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Watts First Check Valve Repair Kit: First Check Kit, 793HG3/793HG4/793HL6/793HL7/793HP6/818DD9 - Repair Kits & Parts for Watts Backflow Preventers

WattsRepair Kits & Parts for Watts Backflow Preventers

Watts First Check Valve Repair Kit: First Check Kit, 793HG3/793HG4/793HL6/793HL7/793HP6/818DD9

The WATTS First Check Valve Repair Kit is a repair kit and part for Watts backflow preventers, including a check assembly. It is compatible with the Series 009 and Mfr. Model No. 1-1/4 - 1-1/2 009M2/LF009M2, with a…

SKU 3G-OTH-436778

Brand

Watts

Item

First Check Valve Repair Kit: First Check Kit, 793HG3/793HG4/793HL6/793HL7/793HP6/818DD9

Category

Repair Kits & Parts for Watts Backflow Preventers

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Technical Specifications

Watts

Manufacturer Part Number

009 M2 1-1/4 - 1-1/2 1st Check Kit 

Type

793HG3/793HG4/793HL6/793HL7/793HP6/818DD9, 009 

Includes

Check Assembly 

Compatible Valve Size

M2

Compatible with Series

009

Compatible with Mfr. Model No.

1-1/4 - 1-1/2 009M2/LF009M2 

Compatible with Grainger Part No.

793HG4 

View Full Spec Sheet

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Watts Products

3G Electric (S) Pte. Ltd. — Singapore

Product Description

The WATTS First Check Valve Repair Kit is a repair kit and part for Watts backflow preventers, including a check assembly. It is compatible with the Series 009 and Mfr. Model No. 1-1/4 - 1-1/2 009M2/LF009M2, with a compatible valve size of M2. The manufacturer part number is 009 M2 1-1/4 - 1-1/2 1st Check 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 First Check Valve Repair Kit: First Check Kit, 793HG7/793HL8/818DD2, 2 009M2/LF009M2, 009 (MPN 009 M2 2 1st Check Kit). Key specifications — Compatible Valve Size: 2 in; Compatible with Grainger Part No.: 793HL8; Compatible with Series: 009; Compatible with Mfr. Model No.: 2 009M2/LF009M2; Includes: Cover O-Ring.

WATTS First Check Valve Repair Kit: First Check Valve Repair Kit, 429J28/793HF6/793HL3/818DD5, 009 (MPN 009-1/4 - 1/2 1st Check Kit). Key specifications — Compatible Valve Size: 1/4 in to 1/2 in; Compatible with Grainger Part No.: 793HL3; Compatible with Series: 009; Compatible with Mfr. Model No.: 1/4 - 1/2 009/LF009; Includes: Check Assembly.

WATTS First Check Valve Repair Kit: First Check Valve Repair Kit, 429J28/793HF6/793HL3/818DD5, 009 (MPN 009-1/4 - 1/2 1st Check Kit). Key specifications — Compatible Valve Size: 1/4 in to 1/2 in; Compatible with Grainger Part No.: 793HL3; Compatible with Series: 009; Compatible with Mfr. Model No.: 1/4 - 1/2 009/LF009; Includes: Check Assembly.

WATTS First Check Valve Repair Kit: First Check Kit, 793HG9/818DD3/818DE0/818DE3, 3/4 009M3/LF009M3 (MPN 009 M3-3/4 1st Check Kit). Key specifications — Compatible Valve Size: 3/4 in; Compatible with Grainger Part No.: 818DE0; Compatible with Series: 009; Compatible with Mfr. Model No.: 3/4 009M3/LF009M3; Includes: Check Assembly.

WATTS First Check Valve Repair Kit: First Check Kit, 793HG9/818DD3/818DE0/818DE3, 3/4 009M3/LF009M3 (MPN 009 M3-3/4 1st Check Kit). Key specifications — Compatible Valve Size: 3/4 in; Compatible with Grainger Part No.: 818DE0; Compatible with Series: 009; Compatible with Mfr. Model No.: 3/4 009M3/LF009M3; Includes: Check Assembly.

WATTS First Check Valve Repair Kit: First Check Kit, 26X140/429J30/793HG8/818DD8, 1 009M2/LF009M2 (MPN 009 M2 1 1st Check Kit). Key specifications — Compatible Valve Size: M2; Compatible with Grainger Part No.: 26X140; Compatible with Series: 009; Compatible with Mfr. Model No.: 1 009M2/LF009M2; Includes: Check Assembly.

WATTS First Check Valve Repair Kit: First Check Kit, 26X140/429J30/793HG8/818DD8, 1 009M2/LF009M2 (MPN 009 M2 1 1st Check Kit). Key specifications — Compatible Valve Size: M2; Compatible with Grainger Part No.: 26X140; Compatible with Series: 009; Compatible with Mfr. Model No.: 1 009M2/LF009M2; Includes: Check Assembly.

