Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
RFQ CartGet a QuoteSign inSign up
Watts First Check Valve Repair Kit: First Check Valve Repair Kit, 429J28/793HF6/793HL3/818DD5 - Repair Kits & Parts for Watts Backflow Preventers
WattsRepair Kits & Parts for Watts Backflow Preventers

Watts First Check Valve Repair Kit: First Check Valve Repair Kit, 429J28/793HF6/793HL3/818DD5

The WATTS First Check Valve Repair Kit is a repair kit for Watts backflow preventers, designed for use with Series 009 models. It includes a check assembly and is compatible with valve sizes from 1/4 in to 1/2 in, as…

SKU 3G-OTH-436664

Brand
Watts
Item
First Check Valve Repair Kit: First Check Valve Repair Kit, 429J28/793HF6/793HL3/818DD5
Category
Repair Kits & Parts for Watts Backflow Preventers
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

Watts
Manufacturer Part Number
009-1/4 - 1/2 1st Check Kit
Type
429J28/793HF6/793HL3/818DD5, 009
Includes
Check Assembly
Compatible Valve Size
1/4 in to 1/2 in
Compatible with Series
009
Compatible with Mfr. Model No.
1/4 - 1/2 009/LF009
Compatible with Grainger Part No.
793HL3
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The WATTS First Check Valve Repair Kit is a repair kit for Watts backflow preventers, designed for use with Series 009 models. It includes a check assembly and is compatible with valve sizes from 1/4 in to 1/2 in, as well as manufacturer model numbers 1/4 - 1/2 009/LF009.

Frequently Asked Questions

What is the WATTS First Check Valve Repair Kit used for?

The WATTS First Check Valve Repair Kit is used to service backflow preventers in commercial and industrial water systems. It replaces the check assembly in Series 009 models, helping maintain backflow protection and compliance with plumbing codes. 3G Electric supplies this genuine Watts repair kit for worldwide delivery.

What are the specifications of the WATTS First Check Valve Repair Kit?

This Watts repair kit includes a check assembly and is compatible with Series 009 backflow preventers. It fits valve sizes from 1/4 in to 1/2 in and matches manufacturer model numbers 1/4 - 1/2 009/LF009. The kit also works with Grainger part number 793HL3. 3G Electric sources genuine Watts parts globally.

Where to buy the WATTS First Check Valve Repair Kit worldwide?

3G Electric supplies the WATTS First Check Valve Repair Kit to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us to order this genuine Watts repair kit for your backflow preventer maintenance needs.

How to install the WATTS First Check Valve Repair Kit?

Installation requires shutting off water supply, depressurizing the system, and removing the backflow preventer's first check cover. Replace the old check assembly with the new Watts kit components, then reassemble and test for proper sealing. Always follow the manufacturer's instructions for your specific Series 009 model.

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.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Similar products

Matched by specification & description
WATTS First Check Valve Repair Kit: First Check Kit, 793HG3/793HG4/793HL6/793HL7/793HP6/818DD9, 009 (MPN 009 M2 1-1/4 - 1-1/2 1st Check Kit). 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: Check Assembly.
Watts
WATTS First Check Valve Repair Kit: First Check Kit, 793HG3/793HG4/793HL6/793HL7/793HP6/818DD9, 009 (MPN 009 M2 1-1/4 - 1-1/2 1st Check Kit). 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: Check Assembly.
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
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 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
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
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
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, Check Assembly/Cover O-Ring, 009 (MPN 009 1-1/4 - 2 1st Check Kit). Key specifications — Compatible Valve Size: 1-1/4 in to 2 in; Compatible with Series: 009; Compatible with Mfr. Model No.: 1-1/4-2 009/LF009; Includes: Check Assembly.
Watts
WATTS First Check Valve Repair Kit: First Check Valve Repair Kit, Check Assembly/Cover O-Ring, 009 (MPN 009 1-1/4 - 2 1st Check Kit). Key specifications — Compatible Valve Size: 1-1/4 in to 2 in; Compatible with Series: 009; Compatible with Mfr. Model No.: 1-1/4-2 009/LF009; Includes: Check Assembly.

