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Watts LFRK 909-RV 2-1/2-3 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 2-1/2-3 Relief Valve Repair Kit for Series 909

The Watts Relief Valve Repair Kit (SKU LFRK 909-RV 2-1/2-3, MPN LFRK 909-RV 2-1/2-3) is a repair kit for Watts backflow preventers, including an RV disc assembly. It is compatible with 2-1/2 in to 3 in valve sizes…

SKU 3G-OTH-436698

Also listed as: LFRK909RV2123 · LFRK 909 RV 2 1 2 3 · LFRK-909-RV-2-1-2-3

Brand
Watts
Item
LFRK 909-RV 2-1/2-3 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 2-1/2-3
Type
793PG1/793PG2/793PG3/793PG5, 909
LF909
2 1/2-3
Includes
RV Disc Assembly
Compatible Valve Size
2-1/2 in to 3 in
Compatible with Series
909
Compatible with Mfr. Model No.
2-1/2-3 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 2-1/2-3, MPN LFRK 909-RV 2-1/2-3) is a repair kit for Watts backflow preventers, including an RV disc assembly. It is compatible with 2-1/2 in to 3 in valve sizes and the Watts Series 909, specifically model 2-1/2-3 LF909 (part 793PG1).

Frequently Asked Questions

What is the Watts Relief Valve Repair Kit used for?

The Watts Relief Valve Repair Kit is used to service backflow preventers, specifically the Watts Series 909 model 2-1/2-3 LF909. It includes an RV disc assembly to replace worn relief valve components, ensuring proper backflow protection in commercial and industrial water systems.

What are the specifications of the Watts Relief Valve Repair Kit?

The Watts Relief Valve Repair Kit (MPN LFRK 909-RV 2-1/2-3) includes an RV disc assembly. It is compatible with valve sizes 2-1/2 in to 3 in and the Watts Series 909, specifically model 2-1/2-3 LF909 (part LF909-DOSY-FS). The SKU is 3G-OTH-436698.

Where to buy the Watts Relief Valve Repair Kit worldwide?

You can source the Watts Relief Valve Repair Kit 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 repair kit.

How to install the Watts Relief Valve Repair Kit?

To install the Watts Relief Valve Repair Kit, first depressurize and drain the backflow preventer. Remove the old relief valve assembly and replace it with the new RV disc assembly from the kit. Reassemble the valve and test for proper operation per Watts guidelines. Always follow local plumbing codes.

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 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
Watts
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
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
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
Repair kit for Watts Series 909 backflow preventers, compatible with valve sizes 2-1/2 in to 3 in and model 21/2 909 NRS. Includes diaphragm for servicing the relief valve assembly. Used in commercial and industrial water systems to maintain backflow prevention
Watts
Repair kit for Watts Series 909 backflow preventers, compatible with valve sizes 2-1/2 in to 3 in and model 21/2 909 NRS. Includes diaphragm for servicing the relief valve assembly. Used in commercial and industrial water systems to maintain backflow prevention
Repair kit for Watts LF909 backflow preventers, compatible with valve sizes 2-1/2 to 3 inches. Includes flow tube O-ring. Used to replace worn components in backflow preventers for potable water systems
Watts
Repair kit for Watts LF909 backflow preventers, compatible with valve sizes 2-1/2 to 3 inches. Includes flow tube O-ring. Used to replace worn components in backflow preventers for potable water 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
Watts
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 includes a second check module for Watts backflow preventers. It is compatible with valve sizes 2-1/2 in to 4 in and fits Series 957 and 957RPDA models. Used to restore check-valve function in backflow prevention assemblies
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This repair kit includes a second check module for Watts backflow preventers. It is compatible with valve sizes 2-1/2 in to 4 in and fits Series 957 and 957RPDA models. Used to restore check-valve function in backflow prevention assemblies
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This repair kit includes two disc assemblies for restoring sealing performance in Watts Series 009 backflow preventers. Compatible with valve sizes 3/4 to 1 inch and model 009-M1-QTS. Used for maintenance in water supply systems to ensure backflow protection
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Repair kit for Watts backflow preventers, includes disc holder. Compatible with 2-inch valve sizes in Series RK-LF719 and Model LF719. Used for servicing first or second check valves in cross-connection control systems
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Repair kit for Watts backflow preventers, includes disc holder. Compatible with 2-inch valve sizes in Series RK-LF719 and Model LF719. Used for servicing first or second check valves in cross-connection control systems
Repair kit for Watts 009 series backflow preventers. Includes seat. Compatible with 3/4-inch valve sizes, models 3/4 009M2 and LF009M2. Used to restore relief-valve function in backflow prevention assemblies
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Repair kit for Watts 009 series backflow preventers. Includes seat. Compatible with 3/4-inch valve sizes, models 3/4 009M2 and LF009M2. Used to restore relief-valve function in backflow prevention assemblies
Repair kit for first or second check valves in Watts backflow preventers. Includes cover O-ring. Compatible with 3/4 in valve size and models LF719, 719/LF719, and RK-LF719 series
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Repair kit for first or second check valves in Watts backflow preventers. Includes cover O-ring. Compatible with 3/4 in valve size and models LF719, 719/LF719, and RK-LF719 series
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Repair kit for Watts 009M3 backflow preventers, compatible with 3/4 in valve size. Includes two seat O-rings for restoring sealing function in backflow prevention assemblies
This repair kit is designed for servicing Watts Series 909 and model 4-6 LF909 backflow preventers. It includes an RV disc assembly and is compatible with valve sizes from 4 to 6 inches. Used in commercial and industrial water systems to replace worn relief valve components and maintain backflow protection
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This repair kit is designed for servicing Watts Series 909 and model 4-6 LF909 backflow preventers. It includes an RV disc assembly and is compatible with valve sizes from 4 to 6 inches. Used in commercial and industrial water systems to replace worn relief valve components and maintain backflow protection