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Watts Backflow Preventer Repair Kit: Relief Valve Kit, 793PG1/793PG2/793PG3/793PG5 - Repair Kits & Parts for Watts Backflow Preventers
WattsRepair Kits & Parts for Watts Backflow Preventers

Watts Backflow Preventer Repair Kit: Relief Valve Kit, 793PG1/793PG2/793PG3/793PG5

The WATTS Backflow Preventer Repair Kit: Relief Valve Kit (SKU 1RCW4) is a repair kit for Watts backflow preventers, compatible with Series 909 and Mfr. Model No. 21/2 909 NRS. It includes a diaphragm and fits valve…

SKU 3G-OTH-436702

Brand
Watts
Item
Backflow Preventer Repair Kit: Relief Valve Kit, 793PG1/793PG2/793PG3/793PG5
Category
Repair Kits & Parts for Watts Backflow Preventers
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Technical Specifications

Watts
Manufacturer Part Number
RK909RT21/2-3
Type
793PG1/793PG2/793PG3/793PG5, Repair Kit, 909
Includes
Diaphragm
Compatible Valve Size
2-1/2 in to 3 in
Compatible with Series
909
Compatible with Mfr. Model No.
21/2 909 NRS
Compatible with Grainger Part No.
793PG3
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 1RCW4) is a repair kit for Watts backflow preventers, compatible with Series 909 and Mfr. Model No. 21/2 909 NRS. It includes a diaphragm and fits valve sizes 2-1/2 in to 3 in, with manufacturer part number RK909RT21/2-3.

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 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.
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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.
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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.