More from Watts

View all Watts parts →
WATTS Cap: Cap, 1/8 in Connection Size - Side 1, Male, IPS, Repair Part, Brass, Backflow Preventer (MPN SAE-TC Brass Cap 1/8 SAE). Key specifications — Compatible with Series: 4000B.
Watts
WATTS Cap: Cap, 1/8 in Connection Size - Side 1, Male, IPS, Repair Part, Brass, Backflow Preventer (MPN SAE-TC Brass Cap 1/8 SAE). Key specifications — Compatible with Series: 4000B.
WATTS Test Cock: Test Cock, 1/4 in Connection Size - Side 1, Male, NPT, Repair Part, Female, NSF (MPN 1/4 LFTC). Key specifications — Compatible with Series: 4000B.
Watts
WATTS Test Cock: Test Cock, 1/4 in Connection Size - Side 1, Male, NPT, Repair Part, Female, NSF (MPN 1/4 LFTC). Key specifications — Compatible with Series: 4000B.
WATTS Test Cock: Test Cock, 1/2 in Connection Size - Side 1, NPT, Repair Part, Bronze (MPN 1/2 LF-TC 757/957 2-1/2 - 4). Key specifications — Compatible with Series: Watts Series LF-TC, 1/2 in.
Watts
WATTS Test Cock: Test Cock, 1/2 in Connection Size - Side 1, NPT, Repair Part, Bronze (MPN 1/2 LF-TC 757/957 2-1/2 - 4). Key specifications — Compatible with Series: Watts Series LF-TC, 1/2 in.
WATTS Adapter: Test Cock, 1/4 in Connection Size - Side 1, Male, NPT, Repair Part, Bronze (MPN SAE-TC-Adapter 1/4). Key specifications — Compatible with Series: Watts Series SAE-TC, 1/4 in.
Watts
WATTS Adapter: Test Cock, 1/4 in Connection Size - Side 1, Male, NPT, Repair Part, Bronze (MPN SAE-TC-Adapter 1/4). Key specifications — Compatible with Series: Watts Series SAE-TC, 1/4 in.
WATTS Test Cock: Test Cock, 1/4 in Connection Size - Side 1, Male, NPT, Repair Part, Female, NPT (MPN 1/4 LF-TC). Key specifications — Compatible with Series: 4000B.
Watts
WATTS Test Cock: Test Cock, 1/4 in Connection Size - Side 1, Male, NPT, Repair Part, Female, NPT (MPN 1/4 LF-TC). Key specifications — Compatible with Series: 4000B.
WATTS Backflow Preventer Repair Kits: Second Check Kit, 1RCX3/1RCX5/1RCX7, 957/957RPDA, Repair Kit (MPN RK957/957RPDA-CK2-21/2-4). Key specifications — Compatible Valve Size: 2-1/2 in to 4 in; Compatible with Grainger Part No.: 1RCX3; Compatible with Series: RK-957; Compatible with Mfr. Model No.: 957; Includes: Second Check Module.
Watts
WATTS Backflow Preventer Repair Kits: Second Check Kit, 1RCX3/1RCX5/1RCX7, 957/957RPDA, Repair Kit (MPN RK957/957RPDA-CK2-21/2-4). Key specifications — Compatible Valve Size: 2-1/2 in to 4 in; Compatible with Grainger Part No.: 1RCX3; Compatible with Series: RK-957; Compatible with Mfr. Model No.: 957; Includes: Second Check Module.
WATTS Vacuum Breaker Repair Kit: Pressure Vacuum Breaker Check Kit, 1/2 - 3/4 800M4, Repair Kit (MPN 800M4-1/2-3/4 1st Check Kit). Key specifications — Compatible Valve Size: 1/2 in to 3/4 in; Compatible with Grainger Part No.: 793HT8; Compatible with Series: 800M4; Compatible with Mfr. Model No.: 1/2 - 3/4 800M4; Includes: Bonnet O-Ring.
Watts
WATTS Vacuum Breaker Repair Kit: Pressure Vacuum Breaker Check Kit, 1/2 - 3/4 800M4, Repair Kit (MPN 800M4-1/2-3/4 1st Check Kit). Key specifications — Compatible Valve Size: 1/2 in to 3/4 in; Compatible with Grainger Part No.: 793HT8; Compatible with Series: 800M4; Compatible with Mfr. Model No.: 1/2 - 3/4 800M4; Includes: Bonnet O-Ring.
WATTS Backflow Preventer Repair Kit: Complete Rubber Parts Kit, 6A771, 009-M1-QTS, Repair Kit, 009 (MPN RK 009 RT 3/4 - 1). Key specifications — Compatible Valve Size: 3/4 in to 1 in; Compatible with Grainger Part No.: 6A771; Compatible with Series: 009; Compatible with Mfr. Model No.: 009-M1-QTS; Includes: (2) Disc Assembly.
Watts
WATTS Backflow Preventer Repair Kit: Complete Rubber Parts Kit, 6A771, 009-M1-QTS, Repair Kit, 009 (MPN RK 009 RT 3/4 - 1). Key specifications — Compatible Valve Size: 3/4 in to 1 in; Compatible with Grainger Part No.: 6A771; Compatible with Series: 009; Compatible with Mfr. Model No.: 009-M1-QTS; Includes: (2) Disc Assembly.