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Watts RK757/757DCDA-CK2-21/2-4 Second Check Module Repair Kit - Repair Kits & Parts for Watts Backflow Preventers
WattsRepair Kits & Parts for Watts Backflow Preventers

Watts RK757/757DCDA-CK2-21/2-4 Second Check Module Repair Kit

The WATTS Backflow Preventer Repair Kits: Second Check Kit (SKU 3G-OTH-436826) is a repair kit for Watts backflow preventers, specifically designed for the 757DCDA series. It includes a Second Check Module and is…

SKU 3G-OTH-436826

Also listed as: RK757757DCDACK22124 · RK757 757DCDA CK2 21 2 4 · RK757-757DCDA-CK2-21-2-4

Brand
Watts
Item
RK757/757DCDA-CK2-21/2-4 Second Check Module Repair Kit
Part Number
RK757/757DCDA-CK2-21/2-4
Category
Repair Kits & Parts for Watts Backflow Preventers
Available to Order
Also known as:RK757/757DCDA-CK2-21/2-4Watts
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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
RK757/757DCDA-CK2-21/2-4
Type
1KYD7/1KYD9/1KYE2, 757/757DCDA, Repair Kit
Includes
Second Check Module
Compatible Valve Size
2-1/2 in to 4 in
Compatible with Series
757DCDA
Compatible with Mfr. Model No.
757DCDA

Technical Documents

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

Product Description

The WATTS Backflow Preventer Repair Kits: Second Check Kit (SKU 3G-OTH-436826) is a repair kit for Watts backflow preventers, specifically designed for the 757DCDA series. It includes a Second Check Module and is compatible with valve sizes from 2-1/2 in to 4 in. The kit is identified by manufacturer part number RK757/757DCDA-CK2-21/2-4 and is compatible with Part No. 1KYE2.

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 second check repair kit used for?

This repair kit is used to replace the second check module in Watts 757DCDA series backflow preventers. It is essential for maintaining backflow prevention in commercial and industrial water systems, ensuring compliance with cross-connection control regulations.

What are the specifications of the Watts RK757/757DCDA-CK2-21/2-4 repair kit?

The Watts RK757/757DCDA-CK2-21/2-4 repair kit includes a second check module and is compatible with valve sizes from 2-1/2 in to 4 in. It is designed for the 757DCDA series and is identified by Part No. 4 757 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, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead times for the RK757/757DCDA-CK2-21/2-4 kit.

How to install the Watts second check repair kit?

To install the Watts second check repair kit, first isolate the backflow preventer and relieve system pressure. Remove the access cover, extract the old second check module, and insert the new module from the kit. Reassemble the cover and test for proper operation per local codes.

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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