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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

Also listed as: LFRK909CK22123 · LFRK 909 CK2 2 1 2 3 · LFRK-909-CK2-2-1-2-3

Brand
Watts
Item
Second Check Valve Repair Kit: Second Check Kit
Category
Repair Kits & Parts for Watts Backflow Preventers
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

Watts
Manufacturer Part Number
LFRK 909-CK2 2-1/2-3
Type
793PG1/793PG2/793PG3/793PG5
LF909
2 1/2-3
Includes
Lubricant
Compatible Valve Size
2-1/2 in to 3 in
Compatible with Series
909
Compatible with Mfr. Model No.
2-1/2-3 LF909

Technical Documents

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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 Part No. 793PG2.

Frequently Asked Questions

What is the Watts second check valve repair kit used for?

The Watts second check valve repair kit is used to service the second check assembly in Watts Series 909 backflow preventers. It restores proper sealing and function in commercial and industrial water systems to prevent backflow contamination. The kit includes lubricant and fits valve sizes 2-1/2 in to 3 in.

What are the specifications of the Watts LFRK 909-CK2 2-1/2-3 repair kit?

The Watts LFRK 909-CK2 2-1/2-3 second check repair kit is compatible with Series 909 backflow preventers and valve sizes 2-1/2 in to 3 in. It includes lubricant and is compatible with Part No. LF909-DOSY-FS and Mfr. Model No. 2-1/2-3 LF909. The manufacturer part number is LFRK 909-CK2 2-1/2-3.

Where to buy Watts backflow preventer repair kits worldwide?

3G Electric supplies Watts backflow preventer repair kits, including the LFRK 909-CK2 2-1/2-3, to customers worldwide. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time. We source and deliver genuine Watts components globally.

How to install a Watts second check valve repair kit?

To install the Watts second check repair kit, first isolate the backflow preventer and relieve pressure. Remove the second check assembly, disassemble it, and replace worn components with the new kit parts. Apply the included lubricant to seals and reassemble. Always follow Watts installation instructions for your specific Series 909 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.

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WATTS Second Check Valve Repair Kit: Second Check Kit, LF909-DNRS-FS/LF909-DNRS-FS, 4 in Compatible Valve Size (MPN LFRK 909-CK2 4)
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