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Watts Backflow Preventer Repair Kits: First Check Kit, 6AUW3, 8 in Compatible Valve Size - Repair Kits & Parts for Watts Backflow Preventers

WattsRepair Kits & Parts for Watts Backflow Preventers

Watts Backflow Preventer Repair Kits: First Check Kit, 6AUW3, 8 in Compatible Valve Size

The WATTS Backflow Preventer Repair Kits: First Check Kit (SKU 844GE5) is a repair kit designed for Watts backflow preventers. It includes a Red Silicone Disc Elastomer and is compatible with an 8 in valve size…

SKU 3G-OTH-436681

Brand

Watts

Item

Backflow Preventer Repair Kits: First Check Kit, 6AUW3, 8 in Compatible Valve Size

Category

Repair Kits & Parts for Watts Backflow Preventers

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Technical Specifications

Watts

Manufacturer Part Number

RK 757/757DCDA-CK1 8 

Type

6AUW3, Repair Kit 

Includes

Red Silicone Disc Elastomer 

Compatible Valve Size

8 in 

Compatible with Series

757

Compatible with Mfr. Model No.

757DCDA

Compatible with Grainger Part No.

6AUW3 

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Watts Products

3G Electric (S) Pte. Ltd. — Singapore

Product Description

The WATTS Backflow Preventer Repair Kits: First Check Kit (SKU 844GE5) is a repair kit designed for Watts backflow preventers. It includes a Red Silicone Disc Elastomer and is compatible with an 8 in valve size, Series 757, and Mfr. Model No. 757DCDA. The manufacturer part number is RK 757/757DCDA-CK1 8.

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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WATTS Backflow Preventer Repair Kits: Second Check Kit, 6AUW3, 8 in Compatible Valve Size (MPN RK 757/757DCDA-CK2 8). Key specifications — Compatible Valve Size: 8 in; Compatible with Grainger Part No.: 6AUW3; Compatible with Series: RK-757; Compatible with Mfr. Model No.: 757DCDA; Includes: Second Check Module.

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WATTS Backflow Preventer Repair Kits: First or Second Check Kit, 8 in to 12 in Compatible Valve Size (MPN RK 774/774DCDA-CK2 8-12). Key specifications — Compatible Valve Size: 8 in to 12 in; Compatible with Grainger Part No.: 36JC77; Compatible with Series: 774DCDA; Compatible with Mfr. Model No.: 774; Includes: (2) Cam Check with Check O-Rings.

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WATTS First Check Valve Repair Kit: First Check Valve Repair Kit, 793PG1/793PG2/793PG3/793PG5 (MPN 909 2-1/2 - 3 1st Check Kit). Key specifications — Compatible Valve Size: 2-1/2 in to 3 in; Compatible with Grainger Part No.: 793PG1; Compatible with Series: RK-LF909; Compatible with Mfr. Model No.: 2-1/2-3 LF909; Includes: Cover O-Ring.

WATTS Backflow Preventer Repair Kits: First or Second Check Kit, 36JC58/36JC64, 709/LF709, RK-LF709 (MPN LFRK 709-CK4 10). Key specifications — Compatible Valve Size: 10 in; Compatible with Grainger Part No.: 36JC58; Compatible with Series: RK-LF709; Compatible with Mfr. Model No.: LF709; Includes: Disc and Spring Assembly.

WATTS Backflow Preventer Repair Kits: First or Second Check Kit, 36JC58/36JC64, 709/LF709, RK-LF709 (MPN LFRK 709-CK4 10). Key specifications — Compatible Valve Size: 10 in; Compatible with Grainger Part No.: 36JC58; Compatible with Series: RK-LF709; Compatible with Mfr. Model No.: LF709; Includes: Disc and Spring Assembly.

WATTS Backflow Preventer Repair Kits: Complete Rubber Parts Kit, 793HG1/793HG2/818DE6/818SE8, RK-007 (MPN RK 007M2-RT 1-1/4-1-1/2). Key specifications — Compatible Valve Size: 1-1/4 in to 1-1/2 in; Compatible with Grainger Part No.: 818SE8; Compatible with Series: RK-007; Compatible with Mfr. Model No.: 1-1/4 LF007M2; Includes: Cover O-Ring.

WATTS Backflow Preventer Repair Kits: Complete Rubber Parts Kit, 793HG1/793HG2/818DE6/818SE8, RK-007 (MPN RK 007M2-RT 1-1/4-1-1/2). Key specifications — Compatible Valve Size: 1-1/4 in to 1-1/2 in; Compatible with Grainger Part No.: 818SE8; Compatible with Series: RK-007; Compatible with Mfr. Model No.: 1-1/4 LF007M2; Includes: Cover O-Ring.