Watts LFH7 3/4 Lead-Free Dual Check Valve Backflow Preventer, Hose

The Watts LFH7 3/4 is a 3/4" lead-free dual check valve with Hose connections, approved for low health hazard protection. It is rated to 10 psi. This model is certified lead-free for potable-water installations.

This 3/4 inch lead free dual check valve backflow preventer with hose connection prevents the reverse flow of polluted water from entering into the drinking water supply at individual outlets. It consists of a chrome plated lead free body with two independently operating check valves, stainless steel springs, pressure plates, and a chrome plated hose connection. It is designed for non-health hazard residential water system containment, continuous pressure applications, such as wash-down sinks with a hose-type device. Minimum working pressure is 10 psi (69kPa). Maximum working pressure is 150 psi (10 bar). Maximum recommended flow is 15 GPM (57 LPM).

Features

• Lead free body construction
• Compact design
• Hose threads
• Variety of end connections

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.

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: 3/4"
• Inlet Size: 3/4"
• Outlet Size: 3/4"
• Connection: Hose
• Max Pressure (psi): 10
• Application: Domestic Water
• Backflow Protection: Backpressure
• Operation: Continuous
• Pack Quantity: 25
• Country of Origin: Mexico
• Warranty: 1 Year Limited
• MPN: LFH7 3/4
• Lead-Free: Yes
• Assembly Type: Dual Check
• Hazard Protection Level: Low Health Hazard
• Field Testable: No
• Number of Test Cocks: 0
• Shutoff Valves: None
• Flood Sensor (SentryPlus Alert): No
• Strainer Included: No
• Air Gap Fitting Included: No