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Watts Backflow Preventer Repair Kits: Total Relief Valve Kit, 1RCX3/1RCX5/1RCX7/6AUW5 - Repair Kits & Parts for Watts Backflow Preventers
WattsRepair Kits & Parts for Watts Backflow Preventers

Watts Backflow Preventer Repair Kits: Total Relief Valve Kit, 1RCX3/1RCX5/1RCX7/6AUW5

The Watts Total Relief Valve Kit (SKU 844GK3) is a repair kit for Watts backflow preventers, including a complete relief valve assembly. It is compatible with the RK-957 series and model 957RPDA, and fits valve sizes…

SKU 3G-OTH-436877

Brand
Watts
Item
Backflow Preventer Repair Kits: Total Relief Valve Kit, 1RCX3/1RCX5/1RCX7/6AUW5
Category
Repair Kits & Parts for Watts Backflow Preventers
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Technical Specifications

Watts
Manufacturer Part Number
RK957/957RPDA-VT 21/2-10
Type
1RCX3/1RCX5/1RCX7/6AUW5, 957/957RPDA
Includes
Complete Relief Valve Assembly
Compatible Valve Size
2-1/2 in to 4 in
Compatible with Series
RK-957
Compatible with Mfr. Model No.
957RPDA
Compatible with Grainger Part No.
6AUW5
View Full Spec Sheet

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

Product Description

The Watts Total Relief Valve Kit (SKU 844GK3) is a repair kit for Watts backflow preventers, including a complete relief valve assembly. It is compatible with the RK-957 series and model 957RPDA, and fits valve sizes from 2-1/2 in to 4 in.

Frequently Asked Questions

What is the Watts Total Relief Valve Kit used for?

The Watts Total Relief Valve Kit is used to repair backflow preventers in commercial and industrial water systems. It replaces the complete relief valve assembly on Watts 957 and 957RPDA series models, ensuring proper backflow protection and compliance with plumbing codes.

What are the specifications of the Watts RK957/957RPDA-VT repair kit?

The Watts RK957/957RPDA-VT repair kit includes a complete relief valve assembly. It is compatible with valve sizes from 2-1/2 in to 4 in, fits the RK-957 series and model 957RPDA, and corresponds to Grainger part number 6AUW5. The manufacturer part number is RK957/957RPDA-VT 21/2-10.

Where to buy Watts backflow preventer repair kits worldwide?

You can source Watts backflow preventer repair kits worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on the RK957/957RPDA-VT kit.

How to install the Watts total relief valve kit on a backflow preventer?

To install the Watts total relief valve kit, first depressurize and drain the system. Remove the old relief valve assembly from the backflow preventer body. Install the new complete relief valve assembly from the kit, ensuring proper alignment and seal. Follow Watts generic installation guidelines for torque and testing.

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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