We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

Watts Second Check Valve Repair Kit: Second Check Valve Repair Kit, 3/4-1 007/LF007 - Repair Kits & Parts for Watts Backflow Preventers

WattsRepair Kits & Parts for Watts Backflow Preventers

Watts Second Check Valve Repair Kit: Second Check Valve Repair Kit, 3/4-1 007/LF007

The WATTS Second Check Valve Repair Kit is a repair kit for Watts 007 Series backflow preventers, compatible with valve sizes from 3/4 in to 1 in and model numbers 3/4-1 007/LF007. This kit includes a check cage and…

SKU 3G-OTH-436779

Brand

Watts

Item

Second Check Valve Repair Kit: Second Check Valve Repair Kit, 3/4-1 007/LF007

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.

Create free account →Log in

Worldwide Shipping

Air & sea freight

Datasheet on Request

Technical specs

1-Day Quote

Replies within 24h

Technical Specifications

Watts

Manufacturer Part Number

007-3/4 - 1 2nd Check Kit 

Type

3/4-1 007/LF007, Repair Kit, 007 

Includes

Check Cage 

Compatible Valve Size

3/4 in to 1 in 

Compatible with Series

007

Compatible with Mfr. Model No.

3/4-1 007/LF007 

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 Second Check Valve Repair Kit is a repair kit for Watts 007 Series backflow preventers, compatible with valve sizes from 3/4 in to 1 in and model numbers 3/4-1 007/LF007. This kit includes a check cage and is identified by manufacturer part number 007-3/4 - 1 2nd 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.

Browse all Watts products →Contact our engineers →

You might also need

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

Similar products

Matched by specification & description

WATTS Second Check Valve Repair Kit: Second Check Valve Repair Kit, 1 1/2-2 007/LF007, Repair Kit (MPN 007 1-1/2 - 2 2nd Check Kit). Key specifications — Compatible Valve Size: 1-1/2 in to 2 in; Compatible with Series: 007; Compatible with Mfr. Model No.: 1-1/2-2 007/LF007; Includes: Disc Assembly.

WATTS Second Check Valve Repair Kit: Second Check Valve Repair Kit, 1 1/2-2 007/LF007, Repair Kit (MPN 007 1-1/2 - 2 2nd Check Kit). Key specifications — Compatible Valve Size: 1-1/2 in to 2 in; Compatible with Series: 007; Compatible with Mfr. Model No.: 1-1/2-2 007/LF007; Includes: Disc Assembly.

WATTS Second Check Valve Repair Kit: Second Check Valve Repair Kit, 6A769/812MY7/818DF4, Repair Kit (MPN 007 M1 1-1/2 - 2 2nd Check Kit). Key specifications — Compatible Valve Size: 1-1/2 in to 2 in; Compatible with Grainger Part No.: 6A769; Compatible with Series: 007; Compatible with Mfr. Model No.: 1-1/2 - 2 007M1/LF007M1; Includes: Disc Assembly.

WATTS Second Check Valve Repair Kit: Second Check Valve Repair Kit, 6A769/812MY7/818DF4, Repair Kit (MPN 007 M1 1-1/2 - 2 2nd Check Kit). Key specifications — Compatible Valve Size: 1-1/2 in to 2 in; Compatible with Grainger Part No.: 6A769; Compatible with Series: 007; Compatible with Mfr. Model No.: 1-1/2 - 2 007M1/LF007M1; Includes: Disc Assembly.

WATTS First Check Valve Repair Kit: First Check Valve Repair Kit, 1 1/2-2 007/LF007, Repair Kit, 007 (MPN 007 1-1/2 - 2 1st Check Kit). Key specifications — Compatible Valve Size: 1-1/2 in to 2 in; Compatible with Series: 007; Compatible with Mfr. Model No.: 1-1/2-2 007/LF007; Includes: Disc Assembly.

WATTS First Check Valve Repair Kit: First Check Valve Repair Kit, 1 1/2-2 007/LF007, Repair Kit, 007 (MPN 007 1-1/2 - 2 1st Check Kit). Key specifications — Compatible Valve Size: 1-1/2 in to 2 in; Compatible with Series: 007; Compatible with Mfr. Model No.: 1-1/2-2 007/LF007; Includes: Disc Assembly.

