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Watts LF909 Reduced Pressure Zone Backflow Preventer with Flood - Watts RPZ Backflow Preventers
WattsWatts RPZ Backflow Preventers

Watts LF909 Reduced Pressure Zone Backflow Preventer with Flood

The Watts LF909 is a reduced pressure zone (RPZ) backflow preventer from Watts, featuring a copper silicon alloy construction and a flood detection sensor. It is equipped with ball valve shut-off valves and has an…

SKU 3G-OTH-444361

Also listed as: F 391012 · F-391012

Brand
Watts
Item
LF909 Reduced Pressure Zone Backflow Preventer with Flood
Part Number
F391012
Category
Watts RPZ Backflow Preventers
Available to Order
Also known as:F391012Watts
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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
F391012
Type
with Flood Detection Sensor, Copper Silicon Alloy, MNPT
Connection Type
MNPT
Shut-Off Valve Type
Ball Valve

Technical Documents

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

Product Description

The Watts LF909 is a reduced pressure zone (RPZ) backflow preventer from Watts, featuring a copper silicon alloy construction and a flood detection sensor. It is equipped with ball valve shut-off valves and has an MNPT connection type (manufacturer part number F391012).

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 LF909 reduced pressure zone assembly used for?

The Watts LF909 is a reduced pressure zone (RPZ) backflow preventer designed to protect potable water supplies from cross-connection contamination. It is commonly installed in commercial, industrial, and municipal water systems where high-hazard backflow conditions exist, ensuring safe water delivery.

What are the specifications of the Watts LF909 backflow preventer?

The Watts LF909 features a copper silicon alloy body with a flood detection sensor, ball valve shut-off valves, and MNPT connection type. The manufacturer part number is F391012. It is a reduced pressure zone assembly suitable for high-hazard backflow prevention applications.

Where to buy the Watts LF909 backflow preventer worldwide?

3G Electric supplies the Watts LF909 RPZ backflow preventer (MPN F391012) to customers worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

How to install the Watts LF909 reduced pressure zone assembly?

Install the Watts LF909 in a horizontal position with adequate clearance for testing and maintenance. Ensure the flood detection sensor is properly connected to a monitoring system. Follow local plumbing codes and use approved thread sealant on MNPT connections. Always consult the manufacturer's installation manual.

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 rpz 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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