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Watts RK757-757-DCDA-RC4 Repair Kit for 757DCDA Backflow Preventers - Repair Kits & Parts for Watts Backflow Preventers
WattsRepair Kits & Parts for Watts Backflow Preventers

Watts RK757-757-DCDA-RC4 Repair Kit for 757DCDA Backflow Preventers

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

SKU 3G-OTH-436679

Also listed as: RK757757DCDARC4 · RK757 757 DCDA RC4

Brand
Watts
Item
RK757-757-DCDA-RC4 Repair Kit for 757DCDA Backflow Preventers
Part Number
RK757-757-DCDA-RC4
Category
Repair Kits & Parts for Watts Backflow Preventers
Available to Order
Also known as:RK757-757-DCDA-RC4Watts
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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
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

Technical Documents

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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 RK757-757-DCDA-RC4, 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 3G-OTH-436679) 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 part number 21/2 757 OSY.

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
Commercial plumbing – Watts standard capacity water pressure regulators (3/8 LF 26AB) for stabilizing incoming water pressure
Industrial steam systems – Watts 152A series steam pressure regulators for pressure reduction in process and heating lines
Cross-connection control – Watts 757 double check backflow preventers for commercial and industrial water supply protection
Boiler safety – Watts ASME Section XIII temperature and pressure relief valves for overpressure protection in heating systems
Hydronic heating – Watts CP16 pilot-operated pressure regulators for maintaining consistent pressure in steam or water loops
Water hammer mitigation – Watts LF15M2-A water hammer arrestors for absorbing surges in quick-closing valve applications
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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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