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Watts Backflow Preventer Repair Kits: Second Check Kit, 1RCX3/1RCX5/1RCX7, 957/957RPDA - Repair Kits & Parts for Watts Backflow Preventers

WattsRepair Kits & Parts for Watts Backflow Preventers

Watts Backflow Preventer Repair Kits: Second Check Kit, 1RCX3/1RCX5/1RCX7, 957/957RPDA

The WATTS Backflow Preventer Repair Kits: Second Check Kit is a repair kit for Watts backflow preventers, including a second check module. It is compatible with valve sizes 2-1/2 in to 4 in and is designed for use…

SKU 3G-OTH-436716

Brand

Watts

Item

Backflow Preventer Repair Kits: Second Check Kit, 1RCX3/1RCX5/1RCX7, 957/957RPDA

Category

Repair Kits & Parts for Watts Backflow Preventers

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Technical Specifications

Watts

Manufacturer Part Number

RK957/957RPDA-CK2-21/2-4 

Type

1RCX3/1RCX5/1RCX7, 957/957RPDA, Repair Kit 

Includes

Second Check Module 

Compatible Valve Size

2-1/2 in to 4 in 

Compatible with Series

RK-957 

Compatible with Mfr. Model No.

957

Compatible with Grainger Part No.

1RCX3 

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Watts Products

3G Electric (S) Pte. Ltd. — Singapore

Product Description

The WATTS Backflow Preventer Repair Kits: Second Check Kit is a repair kit for Watts backflow preventers, including a second check module. It is compatible with valve sizes 2-1/2 in to 4 in and is designed for use with Series RK-957 and manufacturer model number 957. The kit's manufacturer part number is RK957/957RPDA-CK2-21/2-4.

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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WATTS Backflow Preventer Repair Kits: Second Check Kit, 809GC6, 3/4 in Compatible Valve Size, RK-919 (MPN RK 919-CK2-3/4). Key specifications — Compatible Valve Size: 3/4 in; Compatible with Grainger Part No.: 809GC6; Compatible with Series: RK-919; Compatible with Mfr. Model No.: 919; Includes: Check Assembly.

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