We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

Watts Reduced Pressure Zone Assembly: LF909 Large, with Flood Detection Sensor - Watts RPZ Backflow Preventers
WattsWatts RPZ Backflow Preventers

Watts Reduced Pressure Zone Assembly: LF909 Large, with Flood Detection Sensor

The WATTS Reduced Pressure Zone Assembly: LF909 Large is a Watts RPZ Backflow Preventer featuring a cast iron body and flange connections. It is equipped with an NRS Gate Valve shut-off valve and a Flood Detection…

SKU 3G-OTH-444365

Also listed as: LF909DNRSFS · LF909 DNRS FS

Brand
Watts
Item
Reduced Pressure Zone Assembly: LF909 Large, with Flood Detection Sensor
Category
Watts RPZ Backflow Preventers
Available to Order
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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
LF909-DNRS-FS
Type
with Flood Detection Sensor, Cast Iron, Flange
Connection Type
Flange
Shut-Off Valve Type
NRS Gate Valve

Technical Documents

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

Product Description

The WATTS Reduced Pressure Zone Assembly: LF909 Large is a Watts RPZ Backflow Preventer featuring a cast iron body and flange connections. It is equipped with an NRS Gate Valve shut-off valve and a Flood Detection Sensor. The manufacturer part number is LF909-DNRS-FS.

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-DNRS-FS reduced pressure zone assembly used for?

The Watts LF909-DNRS-FS is a reduced pressure zone (RPZ) backflow preventer used to protect potable water supplies from cross-connection contamination in commercial, industrial, and municipal applications. Its flood detection sensor provides early warning of discharge events, helping prevent property damage.

What are the specifications of the Watts LF909-DNRS-FS RPZ assembly?

The Watts LF909-DNRS-FS is a large RPZ backflow preventer with a cast iron body and flange connections. It features an NRS gate valve shut-off valve and an integrated flood detection sensor. The manufacturer part number is LF909-DNRS-FS. It is designed for high-flow backflow prevention in demanding water systems.

Where to buy the Watts LF909-DNRS-FS RPZ assembly worldwide?

3G Electric supplies the Watts LF909-DNRS-FS RPZ assembly worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time. We source and deliver this Watts backflow preventer to any international location.

How to install the Watts LF909-DNRS-FS RPZ assembly?

Install the Watts LF909-DNRS-FS in a horizontal position with adequate clearance for testing and maintenance. Ensure flange connections are properly aligned and gasketed. The flood detection sensor should be wired to a monitoring system per local codes. Always follow the manufacturer's installation manual and consult a licensed plumber.

Used in

Common applications for Watts
Industrial burner gas safety systems — Watts HF2000 filters with GF-series seal kits maintain clean, regulated gas supply to burner pilot and main flame controls
Commercial heating and boiler installations — Modular filter assemblies support preventive maintenance and component replacement without full system shutdown
Process gas delivery pipelines — DN25 through DN125 filter bodies accommodate varying flow rates and inlet pressures across manufacturing and chemical processes
Gas pressure regulation benches — Multi-stage Watts filter platforms integrate with pressure reducers and safety shutoff valves in test and calibration environments
Equipment retrofit and upgrade projects — Available connection sizes and seal kits enable adaptation of newer Watts components into legacy gas control systems
Planned maintenance and spare-parts inventory — Filter seal kits allow facilities to stock consumables in advance, reducing downtime during scheduled gas system servicing

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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WATTS Reduced Pressure Zone Assembly: LF909 Large, with Flood Detection Sensor, Cast Iron, Flange (MPN LF909-DNRS-FS)
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