The Watts LF07S-U2-3 1 1/4 is a 1-1/4" lead-free dual check valve with FNPT connections, approved for low health hazard protection. It features a brass body and a silicone seat. Rated to 175 psi. This model is certified lead-free for potable-water installations.
This 1 1/4" lead free dual check valve backflow preventer helps prevent the reverse flow of polluted water from entering into the potable water supply. It consists of a bronze body construction with dual check valve backflow preventers, silicone seat discs, and identification tag. The valve offers low pressure drop, easy maintenance and service, and is designed for non-health hazard systems at the water meter or service entrance. Check with local inspection authorities for installation requirements.
Features
- Lead free construction
- Low pressure drop
- Install horizontally or vertically
- Easy to maintain and service
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.
- Is this listed for fire protection service?
- Yes — it is UL Classified, the listings normally required for a backflow device on a fire sprinkler supply.
- How does this have to be installed?
- It is approved for either horizontal or vertical installation, with the flow arrow on the body pointing in the direction of flow.
Specifications
-
Type: Dual Check
-
Size: 1-1/4"
-
Inlet Size: 1-1/4"
-
Outlet Size: 1-1/4"
-
Connection: FNPT
-
Body Material: Brass
-
Seat / Seal Material: Silicone
-
Max Pressure (psi): 175
-
Application: Domestic Water
-
Backflow Protection: Backpressure
-
Operation: Continuous
-
Pack Quantity: 6
-
Country of Origin: United States
-
Warranty: 1 Year Limited
-
MPN: LF07S-U2-3 1 1/4
-
Certifications: ASSE-1024, UL
-
Lead-Free: Yes
-
Assembly Type: Dual Check
-
Hazard Protection Level: Low Health Hazard
-
ASSE Standard: ASSE 1024
-
USC FCCCHR Approved: No
-
Fire Protection Listing: UL Classified
-
Field Testable: No
-
Number of Test Cocks: 0
-
Shutoff Valves: None
-
Approved Orientation: Horizontal & Vertical
-
Flood Sensor (SentryPlus Alert): No
-
Strainer Included: No
-
Air Gap Fitting Included: No
