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Watts Relief Valve Repair Kit: Relief Valve Repair Kit, LF909-DNRS-FS/LF909-DNRS-FS - Repair Kits & Parts for Watts Backflow Preventers
WattsRepair Kits & Parts for Watts Backflow Preventers

Watts Relief Valve Repair Kit: Relief Valve Repair Kit, LF909-DNRS-FS/LF909-DNRS-FS

This Watts Relief Valve Repair Kit is a repair kit for Watts backflow preventers, designed for use with Series 909 models. It includes a sleeve O-ring and is compatible with a 4-inch valve size, specifically for the…

SKU 3G-OTH-436706

Also listed as: 9094ReliefValve · 909-4-Relief-Valve

Brand
Watts
Item
Relief Valve Repair Kit: Relief Valve Repair Kit, LF909-DNRS-FS/LF909-DNRS-FS
Category
Repair Kits & Parts for Watts Backflow Preventers
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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.

Technical Specifications

Watts
Manufacturer Part Number
909 4 Relief Valve
Type
793PG4/793PG6
Includes
Sleeve O-Ring
Compatible Valve Size
4 in
Compatible with Series
909
Compatible with Mfr. Model No.
4 LF909

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

Product Description

This Watts Relief Valve Repair Kit is a repair kit for Watts backflow preventers, designed for use with Series 909 models. It includes a sleeve O-ring and is compatible with a 4-inch valve size, specifically for the 4 LF909 model (part number 793PG4).

Frequently Asked Questions

What is a Watts relief valve repair kit used for?

A Watts relief valve repair kit is used to service backflow preventers, specifically the Series 909 models. It replaces worn internal components like the sleeve O-ring to restore proper sealing and prevent leakage. This kit is essential for maintaining backflow protection in commercial and industrial water systems.

What are the specifications of the Watts 909 4 Relief Valve repair kit?

This Watts repair kit is compatible with a 4-inch valve size and fits the Series 909 backflow preventer, including model 4 LF909. It includes a sleeve O-ring and is identified by manufacturer part number 909 4 Relief Valve. The kit type is LF909-DNRS-FS/LF909-DNRS-FS, and it corresponds to part number LF909-DNRS-FS.

Where to buy Watts relief valve repair kits worldwide?

Watts relief valve repair kits are available to order through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact 3G Electric for sourcing and pricing on this Watts repair kit for Series 909 backflow preventers.

How to install a Watts relief valve repair kit?

To install a Watts relief valve repair kit, first depressurize the backflow preventer and remove the relief valve assembly. Replace the old sleeve O-ring with the new one from the kit, ensuring proper seating. Reassemble the valve and test for leaks. Always follow the manufacturer's instructions for your specific Series 909 model.

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 repair kits & parts for watts 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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