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Watts Backflow Preventer Repair Kit: Backflow Preventer Repair Kit, 522P30/522P31 - Repair Kits & Parts for Watts Backflow Preventers

WattsRepair Kits & Parts for Watts Backflow Preventers

Watts Backflow Preventer Repair Kit: Backflow Preventer Repair Kit, 522P30/522P31

The WATTS Backflow Preventer Repair Kit is a repair kit for Watts backflow preventers, including a Second Check Assembly. It is compatible with valve sizes 2-1/2 in to 3 in and is designed for use with Series 009…

SKU 3G-OTH-436669

Brand

Watts

Item

Backflow Preventer Repair Kit: Backflow Preventer Repair Kit, 522P30/522P31

Category

Repair Kits & Parts for Watts Backflow Preventers

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Technical Specifications

Watts

Manufacturer Part Number

009 2-1/2 - 3 Rubber Kit 

Type

522P30/522P31, 2 1/2 -3 LF009 

Includes

Second Check Assembly 

Compatible Valve Size

2-1/2 in to 3 in 

Compatible with Series

009

Compatible with Mfr. Model No.

2-1/2 -3 LF009 

Compatible with Grainger Part No.

522P30 

View Full Spec Sheet

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Watts Products

3G Electric (S) Pte. Ltd. — Singapore

Product Description

The WATTS Backflow Preventer Repair Kit is a repair kit for Watts backflow preventers, including a Second Check Assembly. It is compatible with valve sizes 2-1/2 in to 3 in and is designed for use with Series 009 models, specifically the 2-1/2 -3 LF009 (MPN 009 2-1/2 - 3 Rubber Kit).

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, 522P31, 009/LF009, Repair Kit, RK-LF009 (MPN LFRK 009-CK2 2-1/2-3). Key specifications — Compatible Valve Size: 2-1/2 in to 3 in; Compatible with Grainger Part No.: 522P31; Compatible with Series: RK-LF009; Compatible with Mfr. Model No.: 009; Includes: Flow Tube O-Ring.

WATTS Backflow Preventer Repair Kits: Second Check Kit, 522P31, 009/LF009, Repair Kit, RK-LF009 (MPN LFRK 009-CK2 2-1/2-3). Key specifications — Compatible Valve Size: 2-1/2 in to 3 in; Compatible with Grainger Part No.: 522P31; Compatible with Series: RK-LF009; Compatible with Mfr. Model No.: 009; Includes: Flow Tube O-Ring.

WATTS Total Relief Kit: Total Relief Kit, 522P30/522P31, 2 1/2 in to 3 in Compatible Valve Size, 009 (MPN 009 2-1/2 - 3 Total Relief Kit). Key specifications — Compatible Valve Size: 2-1/2 in to 3 in; Compatible with Grainger Part No.: 522P31; Compatible with Series: 009; Compatible with Mfr. Model No.: 2-1/2 -3 LF009; Includes: Second Check Assembly.

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WATTS Backflow Preventer Repair Kit: Backflow Preventer Repair Kit, 793PG8, 8 LF909M1, Repair Kit (MPN 909 8 Rubber Kit). Key specifications — Compatible Valve Size: 8 in; Compatible with Grainger Part No.: 793PG8; Compatible with Series: 909; Compatible with Mfr. Model No.: 8 LF909M1; Includes: Bottom Plug O-Ring.

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WATTS Total Relief Kit: Total Relief Kit, 793PG1/793PG2/793PG3/793PG5, 2 1/2-3 LF909, Repair Kit (MPN 909 2-1/2 - 3 Total Relief Kit). Key specifications — Compatible Valve Size: 2-1/2 in to 3 in; Compatible with Grainger Part No.: 793PG3; Compatible with Series: RK-LF909; Compatible with Mfr. Model No.: 2-1/2-3 LF909; Includes: Flow Tube O-Ring.

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