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 model (SKU LF909-DOSY-FS, MPN LF909-DOSY-FS) features a cast iron body with flange…
SKU 3G-OTH-444410
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 model (SKU LF909-DOSY-FS, MPN LF909-DOSY-FS) features a cast iron body with flange connections and includes an OSY gate valve shut-off valve and a flood detection sensor.
Frequently Asked Questions
What is the Watts LF909 RPZ backflow preventer used for?
The Watts LF909 Reduced Pressure Zone Assembly is used to prevent backflow of contaminated water into potable water supplies in commercial, industrial, and municipal systems. It is ideal for high-hazard applications where cross-connection control is critical, such as irrigation, fire protection, and process water lines.
What are the specifications of the Watts LF909-DOSY-FS?
The Watts LF909-DOSY-FS is a large RPZ backflow preventer with a cast iron body and flange connections. It includes an OSY gate valve shut-off valve and a 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 model.
How to install a Watts RPZ backflow preventer with a flood detection sensor?
Install the Watts LF909 in a horizontal position with adequate clearance for testing and maintenance. Ensure the flood detection sensor is wired per local codes and connected to an alarm system. Always follow the manufacturer's instructions and consult a licensed plumber for proper installation and testing.
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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.