WATTS First Check Valve Repair Kit: First Check Valve Repair Kit, 3/4-1 007/LF007, Repair Kit, 007 (MPN 007-3/4 - 1 1st Check Kit). Key specifications — Compatible Valve Size: 3/4 in to 1 in; Compatible with Series: 007; Compatible with Mfr. Model No.: 3/4-1 007/LF007; Includes: Spring.

WATTS First Check Valve Repair Kit: First Check Valve Repair Kit, 3/4-1 007/LF007, Repair Kit, 007 (MPN 007-3/4 - 1 1st Check Kit). Key specifications — Compatible Valve Size: 3/4 in to 1 in; Compatible with Series: 007; Compatible with Mfr. Model No.: 3/4-1 007/LF007; Includes: Spring.

WATTS Second Check Valve Repair Kit: Second Check Valve Repair Kit, 3/4 in/M3 Compatible Valve Size (MPN 007 M2-3/4 2nd Check Kit). Key specifications — Compatible Valve Size: M3; Compatible with Series: 007; Compatible with Mfr. Model No.: 3/4 007M2/LF007M2; Includes: Seat.

WATTS Second Check Valve Repair Kit: Second Check Valve Repair Kit, 3/4 in/M3 Compatible Valve Size (MPN 007 M2-3/4 2nd Check Kit). Key specifications — Compatible Valve Size: M3; Compatible with Series: 007; Compatible with Mfr. Model No.: 3/4 007M2/LF007M2; Includes: Seat.

WATTS First Check Valve Repair Kit: First Check Valve Repair Kit, 3/4 - 1 007M1, Repair Kit, 007 (MPN 007 M1-3/4 - 1 1st Check Kit). Key specifications — Compatible Valve Size: 3/4 in to 1 in; Compatible with Series: 007; Compatible with Mfr. Model No.: 3/4 - 1 007M1; Includes: Seat.

WATTS First Check Valve Repair Kit: First Check Valve Repair Kit, 3/4 - 1 007M1, Repair Kit, 007 (MPN 007 M1-3/4 - 1 1st Check Kit). Key specifications — Compatible Valve Size: 3/4 in to 1 in; Compatible with Series: 007; Compatible with Mfr. Model No.: 3/4 - 1 007M1; Includes: Seat.

More from Watts

View all Watts parts →

WATTS Backflow Preventer Repair Kits: Second Check Kit, 36JC71/36JC72/36JC73/36JC78/36JC79/36JC80 (MPN RK774/774DCDA-CK2-21/2-4). Key specifications — Compatible Valve Size: 2-1/2 in to 4 in; Compatible with Grainger Part No.: 36JC71; Compatible with Series: RK-774; Compatible with Mfr. Model No.: 774; Includes: (2) Cam Check with Check O-Rings.

WATTS Backflow Preventer Repair Kits: Second Check Kit, 36JC71/36JC72/36JC73/36JC78/36JC79/36JC80 (MPN RK774/774DCDA-CK2-21/2-4). Key specifications — Compatible Valve Size: 2-1/2 in to 4 in; Compatible with Grainger Part No.: 36JC71; Compatible with Series: RK-774; Compatible with Mfr. Model No.: 774; Includes: (2) Cam Check with Check O-Rings.

WATTS Backflow Preventer Repair Kits: First Check Kit, 1KYD2/1KYD7/1KYD9, 757/757DCDA, Repair Kit (MPN RK757/DCDA-CK1-RS 21/2-4). Key specifications — Compatible Valve Size: 2-1/2 in to 4 in; Compatible with Grainger Part No.: 1KYD2; Compatible with Series: 757DCDA; Compatible with Mfr. Model No.: 757; Includes: Red Silicone Disc Elastomer.

WATTS Backflow Preventer Repair Kits: First Check Kit, 1KYD2/1KYD7/1KYD9, 757/757DCDA, Repair Kit (MPN RK757/DCDA-CK1-RS 21/2-4). Key specifications — Compatible Valve Size: 2-1/2 in to 4 in; Compatible with Grainger Part No.: 1KYD2; Compatible with Series: 757DCDA; Compatible with Mfr. Model No.: 757; Includes: Red Silicone Disc Elastomer.

