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WATTS Second Check Valve Repair Kit: Second Check Kit - Repair Kits & Parts for Watts Backflow Preventers
WattsRepair Kits & Parts for Watts Backflow Preventers

WATTS Second Check Valve Repair Kit: Second Check Kit

The WATTS Second Check Valve Repair Kit (Second Check Kit) is a repair kit for Watts backflow preventers, compatible with Series 909 models. It is designed for valve sizes 2-1/2 in to 3 in and includes lubricant. The…

SKU 3G-OTH-436701

Brand
Watts
Item
Second Check Valve Repair Kit: Second Check Kit
Category
Repair Kits & Parts for Watts Backflow Preventers
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Technical Specifications

Watts
Includes
Lubricant
Compatible Valve Size
2-1/2 in to 3 in
Compatible with Series
909
Manufacturer Part Number
LFRK 909-CK2 2-1/2-3
Compatible with Mfr. Model No.
2-1/2-3 LF909
Compatible with Grainger Part No.
793PG2
View Full Spec Sheet

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

Product Description

The WATTS Second Check Valve Repair Kit (Second Check Kit) is a repair kit for Watts backflow preventers, compatible with Series 909 models. It is designed for valve sizes 2-1/2 in to 3 in and includes lubricant. The kit is identified by manufacturer part number LFRK 909-CK2 2-1/2-3 and is compatible with Grainger Part No. 793PG2.

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: First Check Kit, 1KYE6/793HG6, Check Assembly/Cover O-Ring (MPN RK SS009M3-CK1-1/4-3/4). Key specifications — Compatible Valve Size: 1/4 in to 3/4 in; Compatible with Grainger Part No.: 1KYE6; Compatible with Series: RK-SS009; Compatible with Mfr. Model No.: SS009M3; Includes: Cover O-Ring.
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WATTS Total Relief Kit: Total Relief Kit, 793HG7/793HL8/818DD2, 2 in/M2 Compatible Valve Size, 009 (MPN 009 M2 2 Total Relief Kit). Key specifications — Compatible Valve Size: M2; Compatible with Grainger Part No.: 818DD2; Compatible with Series: 009; Compatible with Mfr. Model No.: 2 009M2/LF009M2; Includes: Cover O-Ring.
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WATTS Total Relief Kit: Total Relief Kit, 793HG7/793HL8/818DD2, 2 in/M2 Compatible Valve Size, 009 (MPN 009 M2 2 Total Relief Kit). Key specifications — Compatible Valve Size: M2; Compatible with Grainger Part No.: 818DD2; 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, 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.
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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.