The Watts 007M3-LF-UL 3/4 is a 3/4" lead-free double check valve assembly with NPT connections, approved for low health hazard protection. It features a bronze body and a rubber seat. Rated to 175 psi and 33°F to 180°F. This model is certified lead-free for potable-water installations.
This 3/4 inch double check valve assembly backflow preventer helps prevent the backflow of polluted water from entering into the potable water supply due to backsiphonage and or backpressure in accordance with national plumbing codes and water authority requirements. Its compact modular design facilitates easy maintenance with a single access cover for in-line repairs. It is ideal for protection in continuous pressure piping applications and at cross-connections identified as non-health hazards and for contaminants at the service line entrance. This assembly without shutoffs consists of a cast bronze body construction, NPT end connections, top mounted test cocks, two in-line independent positive seating check modules, captured springs, and replaceable check discs and seats. It is UL classified.
Features
- Cast bronze body construction
- Modular compact design
- Replaceable seats and seat discs
- Top entry
- Includes: Test Cocks
Common Questions
- What hazard level is this Double 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 1015.
- 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.
- Does this assembly have to be tested every year?
- Yes. This is a field-testable assembly with 4 test cocks. Most water authorities require it to be tested and certified by a licensed backflow tester at installation and annually thereafter. It carries USC FCCCHR approval, which many jurisdictions accept as their sole approval list.
- Does this ship with inlet and outlet shutoff valves?
- No. This is the "less valves" (LF) configuration — the assembly ships without inlet and outlet shutoffs. Most jurisdictions require approved shutoffs on both sides, so order them separately or choose a QT, NRS, OSY or BFG variant of this model.
- 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.
Specifications
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Type: Double Check
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Size: 3/4"
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Inlet Size: 3/4"
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Outlet Size: 3/4"
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Connection: NPT
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Body Material: Bronze
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Seat / Seal Material: Rubber
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Max Pressure (psi): 175
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Application: Domestic Water
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Backflow Protection: Both
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Operation: Continuous
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Country of Origin: United States
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Warranty: 1 Year Limited
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MPN: 007M3-LF-UL 3/4
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Temperature: 33°F to 180°F
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Certifications: ASSE-1015, CSA-B64, UL, USC, IAPMO
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Lead-Free: Yes
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Assembly Type: Double Check
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Hazard Protection Level: Low Health Hazard
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ASSE Standard: ASSE 1015
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USC FCCCHR Approved: Yes
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Fire Protection Listing: UL Classified
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Field Testable: Yes
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Number of Test Cocks: 4
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Shutoff Valves: None
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Flood Sensor (SentryPlus Alert): No
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Strainer Included: No
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Air Gap Fitting Included: No