WATTS Backflow Preventer Repair Kits: First Check Kit, 6AUW2, 6 in Compatible Valve Size, Repair Kit (MPN RK 757/757DCDA-CK1 6). Key specifications — Compatible Valve Size: 6 in; Compatible with Grainger Part No.: 6AUW2; Compatible with Series: 757; Compatible with Mfr. Model No.: 757; Includes: Check Module O-Ring.

WATTS Backflow Preventer Repair Kits: First Check Kit, 6AUW2, 6 in Compatible Valve Size, Repair Kit (MPN RK 757/757DCDA-CK1 6). Key specifications — Compatible Valve Size: 6 in; Compatible with Grainger Part No.: 6AUW2; Compatible with Series: 757; Compatible with Mfr. Model No.: 757; Includes: Check Module O-Ring.

WATTS Backflow Preventer Repair Kits: First Check Kit, 36JC71/36JC72/36JC73/36JC78/36JC79/36JC80 (MPN RK774/774DCDA-CK1-21/2-4). Key specifications — Compatible Valve Size: 2-1/2 in to 4 in; Compatible with Grainger Part No.: 36JC80; Compatible with Series: RK-774; Compatible with Mfr. Model No.: 774; Includes: Cam Check with a Check O-Ring.

WATTS Backflow Preventer Repair Kits: First Check Kit, 36JC71/36JC72/36JC73/36JC78/36JC79/36JC80 (MPN RK774/774DCDA-CK1-21/2-4). Key specifications — Compatible Valve Size: 2-1/2 in to 4 in; Compatible with Grainger Part No.: 36JC80; Compatible with Series: RK-774; Compatible with Mfr. Model No.: 774; Includes: Cam Check with a Check O-Ring.

WATTS Backflow Preventer Repair Kits: Repair Kit, 6AUW6, 2 1/2 in to 3 in Compatible Valve Size (MPN ARK HMB/BLT VT 2.5-3). Key specifications — Compatible Valve Size: 2-1/2 in to 3 in; Compatible with Grainger Part No.: 6AUW6; Compatible with Series: 5000SS; Compatible with Mfr. Model No.: 6000HMB.

WATTS Backflow Preventer Repair Kits: Repair Kit, 6AUW6, 2 1/2 in to 3 in Compatible Valve Size (MPN ARK HMB/BLT VT 2.5-3). Key specifications — Compatible Valve Size: 2-1/2 in to 3 in; Compatible with Grainger Part No.: 6AUW6; Compatible with Series: 5000SS; Compatible with Mfr. Model No.: 6000HMB.

WATTS Test Cock: Test Cock, 3/4 in Connection Size - Side 1, NPT, Repair Part, Bronze (MPN 3/4 LF-TC 757/957 6-10). Key specifications — Compatible with Series: Watts Series LF-TC, 3/4 in.

WATTS Test Cock: Test Cock, 3/4 in Connection Size - Side 1, NPT, Repair Part, Bronze (MPN 3/4 LF-TC 757/957 6-10). Key specifications — Compatible with Series: Watts Series LF-TC, 3/4 in.

WATTS Backflow Preventer Repair Kit: Complete Rubber Parts Kit, 6LL73, 2 in Compatible Valve Size (MPN RK 009M2 RT 2). Key specifications — Compatible Valve Size: 2 in; Compatible with Grainger Part No.: 6LL73; Compatible with Series: 009; Compatible with Mfr. Model No.: 009QT; Includes: (2) RV Seat O-Ring.

WATTS Backflow Preventer Repair Kit: Complete Rubber Parts Kit, 6LL73, 2 in Compatible Valve Size (MPN RK 009M2 RT 2). Key specifications — Compatible Valve Size: 2 in; Compatible with Grainger Part No.: 6LL73; Compatible with Series: 009; Compatible with Mfr. Model No.: 009QT; Includes: (2) RV Seat O-Ring.

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

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