Watts Reduced Pressure Zone Assembly: LF909 Large, with Flood Detection Sensor
The Watts LF909 Large is a reduced pressure zone (RPZ) backflow preventer from the Watts RPZ Backflow Preventers product line. This assembly features a cast iron body with flange connections and includes an OSY gate…
SKU 3G-OTH-444409
Also listed as: LF909DOSYFS · LF909 DOSY FS
Local availability & support
- Delivery
- Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
- Payment
- Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.
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Product Description
The Watts LF909 Large is a reduced pressure zone (RPZ) backflow preventer from the Watts RPZ Backflow Preventers product line. This assembly features a cast iron body with flange connections and includes an OSY gate valve shut-off valve and a flood detection sensor, as specified by the manufacturer part number LF909-DOSY-FS.
Frequently Asked Questions
What is the Watts LF909 RPZ backflow preventer used for?
The Watts LF909 Reduced Pressure Zone Assembly is used to protect potable water supplies from backflow contamination in commercial, industrial, and municipal systems. It prevents non-potable water from reversing flow into clean water lines, especially in high-hazard cross-connection applications.
What are the specifications of the Watts LF909-DOSY-FS?
The Watts LF909-DOSY-FS is a large reduced pressure zone assembly with a cast iron body and flange connections. It includes an OSY gate valve shut-off valve and a built-in flood detection sensor. The manufacturer part number is LF909-DOSY-FS, and it is part of the Watts RPZ Backflow Preventers product line.
Where to buy the Watts LF909 RPZ backflow preventer worldwide?
You can source the Watts LF909 RPZ backflow preventer 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 on this assembly.
How to install a Watts LF909 RPZ backflow preventer?
Install the Watts LF909 RPZ assembly in a horizontal position with adequate clearance for testing and maintenance. Ensure flange connections are properly gasketed and bolted. The flood detection sensor should be wired per local codes. Always follow the manufacturer's installation manual and consult a licensed plumber.
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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.
