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Watts LF719-QT-S Double Check Backflow Preventer, 1/2 in, Bronze, FIP x FIP - Watts Double Check Backflow Preventers
WattsWatts Double Check Backflow Preventers

Watts LF719-QT-S Double Check Backflow Preventer, 1/2 in, Bronze, FIP x FIP

The Watts LF719 is a Watts Double Check Backflow Preventer, specifically a Double Check Valve Assembly. This model features a 1/2-inch pipe size with FIP x FIP connections and a ball valve shut-off valve. The…

SKU 3G-OTH-434561

Also listed as: LF719QTS · LF719 QT S

Brand
Watts
Item
LF719-QT-S Double Check Backflow Preventer, 1/2 in, Bronze, FIP x FIP
Part Number
LF719-QT-S
Category
Watts Double Check Backflow Preventers
Available to Order
Also known as:LF719-QT-SWatts
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Technical specs
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

Watts
Manufacturer Part Number
LF719-QT-S
Type
FIP x FIP, Bronze
Overall Lg
12.56 in
Pipe Size
1/2 in
Connection Type
FIP x FIP
Shut-Off Valve Type
Ball Valve

Technical Documents

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3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Watts LF719 is a Watts Double Check Backflow Preventer, specifically a Double Check Valve Assembly. This model features a 1/2-inch pipe size with FIP x FIP connections and a ball valve shut-off valve. The assembly is constructed from bronze and has an overall length of 12.56 inches.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the Watts LF719 double check valve assembly used for?

The Watts LF719 double check valve assembly prevents backflow of contaminated water into potable water supplies. It is used in commercial and industrial plumbing systems, irrigation, and boiler feed lines where non-health-hazard cross-connections exist. 3G Electric supplies this bronze, 1/2 in FIP x FIP assembly for worldwide delivery.

What are the specifications of the Watts LF719-QT-S backflow preventer?

The Watts LF719-QT-S is a 1/2 in pipe size double check valve assembly with FIP x FIP connections and ball valve shut-offs. It is made of bronze, has an overall length of 12.56 in, and is designed for backflow prevention. 3G Electric sources genuine Watts components for global supply.

Where to buy a Watts LF719 double check valve assembly worldwide?

3G Electric supplies the Watts LF719 double check valve assembly to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. As a global industrial solutions provider, we source genuine Watts backflow preventers and support procurement across 14 industrial departments.

How to install a Watts double check valve assembly?

Install the Watts LF719 in a horizontal or vertical position with flow arrow pointing downstream. Ensure upstream and downstream shut-off valves are accessible for testing. Use thread sealant on FIP connections and support piping to avoid stress on the bronze body. 3G Electric provides sourcing support for this assembly.

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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