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Watts Vent Elbows: Air Gaps and Elbow, 429J28/793HF6/793HL3/818DD5, Repair Part - Repair Kits & Parts for Watts Backflow Preventers

WattsRepair Kits & Parts for Watts Backflow Preventers

Watts Vent Elbows: Air Gaps and Elbow, 429J28/793HF6/793HL3/818DD5, Repair Part

The WATTS Vent Elbows: Air Gaps and Elbow (SKU 6AUY9) is a repair part for Watts backflow preventers, compatible with the 909 ELA series. It fits a 3/4 in valve size and is compatible with manufacturer model numbers…

SKU 3G-OTH-436832

Brand

Watts

Item

Vent Elbows: Air Gaps and Elbow, 429J28/793HF6/793HL3/818DD5, Repair Part

Category

Repair Kits & Parts for Watts Backflow Preventers

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Technical Specifications

Watts

Manufacturer Part Number

909ELA 

Type

429J28/793HF6/793HL3/818DD5, Repair Part 

ELA

909

Compatible Valve Size

3/4 in 

Compatible with Series

909 ELA 

Compatible with Mfr. Model No.

3/4 009M3/LF009M3 

Compatible with Grainger Part No.

818DD5

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Watts Products

3G Electric (S) Pte. Ltd. — Singapore

Product Description

The WATTS Vent Elbows: Air Gaps and Elbow (SKU 6AUY9) is a repair part for Watts backflow preventers, compatible with the 909 ELA series. It fits a 3/4 in valve size and is compatible with manufacturer model numbers 3/4 009M3/LF009M3 and Grainger part number 818DD5.

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 Vent Elbows: Air Gaps and Elbow, 793HG7/793HL8/818DD1/818DD2/818DD7/818DE2, Repair Part (MPN 909ELF). Key specifications — Compatible Valve Size: 4 in; Compatible with Grainger Part No.: 818DD7; Compatible with Series: 909 ELF; Compatible with Mfr. Model No.: 1-1/4 - 009M1.

WATTS Vent Elbows: Air Gaps and Elbow, 793HG7/793HL8/818DD1/818DD2/818DD7/818DE2, Repair Part (MPN 909ELF). Key specifications — Compatible Valve Size: 4 in; Compatible with Grainger Part No.: 818DD7; Compatible with Series: 909 ELF; Compatible with Mfr. Model No.: 1-1/4 - 009M1.

WATTS Vent Elbows: Air Gaps and Elbow, 522P30/522P31/793PG1/793PG2/793PG3/793PG5, Repair Part (MPN 909ELH). Key specifications — Compatible Valve Size: 2-1/2 in to 3 in; Compatible with Grainger Part No.: 522P30; Compatible with Series: 909 ELH; Compatible with Mfr. Model No.: 2-1/2 - 3 009/LF909.

WATTS Vent Elbows: Air Gaps and Elbow, 522P30/522P31/793PG1/793PG2/793PG3/793PG5, Repair Part (MPN 909ELH). Key specifications — Compatible Valve Size: 2-1/2 in to 3 in; Compatible with Grainger Part No.: 522P30; Compatible with Series: 909 ELH; Compatible with Mfr. Model No.: 2-1/2 - 3 009/LF909.

WATTS Vent Elbows: Air Gaps and Elbow, 3/4 in to 1 in Compatible Valve Size, Repair Part, 909 ELC (MPN 909ELC). Key specifications — Compatible Valve Size: 3/4 in to 1 in; Compatible with Grainger Part No.: 429J30; Compatible with Series: 909 ELC; Compatible with Mfr. Model No.: 1-1/4 - 1-1/2 009M2.

WATTS Vent Elbows: Air Gaps and Elbow, 3/4 in to 1 in Compatible Valve Size, Repair Part, 909 ELC (MPN 909ELC). Key specifications — Compatible Valve Size: 3/4 in to 1 in; Compatible with Grainger Part No.: 429J30; Compatible with Series: 909 ELC; Compatible with Mfr. Model No.: 1-1/4 - 1-1/2 009M2.

