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Watts Backflow Preventer Repair Kit: Relief Valve Kit, 818DD4/818DD6, 1 909 QT/3/4"-1" 909QT - Repair Kits & Parts for Watts Backflow Preventers
WattsRepair Kits & Parts for Watts Backflow Preventers

Watts Backflow Preventer Repair Kit: Relief Valve Kit, 818DD4/818DD6, 1 909 QT/3/4"-1" 909QT

The WATTS Backflow Preventer Repair Kit: Relief Valve Kit (SKU 1RCW1) is a repair kit for Watts backflow preventers, compatible with Series 909 models including the 3/4"-1" 909QT. It includes a diaphragm and is…

SKU 3G-OTH-436697

Brand
Watts
Item
Backflow Preventer Repair Kit: Relief Valve Kit, 818DD4/818DD6, 1 909 QT/3/4"-1" 909QT
Category
Repair Kits & Parts for Watts Backflow Preventers
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Technical Specifications

Watts
Manufacturer Part Number
RK909RT3/4-1
Type
818DD4/818DD6, 1 909 QT/3/4"-1" 909QT, 909
Includes
Diaphragm
Compatible Valve Size
3/4 in to 1 in
Compatible with Series
909
Compatible with Mfr. Model No.
3/4"-1" 909QT
Compatible with Grainger Part No.
818DD4
View Full Spec Sheet

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

Product Description

The WATTS Backflow Preventer Repair Kit: Relief Valve Kit (SKU 1RCW1) is a repair kit for Watts backflow preventers, compatible with Series 909 models including the 3/4"-1" 909QT. It includes a diaphragm and is designed for valve sizes from 3/4 in to 1 in.

Frequently Asked Questions

What is the Watts backflow preventer repair kit used for?

The Watts backflow preventer repair kit is used to service relief valves on Series 909 backflow preventers. It is designed for valve sizes from 3/4 in to 1 in and includes a diaphragm. This kit helps maintain proper backflow protection in commercial and residential water systems.

What are the specifications of the Watts RK909RT3/4-1 repair kit?

The Watts RK909RT3/4-1 repair kit includes a diaphragm and is compatible with Series 909 backflow preventers. It fits valve sizes from 3/4 in to 1 in and is compatible with model 3/4"-1" 909QT. The manufacturer part number is RK909RT3/4-1, and it is also compatible with Grainger part number 818DD4.

Where to buy Watts backflow preventer repair kits worldwide?

3G Electric supplies Watts backflow preventer repair kits worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us to source the RK909RT3/4-1 kit for your Series 909 backflow preventer.

How to install the Watts relief valve repair kit?

To install the Watts relief valve repair kit, first depressurize the system and remove the relief valve cover. Replace the old diaphragm with the new one from the kit, ensuring proper alignment. Reassemble the valve and test for leaks. Always follow the manufacturer's instructions for safe installation.

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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