembly instead. The assembly is listed to ASSE 1024.

Is this model legal for potable water?

Yes. It is certified lead-free to NSF/ANSI 372, which is what state plumbing codes require for any device in a drinking-water line.

Can this device be field tested?

No. It has no test cocks and is not a testable assembly, so it cannot be certified by a backflow tester. Where a jurisdiction requires an annually tested device, specify a testable assembly (double check, RPZ, or PVB) instead.

Specifications

• Type: Dual Check
• Size: 1/2"
• Inlet Size: 1/2"
• Outlet Size: 1/2"
• Connection: NPT
• Body Material: Copper
• Seat / Seal Material: EPDM
• Max Pressure (psi): 175
• Backflow Protection: Backpressure
• Operation: Continuous
• Pack Quantity: 25
• Country of Origin: United States
• Warranty: 1 Year Limited
• MPN: LF7R 1/2
• Certifications: ASSE-1024
• Lead-Free: Yes
• Assembly Type: Dual Check
• Hazard Protection Level: Low Health Hazard
• ASSE Standard: ASSE 1024
• USC FCCCHR Approved: No
• Field Testable: No
• Number of Test Cocks: 0
• Shutoff Valves: None
• Flood Sensor (SentryPlus Alert): No
• Strainer Included: No
• Air Gap Fitting Included: No