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Watts 1-1/2 LF007M2-QT-S Double Check Backflow Preventer - Watts Double Check Backflow Preventers
WattsWatts Double Check Backflow Preventers

Watts 1-1/2 LF007M2-QT-S Double Check Backflow Preventer

The Watts LF007 is a double check backflow preventer from Watts, featuring a 1-1/2 in pipe size with FNPT x FNPT connections and a ball valve shut-off. It operates within a temperature range of 33°F to 180°F and has…

SKU 3G-OTH-434573

Also listed as: 112LF007M2QTS · 1 1 2 LF007M2 QT S · 1-1-2-LF007M2-QT-S

Brand
Watts
Item
1-1/2 LF007M2-QT-S Double Check Backflow Preventer
Part Number
1-1/2 LF007M2-QT-S
Category
Watts Double Check Backflow Preventers
Available to Order
Also known as:1-1/2 LF007M2-QT-SWatts
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Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
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Technical Specifications

Watts
Manufacturer Part Number
1-1/2 LF007M2-QT-S
Type
FNPT x FNPT, 33°F – 180°F
Overall Lg
21.75 in
Pipe Size
1 1/2 in
Connection Type
FNPT x FNPT
Shut-Off Valve Type
Ball Valve

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Watts Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Watts LF007 is a double check backflow preventer from Watts, featuring a 1-1/2 in pipe size with FNPT x FNPT connections and a ball valve shut-off. It operates within a temperature range of 33°F to 180°F and has an overall length of 21.75 inches, as specified by the manufacturer part number 1-1/2 LF007M2-QT-S.

Frequently Asked Questions

What is the Watts LF007 backflow preventer used for?

The Watts LF007 double check backflow preventer is used in commercial and industrial water systems to prevent contaminated water from flowing backward into the potable supply. It is commonly installed on fire sprinkler systems, irrigation lines, and process water connections where non-hazardous backflow conditions exist.

What are the specifications of the Watts LF007 backflow preventer?

The Watts LF007 has a 1 1/2 in pipe size with FNPT x FNPT connections and a ball valve shut-off. It operates from 33°F to 180°F, has an overall length of 21.75 in, and is identified by manufacturer part number 1-1/2 LF007M2-QT-S. This Watts double check assembly is designed for reliable backflow protection.

Where to buy the Watts LF007 backflow preventer worldwide?

3G Electric supplies the Watts LF007 backflow preventer to customers worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and a quote for the 1-1/2 LF007M2-QT-S model.

How to install a Watts LF007 backflow preventer?

Install the Watts LF007 in a horizontal or vertical position with adequate clearance for servicing. Ensure flow direction matches the arrow on the body. Use pipe thread sealant on FNPT connections and support the valve to avoid stress. Test the double check assembly after installation per local plumbing codes.

Used in

Common applications for Watts
Commercial plumbing – Watts standard capacity water pressure regulators (3/8 LF 26AB) for stabilizing incoming water pressure
Industrial steam systems – Watts 152A series steam pressure regulators for pressure reduction in process and heating lines
Cross-connection control – Watts 757 double check backflow preventers for commercial and industrial water supply protection
Boiler safety – Watts ASME Section XIII temperature and pressure relief valves for overpressure protection in heating systems
Hydronic heating – Watts CP16 pilot-operated pressure regulators for maintaining consistent pressure in steam or water loops
Water hammer mitigation – Watts LF15M2-A water hammer arrestors for absorbing surges in quick-closing valve applications
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Watts Products

3G Electric supplies Watts watts double check backflow preventers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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This double check backflow preventer features a bronze body with 1 1/4 in FNPT x FNPT connections and a ball valve shut-off. It is used to prevent reverse flow in low-hazard cross-connections under continuous pressure in commercial and industrial plumbing systems
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This double check backflow preventer features a bronze body with 1 1/4 in FNPT x FNPT connections and a ball valve shut-off. It is used to prevent reverse flow in low-hazard cross-connections under continuous pressure in commercial and industrial plumbing systems
Double check backflow preventer with 1 1/4 in FNPT x FNPT connections and ball valve shut-off. Temperature range 33°F – 180°F, overall length 16.38 in. Used in water systems to prevent backflow where non-health-hazard cross-connections exist
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Double check backflow preventer with 1 1/4 in FNPT x FNPT connections and ball valve shut-off. Temperature range 33°F – 180°F, overall length 16.38 in. Used in water systems to prevent backflow where non-health-hazard cross-connections exist

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