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Watts Backflow Preventer Repair Kit: Check Rubber Parts Kit, 1KYD7/1KYD9/1KYE2 - Repair Kits & Parts for Watts Backflow Preventers
WattsRepair Kits & Parts for Watts Backflow Preventers

Watts Backflow Preventer Repair Kit: Check Rubber Parts Kit, 1KYD7/1KYD9/1KYE2

The WATTS Backflow Preventer Repair Kit: Check Rubber Parts Kit (SKU 1RCX1, MPN RK757-757-DCDA-RC4) is a repair kit for Watts backflow preventers. It includes an O-ring and is compatible with valve sizes 2-1/2 in to…

SKU 3G-OTH-436679

Brand
Watts
Item
Backflow Preventer Repair Kit: Check Rubber Parts Kit, 1KYD7/1KYD9/1KYE2
Category
Repair Kits & Parts for Watts Backflow Preventers
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Technical Specifications

Watts
Manufacturer Part Number
RK757-757-DCDA-RC4
Type
1KYD7/1KYD9/1KYE2, Repair Kit
Includes
O-Ring
Compatible Valve Size
2-1/2 in to 4 in
Compatible with Series
757DCDA
Compatible with Mfr. Model No.
21/2 757 OSY
Compatible with Grainger Part No.
1KYD7
View Full Spec Sheet

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

Product Description

The WATTS Backflow Preventer Repair Kit: Check Rubber Parts Kit (SKU 1RCX1, MPN RK757-757-DCDA-RC4) is a repair kit for Watts backflow preventers. It includes an O-ring and is compatible with valve sizes 2-1/2 in to 4 in, the 757DCDA series, and model 21/2 757 OSY.

Frequently Asked Questions

What is the Watts backflow preventer repair kit used for?

This Watts repair kit (MPN RK757-757-DCDA-RC4) is used to replace worn check rubber parts in Watts 757DCDA series backflow preventers. It helps maintain backflow prevention in commercial and industrial water systems, ensuring compliance with plumbing codes and preventing contamination of potable water supplies.

What are the specifications of the Watts backflow preventer repair kit?

The Watts repair kit (SKU 1RCX1) includes an O-ring and is compatible with valve sizes 2-1/2 in to 4 in. It fits the Watts 757DCDA series and model 21/2 757 OSY. The manufacturer part number is RK757-757-DCDA-RC4. It is also compatible with Grainger part number 1KYD7.

Where to buy Watts backflow preventer repair kits worldwide?

3G Electric supplies Watts backflow preventer repair kits worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on the RK757-757-DCDA-RC4 kit.

How to install the Watts backflow preventer repair kit?

To install the Watts repair kit, first depressurize and isolate the backflow preventer. Remove the check valve assembly, replace the old rubber parts with the new O-ring and components from the RK757-757-DCDA-RC4 kit, then reassemble. Follow Watts' generic installation guidelines for 757DCDA series devices to ensure proper sealing.

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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