WATTS First Check Valve Repair Kit: First Check Valve Repair Kit, 793HG2/793HL5/818DE6/818DE8, 007 (MPN 007 M2 1-1/2 - 2 1st Check Kit). Key specifications — Compatible Valve Size: 1-1/2 in to 2 in; Compatible with Grainger Part No.: 818DE6; Compatible with Series: 007; Compatible with Mfr. Model No.: 1-1/4-1-1/2 007M2/LF007M2; Includes: Seat O-Ring.

WATTS First Check Valve Repair Kit: First Check Valve Repair Kit, 793HG2/793HL5/818DE6/818DE8, 007 (MPN 007 M2 1-1/2 - 2 1st Check Kit). Key specifications — Compatible Valve Size: 1-1/2 in to 2 in; Compatible with Grainger Part No.: 818DE6; Compatible with Series: 007; Compatible with Mfr. Model No.: 1-1/4-1-1/2 007M2/LF007M2; Includes: Seat O-Ring.

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

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WATTS Relief Valve Repair Kit: Relief Valve Kit, 793HG3/793HG4/793HL6/793HL7/793HP6/818DD9, 009 (MPN 009 M2 1-1/4 - 1-1/2 Relief Valve). Key specifications — Compatible Valve Size: M2; Compatible with Grainger Part No.: 793HG4; Compatible with Series: 009; Compatible with Mfr. Model No.: 1-1/4 - 1-1/2 009M2/LF009M2; Includes: Diaphragm.

WATTS Relief Valve Repair Kit: Relief Valve Kit, 793HG3/793HG4/793HL6/793HL7/793HP6/818DD9, 009 (MPN 009 M2 1-1/4 - 1-1/2 Relief Valve). Key specifications — Compatible Valve Size: M2; Compatible with Grainger Part No.: 793HG4; Compatible with Series: 009; Compatible with Mfr. Model No.: 1-1/4 - 1-1/2 009M2/LF009M2; Includes: Diaphragm.

WATTS First Check Valve Repair Kit: First Check Valve Kit, 793PG1/793PG2/793PG3/793PG5, Repair Kit (MPN LFRK 909-CK1 2-1/2-3). Key specifications — Compatible Valve Size: 2-1/2 in to 3 in; Compatible with Grainger Part No.: 793PG1; Compatible with Series: 909; Compatible with Mfr. Model No.: 2-1/2-3 LF909; Includes: Lubricant.

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WATTS Backflow Preventer Repair Kits: First or Second Check Kit, 1/2 in Compatible Valve Size (MPN RK 007-CK4-1/2). Key specifications — Compatible Valve Size: 1/2 in; Compatible with Grainger Part No.: 429J25; Compatible with Series: RK-007; Compatible with Mfr. Model No.: 007; Includes: Cover O-Ring.

WATTS Backflow Preventer Repair Kit: Complete Rubber Parts Kit, 818DD1/818DD7/818DE2, Repair Kit (MPN LFRK 909M1-RT 1-1/4-2). Key specifications — Compatible Valve Size: 1-1/4 in to 2 in; Compatible with Grainger Part No.: 818DE2; Compatible with Series: 909; Compatible with Mfr. Model No.: 1-1/4-2 LF909M1; Includes: Seat O-Ring.

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WATTS Backflow Preventer Repair Kits: First Check Kit, 809GC6, 3/4 in Compatible Valve Size, RK-919 (MPN RK 919-CK1-3/4). Key specifications — Compatible Valve Size: 3/4 in; Compatible with Grainger Part No.: 809GC6; Compatible with Series: RK-919; Compatible with Mfr. Model No.: LF919; Includes: Check Assembly.

WATTS Backflow Preventer Repair Kits: First Check Kit, 809GC6, 3/4 in Compatible Valve Size, RK-919 (MPN RK 919-CK1-3/4). Key specifications — Compatible Valve Size: 3/4 in; Compatible with Grainger Part No.: 809GC6; Compatible with Series: RK-919; Compatible with Mfr. Model No.: LF919; Includes: Check Assembly.

WATTS Double Check Valve Repair Kit: Double Check Valve Repair Kit, 522P30/812MY5/818DE7, Repair Kit (MPN 007 M3-3/4 Rubber Kit). Key specifications — Compatible Valve Size: 3/4 in; Compatible with Grainger Part No.: 522P30; Compatible with Series: 007; Compatible with Mfr. Model No.: 3/4 007M3/LF007M3; Includes: (2) Disc Assembly.

WATTS Double Check Valve Repair Kit: Double Check Valve Repair Kit, 522P30/812MY5/818DE7, Repair Kit (MPN 007 M3-3/4 Rubber Kit). Key specifications — Compatible Valve Size: 3/4 in; Compatible with Grainger Part No.: 522P30; Compatible with Series: 007; Compatible with Mfr. Model No.: 3/4 007M3/LF007M3; Includes: (2) Disc Assembly.