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Watts Backflow Preventer Repair Kit: Relief Valve Kit, 957-OSY 21/2/957-OSY3/957OSY4 - Repair Kits & Parts for Watts Backflow Preventers
WattsRepair Kits & Parts for Watts Backflow Preventers

Watts Backflow Preventer Repair Kit: Relief Valve Kit, 957-OSY 21/2/957-OSY3/957OSY4

The WATTS Backflow Preventer Repair Kit: Relief Valve Kit (SKU 3G-OTH-436830) is a repair kit for Watts backflow preventers, compatible with Series 957 and Model No. 957-OSY 21/2. It includes a Piston Assembly and…

SKU 3G-OTH-436830

Also listed as: RK 957 · RK-957

Brand
Watts
Item
Backflow Preventer Repair Kit: Relief Valve Kit, 957-OSY 21/2/957-OSY3/957OSY4
Category
Repair Kits & Parts for Watts Backflow Preventers
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

Watts
Manufacturer Part Number
RK957
Type
1RCX3/1RCX5/1RCX7, Repair Kit, 957
Includes
Piston Assembly
Compatible Valve Size
2-1/2 in to 4 in
Compatible with Series
957
Compatible with Mfr. Model No.
957-OSY 21/2

Technical Documents

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

Product Description

The WATTS Backflow Preventer Repair Kit: Relief Valve Kit (SKU 3G-OTH-436830) is a repair kit for Watts backflow preventers, compatible with Series 957 and Model No. 957-OSY 21/2. It includes a Piston Assembly and fits valve sizes from 2-1/2 in to 4 in. This kit is designed for use with Part No. 1RCX5 and carries manufacturer part number RK957.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the Watts backflow preventer repair kit RK957 used for?

The Watts RK957 relief valve repair kit is used to service Watts Series 957 backflow preventers. It includes a piston assembly and is designed for valves sized 2-1/2 in to 4 in. This kit helps maintain backflow prevention in commercial water systems, ensuring compliance with cross-connection control regulations.

What are the specifications of the Watts RK957 repair kit?

The Watts RK957 repair kit is compatible with Series 957 backflow preventers and model 957-OSY 21/2. It fits valve sizes from 2-1/2 in to 4 in and includes a piston assembly. The manufacturer part number is RK957, and it is compatible with part number 957-OSY3.

Where to buy Watts backflow preventer repair kit RK957 worldwide?

3G Electric supplies the Watts RK957 repair kit worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time. We source and deliver genuine Watts repair parts for backflow preventers.

How to install the Watts RK957 relief valve repair kit?

To install the Watts RK957 kit, first depressurize the backflow preventer and drain the valve. Remove the old relief valve assembly and replace it with the new piston assembly included in the kit. Reassemble the valve and test for proper operation. Always follow the manufacturer's instructions for your specific Watts Series 957 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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