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Watts RK 757/757DCDA-CK2 8 Second Check Module Repair Kit - Repair Kits & Parts for Watts Backflow Preventers
WattsRepair Kits & Parts for Watts Backflow Preventers

Watts RK 757/757DCDA-CK2 8 Second Check Module Repair Kit

The WATTS Backflow Preventer Repair Kits: Second Check Kit (SKU 3G-OTH-436683) is a repair kit for Watts backflow preventers, including a Second Check Module. It is compatible with an 8 in valve size, Series RK-757…

SKU 3G-OTH-436683

Also listed as: RK757757DCDACK28 · RK 757 757DCDA CK2 8 · RK-757-757DCDA-CK2-8

Brand
Watts
Item
RK 757/757DCDA-CK2 8 Second Check Module Repair Kit
Part Number
RK 757/757DCDA-CK2 8
Category
Repair Kits & Parts for Watts Backflow Preventers
Available to Order
Also known as:RK 757/757DCDA-CK2 8Watts
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Technical Specifications

Watts
Manufacturer Part Number
RK 757/757DCDA-CK2 8
Type
6AUW3
Includes
Second Check Module
Compatible Valve Size
8 in
Compatible with Series
RK-757
Compatible with Mfr. Model No.
757DCDA

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3G Electric (S) Pte. Ltd. — Singapore

Product Description

The WATTS Backflow Preventer Repair Kits: Second Check Kit (SKU 3G-OTH-436683) is a repair kit for Watts backflow preventers, including a Second Check Module. It is compatible with an 8 in valve size, Series RK-757, and Mfr. Model No. 757DCDA, with Manufacturer Part Number RK 757/757DCDA-CK2 8.

Frequently Asked Questions

What is the Watts backflow preventer second check kit used for?

The Watts backflow preventer second check kit is used to repair the second check valve assembly in Watts 757DCDA series backflow preventers. It is essential for maintaining backflow protection in commercial and industrial water systems, ensuring compliance with plumbing codes by preventing contaminated water from flowing backward into the potable water supply.

What are the specifications of the Watts RK 757/757DCDA-CK2 8 second check kit?

The Watts RK 757/757DCDA-CK2 8 second check kit includes a second check module and is compatible with an 8 in valve size. It is designed for use with Watts Series RK-757 and Mfr. Model No. 757DCDA. The manufacturer part number is RK 757/757DCDA-CK2 8, and it is also compatible with Part No. 757 OSY 8.

Where to buy Watts backflow preventer repair kits worldwide?

You can source Watts backflow preventer repair kits, such as the RK 757/757DCDA-CK2 8 second check kit, through 3G Electric. As a global industrial equipment distributor since 1990, 3G Electric handles full logistics, customs clearance, and delivery to worldwide destinations, ensuring you receive genuine Watts components for your backflow prevention system.

How to install a Watts second check kit in a backflow preventer?

To install a Watts second check kit, first isolate the backflow preventer and relieve system pressure. Remove the access cover and existing second check assembly. Insert the new second check module from the kit, ensuring proper orientation. Reassemble the cover and test the assembly per local codes. Always follow Watts' installation instructions for the 757DCDA series to ensure correct function.

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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