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Watts LFRK 909-RV 4-6 Relief Valve Repair Kit for Series 909 - Repair Kits & Parts for Watts Backflow Preventers
WattsRepair Kits & Parts for Watts Backflow Preventers

Watts LFRK 909-RV 4-6 Relief Valve Repair Kit for Series 909

The WATTS Relief Valve Repair Kit (SKU LFRK 909-RV 4-6, MPN LFRK 909-RV 4-6) is a repair kit for Watts backflow preventers, compatible with Series 909 and model 4-6 LF909. It includes an RV Disc Assembly and fits…

SKU 3G-OTH-436710

Also listed as: LFRK909RV46 · LFRK 909 RV 4 6 · LFRK-909-RV-4-6

Brand
Watts
Item
LFRK 909-RV 4-6 Relief Valve Repair Kit for Series 909
Category
Repair Kits & Parts for Watts Backflow Preventers
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

Watts
Manufacturer Part Number
LFRK 909-RV 4-6
Type
793PG4/793PG6/793PG7, Repair Kit, 909
LF909
4-6
Includes
RV Disc Assembly
Compatible Valve Size
4 in to 6 in
Compatible with Series
909
Compatible with Mfr. Model No.
4-6 LF909

Technical Documents

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

Product Description

The WATTS Relief Valve Repair Kit (SKU LFRK 909-RV 4-6, MPN LFRK 909-RV 4-6) is a repair kit for Watts backflow preventers, compatible with Series 909 and model 4-6 LF909. It includes an RV Disc Assembly and fits valve sizes from 4 in to 6 in.

Frequently Asked Questions

What is the Watts LFRK 909-RV 4-6 relief valve repair kit used for?

This Watts repair kit is used to service backflow preventers in commercial and industrial water systems. It replaces worn components in Series 909 and model 4-6 LF909 relief valves, restoring proper backflow protection to prevent contamination of potable water supplies.

What are the specifications of the Watts LFRK 909-RV 4-6 repair kit?

The Watts LFRK 909-RV 4-6 repair kit is compatible with valve sizes from 4 in to 6 in and fits Series 909 and model 4-6 LF909 backflow preventers. It includes an RV disc assembly and is identified by MPN LFRK 909-RV 4-6 and part number LF909-DNRS-FS.

Where to buy the Watts LFRK 909-RV 4-6 repair kit worldwide?

3G Electric supplies the Watts LFRK 909-RV 4-6 repair kit to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site, ensuring you receive genuine Watts parts for your backflow preventer maintenance.

How to install the Watts LFRK 909-RV 4-6 relief valve repair kit?

Installation requires depressurizing the system and removing the relief valve cover. Replace the old disc assembly with the included RV disc assembly from the Watts kit, then reassemble and test for proper seating. 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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Compatible alternatives & equivalents

Cross-referenced by specification & description
This relief valve repair kit includes an RV disc assembly for servicing Watts Series 909 backflow preventers. Compatible with valve sizes 2-1/2 in to 3 in and models 793PG1, 793PG2, 793PG3, 793PG5, 909, and LF909. Used in commercial and industrial water systems to replace worn relief valve components
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This relief valve repair kit includes an RV disc assembly for servicing Watts Series 909 backflow preventers. Compatible with valve sizes 2-1/2 in to 3 in and models 793PG1, 793PG2, 793PG3, 793PG5, 909, and LF909. Used in commercial and industrial water systems to replace worn relief valve components
This repair kit includes an RV O-Ring for servicing Watts Series 909 backflow preventers. Compatible with valve sizes 3/4 in to 1 in, it is designed for models such as the 3/4 -1 LF909. The kit restores sealing function in backflow prevention assemblies used in water supply systems
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This repair kit includes an RV O-Ring for servicing Watts Series 909 backflow preventers. Compatible with valve sizes 3/4 in to 1 in, it is designed for models such as the 3/4 -1 LF909. The kit restores sealing function in backflow prevention assemblies used in water supply systems
This repair kit is designed for servicing Watts Series 909 backflow preventers with a 4-inch valve size, including model 4 LF909. It contains a sleeve O-ring to replace worn components and restore proper sealing. Used in commercial and industrial water systems to maintain backflow protection
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This repair kit is designed for servicing Watts Series 909 backflow preventers with a 4-inch valve size, including model 4 LF909. It contains a sleeve O-ring to replace worn components and restore proper sealing. Used in commercial and industrial water systems to maintain backflow protection
This repair kit is designed for servicing Watts LF909 series backflow preventers with valve sizes 2-1/2 in to 3 in. Includes two molded disc assemblies to replace worn components and restore relief valve function. Compatible with models 793PG1, 793PG2, 793PG3, and 793PG5
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This repair kit is designed for servicing Watts LF909 series backflow preventers with valve sizes 2-1/2 in to 3 in. Includes two molded disc assemblies to replace worn components and restore relief valve function. Compatible with models 793PG1, 793PG2, 793PG3, and 793PG5
Repair kit for Watts backflow preventers, compatible with series RK-909 and model 3/4 -1 LF909. Fits valve sizes 3/4 in to 1 in. Includes lubricant for servicing relief valves in water systems
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Repair kit for Watts backflow preventers, compatible with series RK-909 and model 3/4 -1 LF909. Fits valve sizes 3/4 in to 1 in. Includes lubricant for servicing relief valves in water systems
Rubber parts repair kit for Watts 909 Series backflow preventers. Includes RV disc assembly. Compatible with valve sizes 2-1/2 in to 3 in and models 793PG1, 793PG2, 793PG3, 793PG5, and 909. Used to replace worn components in backflow prevention assemblies
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Rubber parts repair kit for Watts 909 Series backflow preventers. Includes RV disc assembly. Compatible with valve sizes 2-1/2 in to 3 in and models 793PG1, 793PG2, 793PG3, 793PG5, and 909. Used to replace worn components in backflow prevention assemblies

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