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Watts RK 957/957RPDA-CK1 6 First Check Repair Kit for 6 in Backflow Preventers - Repair Kits & Parts for Watts Backflow Preventers
WattsRepair Kits & Parts for Watts Backflow Preventers

Watts RK 957/957RPDA-CK1 6 First Check Repair Kit for 6 in Backflow Preventers

The WATTS Backflow Preventer Repair Kits: First Check Kit (MPN RK 957/957RPDA-CK1 6) is a repair kit for Watts backflow preventers, compatible with a 6 in valve size. It includes a Check Module O-Ring and is designed…

SKU 3G-OTH-436788

Also listed as: RK957957RPDACK16 · RK 957 957RPDA CK1 6 · RK-957-957RPDA-CK1-6

Brand
Watts
Item
RK 957/957RPDA-CK1 6 First Check Repair Kit for 6 in Backflow Preventers
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
RK 957/957RPDA-CK1 6
Type
6AUW5, Repair Kit
Includes
Check Module O-Ring
Compatible Valve Size
6 in
Compatible with Series
957
Compatible with Mfr. Model No.
757

Technical Documents

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

Product Description

The WATTS Backflow Preventer Repair Kits: First Check Kit (MPN RK 957/957RPDA-CK1 6) is a repair kit for Watts backflow preventers, compatible with a 6 in valve size. It includes a Check Module O-Ring and is designed for use with Series 957 and Model 757 backflow preventers.

Frequently Asked Questions

What is the Watts backflow preventer first check repair kit used for?

The Watts first check repair kit (RK 957/957RPDA-CK1 6) is used to replace worn check module components in Watts Series 957 and Model 757 backflow preventers. It includes a check module O-ring and is designed for 6-inch valve sizes, helping maintain backflow prevention in commercial water systems.

What are the specifications of the Watts RK 957/957RPDA-CK1 6 repair kit?

This Watts repair kit is compatible with a 6-inch valve size and fits Series 957 and Model 757 backflow preventers. It includes a check module O-ring. The manufacturer part number is RK 957/957RPDA-CK1 6, and it is also compatible with part number 957 OSY 6.

Where to buy Watts backflow preventer repair kits worldwide?

You can source Watts backflow preventer repair kits, including the RK 957/957RPDA-CK1 6, through 3G Electric. As a global industrial equipment distributor, 3G Electric handles full logistics, customs clearance, and delivery to worldwide locations for this Watts repair kit.

How to install the Watts first check repair kit?

To install the Watts first check repair kit, first isolate the backflow preventer and relieve system pressure. Remove the access cover, extract the old check module, and replace it with the new kit components, including the check module O-ring. Reassemble and test per Watts guidelines.

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
WATTS Backflow Preventer Repair Kits: First Check Kit, 757 OSY 6, 6 in Compatible Valve Size, Repair Kit (MPN RK 757/757DCDA-CK1 6)
Watts
WATTS Backflow Preventer Repair Kits: First Check Kit, 757 OSY 6, 6 in Compatible Valve Size, Repair Kit (MPN RK 757/757DCDA-CK1 6)
WATTS Backflow Preventer Repair Kits: Second Check Kit, 957 OSY 6, 6 in Compatible Valve Size (MPN RK 957/957RPDA-CK2 6)
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WATTS Backflow Preventer Repair Kits: Second Check Kit, 957 OSY 6, 6 in Compatible Valve Size (MPN RK 957/957RPDA-CK2 6)
WATTS Backflow Preventer Repair Kits: First Check Kit, 757 OSY 8, 8 in Compatible Valve Size, Repair Kit (MPN RK 757/757DCDA-CK1 8)
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WATTS Backflow Preventer Repair Kits: First Check Kit, 757 OSY 8, 8 in Compatible Valve Size, Repair Kit (MPN RK 757/757DCDA-CK1 8)
WATTS Backflow Preventer Repair Kits: Complete Rubber Parts Kit, 957 OSY 6, 6 in Compatible Valve Size (MPN RK 957/957RPDA-RT 6)
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WATTS Backflow Preventer Repair Kits: Complete Rubber Parts Kit, 957 OSY 6, 6 in Compatible Valve Size (MPN RK 957/957RPDA-RT 6)
This repair kit includes a second check module for Watts 757DCDA series backflow preventers. Compatible with 6-inch valve assemblies, it is used to replace worn or failed check modules in commercial water systems to maintain backflow protection
Watts
This repair kit includes a second check module for Watts 757DCDA series backflow preventers. Compatible with 6-inch valve assemblies, it is used to replace worn or failed check modules in commercial water systems to maintain backflow protection
This repair kit includes a second check module for use with Watts 757DCDA series backflow preventers. Compatible with 8-inch valve sizes and Series RK-757. Used to replace the second check assembly in backflow preventers for maintaining proper flow direction in water systems
Watts
This repair kit includes a second check module for use with Watts 757DCDA series backflow preventers. Compatible with 8-inch valve sizes and Series RK-757. Used to replace the second check assembly in backflow preventers for maintaining proper flow direction in water systems

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