WATTS Backflow Preventer Repair Kits: Check Valve Kit, 15W050/15W051/15W052/818DD1/818DD7/818DE2 (MPN LFRK909M1-CK2 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: LF909-FS; Compatible with Mfr. Model No.: LF909; Includes: Spring.

WATTS Backflow Preventer Repair Kits: Check Valve Kit, 15W050/15W051/15W052/818DD1/818DD7/818DE2 (MPN LFRK909M1-CK2 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: LF909-FS; Compatible with Mfr. Model No.: LF909; Includes: Spring.

WATTS Valve Repair Part Repair Kit: Repair Kit, 3/4 in to 1 in Compatible Valve Size, LF909-FS, 909 (MPN 0794066). Key specifications — Compatible Valve Size: 3/4 in to 1 in; Compatible with Series: 909; Compatible with Mfr. Model No.: LF909-FS; Includes: Relief Valve Repair Kit.

WATTS Valve Repair Part Repair Kit: Repair Kit, 3/4 in to 1 in Compatible Valve Size, LF909-FS, 909 (MPN 0794066). Key specifications — Compatible Valve Size: 3/4 in to 1 in; Compatible with Series: 909; Compatible with Mfr. Model No.: LF909-FS; Includes: Relief Valve Repair Kit.

WATTS Backflow Preventer Repair Kits: First Check Kit, 6AUW3, 8 in Compatible Valve Size, Repair Kit (MPN RK 757/757DCDA-CK1 8). Key specifications — Compatible Valve Size: 8 in; Compatible with Grainger Part No.: 6AUW3; Compatible with Series: 757; Compatible with Mfr. Model No.: 757DCDA; Includes: Red Silicone Disc Elastomer.

WATTS Backflow Preventer Repair Kits: First Check Kit, 6AUW3, 8 in Compatible Valve Size, Repair Kit (MPN RK 757/757DCDA-CK1 8). Key specifications — Compatible Valve Size: 8 in; Compatible with Grainger Part No.: 6AUW3; Compatible with Series: 757; Compatible with Mfr. Model No.: 757DCDA; Includes: Red Silicone Disc Elastomer.

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WATTS Backflow Preventer Repair Kits: First or Second Check Kit, 36JC53/36JC54/36JC59/36JC60 (MPN LFRK 709-CK4 2-1/2-3). Key specifications — Compatible Valve Size: 2-1/2 in to 3 in; Compatible with Grainger Part No.: 36JC53; Compatible with Series: RK-LF709; Compatible with Mfr. Model No.: 709; Includes: Disc and Spring Assembly.

WATTS Backflow Preventer Repair Kits: First or Second Check Kit, 36JC53/36JC54/36JC59/36JC60 (MPN LFRK 709-CK4 2-1/2-3). Key specifications — Compatible Valve Size: 2-1/2 in to 3 in; Compatible with Grainger Part No.: 36JC53; Compatible with Series: RK-LF709; Compatible with Mfr. Model No.: 709; Includes: Disc and Spring Assembly.

WATTS Vacuum Breaker Repair Kit: Vacuum Breaker Repair Kit, 1/2 in to 1 in Compatible Valve Size (MPN 800-1/2-1 Rubber Kit). Key specifications — Compatible Valve Size: 1/2 in to 1 in; Compatible with Series: 800; Compatible with Mfr. Model No.: 1/2 - 1 800; Includes: Check Disc Vent Seal.

WATTS Vacuum Breaker Repair Kit: Vacuum Breaker Repair Kit, 1/2 in to 1 in Compatible Valve Size (MPN 800-1/2-1 Rubber Kit). Key specifications — Compatible Valve Size: 1/2 in to 1 in; Compatible with Series: 800; Compatible with Mfr. Model No.: 1/2 - 1 800; Includes: Check Disc Vent Seal.

WATTS Vacuum Breaker Repair Kit: Vacuum Breaker Repair Kit, 5DMH8/5DMH9, 3/4 - 1 008, Repair Kit (MPN 008-3/4-1 Rubber Kit). Key specifications — Compatible Valve Size: 3/4 in to 1 in; Compatible with Grainger Part No.: 5DMH8; Compatible with Series: 008; Compatible with Mfr. Model No.: 3/4 - 1 008; Includes: Vent O-Ring.

