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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.

Frequently Asked Questions

What is the Watts backflow preventer repair kit used for?

The Watts backflow preventer repair kit is used to service and restore Watts backflow preventers in commercial and industrial water systems. It includes a check disc and is compatible with Series RK-909 and 1-1/2 in valve sizes, helping maintain backflow protection and code compliance.

What are the specifications of the Watts backflow preventer repair kit?

The Watts backflow preventer repair kit (MPN RK909M1RT11/4-2) includes a check disc and is compatible with 1-1/2 in valve sizes, Series RK-909, and manufacturer model number 2 909M1QT. It also fits Grainger part numbers 818DD1, 818DD7, and 818DE2.

Where to buy Watts backflow preventer repair kits worldwide?

3G Electric supplies Watts backflow preventer repair kits worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on the RK909M1RT11/4-2 kit.

How to install a Watts backflow preventer repair kit?

To install the Watts repair kit, first depressurize and drain the system. Remove the old check disc and internal components, then clean the valve body. Install the new check disc and reassemble per Watts guidelines. Always follow local plumbing codes and use proper tools to avoid damage.

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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