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WATTS Backflow Preventer Repair Kits: Second Check Kit - Repair Kits & Parts for Watts Backflow Preventers
WattsRepair Kits & Parts for Watts Backflow Preventers

WATTS Backflow Preventer Repair Kits: Second Check Kit

The WATTS Backflow Preventer Repair Kits: Second Check Kit (SKU 844GJ1, MPN RK 994/994RPDA-CK2 6) is a repair kit for Watts backflow preventers. It includes an O-Ring Groove Seal and is compatible with a 6-inch valve…

SKU 3G-OTH-436761

Brand
Watts
Item
Backflow Preventer Repair Kits: Second Check Kit
Category
Repair Kits & Parts for Watts Backflow Preventers
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Technical Specifications

Watts
Includes
O-Ring Groove Seal
Compatible Valve Size
6 in
Compatible with Series
994
Manufacturer Part Number
RK 994/994RPDA-CK2 6
Compatible with Mfr. Model No.
994
Compatible with Grainger Part No.
36JD28
View Full Spec Sheet

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

Product Description

The WATTS Backflow Preventer Repair Kits: Second Check Kit (SKU 844GJ1, MPN RK 994/994RPDA-CK2 6) is a repair kit for Watts backflow preventers. It includes an O-Ring Groove Seal and is compatible with a 6-inch valve size, Series 994, and Model 994.

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: First Check Kit, 36JD28, 6 in Compatible Valve Size (MPN RK 994/994RPDA-CK1 6). Key specifications — Compatible Valve Size: 6 in; Compatible with Grainger Part No.: 36JD28; Compatible with Series: 994RPDA; Compatible with Mfr. Model No.: 994; Includes: Seat.
WATTS Backflow Preventer Repair Kits: Second Check Kit, 36JD29/36JD30, 994/994RPDA, Repair Kit (MPN RK 994/994RPDA-CK2 8-10). Key specifications — Compatible Valve Size: 8 in to 10 in; Compatible with Grainger Part No.: 36JD29; Compatible with Series: 994RPDA; Compatible with Mfr. Model No.: 994; Includes: Cam Arm.
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WATTS Backflow Preventer Repair Kits: First Check Kit, 36JD29/36JD30, 994/994RPDA, Repair Kit (MPN RK 994/994RPDA-CK1 8-10). Key specifications — Compatible Valve Size: 8 in to 10 in; Compatible with Grainger Part No.: 36JD30; Compatible with Series: RK-994; Compatible with Mfr. Model No.: 994RPDA; Includes: Spring.
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WATTS Backflow Preventer Repair Kits: First Check Kit, 36JD29/36JD30, 994/994RPDA, Repair Kit (MPN RK 994/994RPDA-CK1 8-10). Key specifications — Compatible Valve Size: 8 in to 10 in; Compatible with Grainger Part No.: 36JD30; Compatible with Series: RK-994; Compatible with Mfr. Model No.: 994RPDA; Includes: Spring.
WATTS Backflow Preventer Repair Kits: First Check Kit, 36JD25/36JD26/36JD27/6AUW9, 994/994RPDA (MPN RK994/994RPDA-CK1-21/2-4). Key specifications — Compatible Valve Size: 2-1/2 in to 4 in; Compatible with Grainger Part No.: 36JD25; Compatible with Series: 994RPDA; Compatible with Mfr. Model No.: 994; Includes: Cam Arm.
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WATTS Backflow Preventer Repair Kits: First Check Kit, 36JD25/36JD26/36JD27/6AUW9, 994/994RPDA (MPN RK994/994RPDA-CK1-21/2-4). Key specifications — Compatible Valve Size: 2-1/2 in to 4 in; Compatible with Grainger Part No.: 36JD25; Compatible with Series: 994RPDA; Compatible with Mfr. Model No.: 994; Includes: Cam Arm.
WATTS Backflow Preventer Repair Kits: Second Check Kit, 36JD25/36JD26/36JD27/6AUW9, 994/994RPDA (MPN RK994/994RPDA-CK2-21/2-4). Key specifications — Compatible Valve Size: 2-1/2 in to 4 in; Compatible with Grainger Part No.: 6AUW9; Compatible with Series: RK-994; Compatible with Mfr. Model No.: 994RPDA; Includes: Spring.
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WATTS Backflow Preventer Repair Kits: Second Check Kit, 809GC6, 3/4 in Compatible Valve Size, RK-919 (MPN RK 919-CK2-3/4). Key specifications — Compatible Valve Size: 3/4 in; Compatible with Grainger Part No.: 809GC6; Compatible with Series: RK-919; Compatible with Mfr. Model No.: 919; Includes: Check Assembly.
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