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Watts Backflow Preventer Repair Kit: Backflow Preventer Repair Kit, 818DD1/818DD7/818DE2 - Repair Kits & Parts for Watts Backflow Preventers
WattsRepair Kits & Parts for Watts Backflow Preventers

Watts Backflow Preventer Repair Kit: Backflow Preventer Repair Kit, 818DD1/818DD7/818DE2

The WATTS Backflow Preventer Repair Kit (SKU 1RCW3) is a repair kit for Watts backflow preventers, compatible with Series RK-909. It includes a check disc and is designed for use with 1-1/2 in compatible valve sizes…

SKU 3G-OTH-436723

Brand
Watts
Item
Backflow Preventer Repair Kit: Backflow Preventer Repair Kit, 818DD1/818DD7/818DE2
Category
Repair Kits & Parts for Watts Backflow Preventers
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Technical Specifications

Watts
Manufacturer Part Number
RK909M1RT11/4-2
Type
818DD1/818DD7/818DE2, Repair Kit
Includes
Check Disc
Compatible Valve Size
1-1⁄2 in
Compatible with Series
RK-909
Compatible with Mfr. Model No.
2 909M1QT
Compatible with Grainger Part No.
818DD1
View Full Spec Sheet

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

Product Description

The WATTS Backflow Preventer Repair Kit (SKU 1RCW3) is a repair kit for Watts backflow preventers, compatible with Series RK-909. It includes a check disc and is designed for use with 1-1/2 in compatible valve sizes. The kit is compatible with manufacturer model number 2 909M1QT and Grainger part number 818DD1.

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, 36JC71/36JC72/36JC73/36JC78/36JC79/36JC80 (MPN RK774/774DCDA-CK2-21/2-4). Key specifications — Compatible Valve Size: 2-1/2 in to 4 in; Compatible with Grainger Part No.: 36JC71; Compatible with Series: RK-774; Compatible with Mfr. Model No.: 774; Includes: (2) Cam Check with Check O-Rings.
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