WATTS Vacuum Breaker Repair Kit: Vacuum Breaker Repair Kit, 5DMH8/5DMH9, 3/4 - 1 008, Repair Kit (MPN 008-3/4-1 Rubber Kit). Key specifications — Compatible Valve Size: 3/4 in to 1 in; Compatible with Grainger Part No.: 5DMH8; Compatible with Series: 008; Compatible with Mfr. Model No.: 3/4 - 1 008; Includes: Vent O-Ring.

WATTS Backflow Preventer Repair Kits: Total Relief Valve Kit, 994/994RPDA, 994/994RPDA (MPN RK994/994RPDA-VT 21/2-10). Key specifications — Compatible Valve Size: 2-1/2 in to 10 in; Compatible with Grainger Part No.: 36JD26; Compatible with Series: 994RPDA; Compatible with Mfr. Model No.: 994RPDA; Includes: Sleeve.

WATTS Backflow Preventer Repair Kits: Total Relief Valve Kit, 994/994RPDA, 994/994RPDA (MPN RK994/994RPDA-VT 21/2-10). Key specifications — Compatible Valve Size: 2-1/2 in to 10 in; Compatible with Grainger Part No.: 36JD26; Compatible with Series: 994RPDA; Compatible with Mfr. Model No.: 994RPDA; Includes: Sleeve.

WATTS First Check Valve Repair Kit: First Check Valve Repair Kit, 6A769/812MY7/818DF4, Repair Kit (MPN 007 M1 1-1/2 - 2 1st Check Kit). Key specifications — Compatible Valve Size: M1; Compatible with Grainger Part No.: 6A769; Compatible with Series: 007; Compatible with Mfr. Model No.: 1-1/2 - 2 007M1; Includes: Spring.

WATTS First Check Valve Repair Kit: First Check Valve Repair Kit, 6A769/812MY7/818DF4, Repair Kit (MPN 007 M1 1-1/2 - 2 1st Check Kit). Key specifications — Compatible Valve Size: M1; Compatible with Grainger Part No.: 6A769; Compatible with Series: 007; Compatible with Mfr. Model No.: 1-1/2 - 2 007M1; Includes: Spring.

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

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

WATTS Vacuum Breaker Repair Kit: Rubber Parts Repair Kit, 1/2 in to 3/4 in Compatible Valve Size (MPN 800M3-1/2-3/4 Rubber Kit). Key specifications — Compatible Valve Size: 1/2 in to 3/4 in; Compatible with Series: 800M3; Compatible with Mfr. Model No.: 1/2 - 3/4 800M3; Includes: Bonnet O-Ring.

WATTS Vacuum Breaker Repair Kit: Rubber Parts Repair Kit, 1/2 in to 3/4 in Compatible Valve Size (MPN 800M3-1/2-3/4 Rubber Kit). Key specifications — Compatible Valve Size: 1/2 in to 3/4 in; Compatible with Series: 800M3; Compatible with Mfr. Model No.: 1/2 - 3/4 800M3; Includes: Bonnet O-Ring.

WATTS Vacuum Breaker Repair Kit: Rubber Repair Kit, 1/2 in to 1 in/M2 Compatible Valve Size, 800M2 (MPN 800M2-1/2-1 Rubber Kit). Key specifications — Compatible Valve Size: M2; Compatible with Series: 800M2; Compatible with Mfr. Model No.: 1/2 - 1 800M2; Includes: Float Vent Disc Assembly (Vent Float Seal and Spring).

WATTS Vacuum Breaker Repair Kit: Rubber Repair Kit, 1/2 in to 1 in/M2 Compatible Valve Size, 800M2 (MPN 800M2-1/2-1 Rubber Kit). Key specifications — Compatible Valve Size: M2; Compatible with Series: 800M2; Compatible with Mfr. Model No.: 1/2 - 1 800M2; Includes: Float Vent Disc Assembly (Vent Float Seal and Spring).