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Watts LF709-NRS Double Check Backflow Preventer - Watts Double Check Backflow Preventers
WattsWatts Double Check Backflow Preventers

Watts LF709-NRS Double Check Backflow Preventer

The WATTS LF709 is a double check valve assembly from the Watts Double Check Backflow Preventers product line. This model features a 6-inch pipe size with flange x flange connections and an NRS gate valve shut-off…

SKU 3G-OTH-434587

Also listed as: LF709NRS · LF709 NRS

Brand
Watts
Item
LF709-NRS Double Check Backflow Preventer
Part Number
LF709-NRS
Category
Watts Double Check Backflow Preventers
Available to Order
Also known as:LF709-NRSWatts
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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
LF709-NRS
Type
Flange x Flange, 709
Overall Lg
62.94 in
Pipe Size
6 in
Connection Type
Flange x Flange
Shut-Off Valve Type
NRS Gate Valve

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3G Electric (S) Pte. Ltd. — Singapore

Product Description

The WATTS LF709 is a double check valve assembly from the Watts Double Check Backflow Preventers product line. This model features a 6-inch pipe size with flange x flange connections and an NRS gate valve shut-off type. The assembly has an overall length of 62.94 inches and is identified by manufacturer part number LF709-NRS.

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 LF709 double check valve assembly used for?

The Watts LF709 double check valve assembly is used in commercial and industrial water systems to prevent backflow contamination. It is commonly installed in fire sprinkler systems, irrigation lines, and potable water supplies where non-health-hazard cross-connections exist.

What are the specifications of the Watts LF709 double check valve assembly?

The Watts LF709 has a 6-inch pipe size with flange x flange connections and an NRS gate valve shut-off type. Its overall length is 62.94 inches, and the manufacturer part number is LF709-NRS. It is part of the Watts Double Check Backflow Preventers product line.

Where to buy the Watts LF709 double check valve assembly worldwide?

You can source the Watts LF709 double check valve assembly through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time.

How to install the Watts LF709 double check valve assembly?

Install the Watts LF709 in a horizontal or vertical position with adequate clearance for maintenance. Ensure flange gaskets are aligned and bolts are torqued evenly. Always follow local plumbing codes and the manufacturer's instructions for proper backflow prevention setup.

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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