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Watts Second Check Valve Repair Kit: Second Check Valve Repair Kit, LF909M1-DOSY-FS - 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, LF909M1-DOSY-FS

The WATTS Second Check Valve Repair Kit is a repair kit for Watts backflow preventers, designed for use with the Series 909. It includes a spring assembly and is compatible with an 8-inch valve size, specifically the…

SKU 3G-OTH-436773

Also listed as: 90982ndCheckKit · 909-8-2nd-Check-Kit

Brand
Watts
Item
Second Check Valve Repair Kit: Second Check Valve Repair Kit, LF909M1-DOSY-FS
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
909 8 2nd Check Kit
Type
793PG8, Repair Kit
LF909M1
8
Includes
Spring Assembly
Compatible Valve Size
8 in
Compatible with Series
909
Compatible with Mfr. Model No.
8 LF909M1

Technical Documents

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

Product Description

The WATTS Second Check Valve Repair Kit is a repair kit for Watts backflow preventers, designed for use with the Series 909. It includes a spring assembly and is compatible with an 8-inch valve size, specifically the 8 LF909M1 model (part number 793PG8).

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 valve assembly in Watts Series 909 backflow preventers. It is essential for maintaining backflow prevention in commercial and industrial water systems, ensuring compliance with plumbing codes and preventing contamination of potable water supplies.

What are the specifications of the Watts 909 8 2nd Check Kit?

The Watts 909 8 2nd Check Kit (MPN 909 8 2nd Check Kit) is compatible with an 8-inch valve size and the Series 909 backflow preventer. It includes a spring assembly and fits the 8 LF909M1 model (part LF909M1-DOSY-FS). This repair kit is designed for the second check valve position only.

Where to buy the Watts 909 8 2nd Check Kit worldwide?

3G Electric supplies the Watts 909 8 2nd Check Kit worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we source and deliver this genuine Watts repair kit to any country.

How to install the Watts Second Check Valve Repair Kit?

To install the Watts Second Check Valve Repair Kit, first isolate the backflow preventer and relieve pressure. Remove the second check valve cover and old components, then install the new spring assembly and seals from the kit. Reassemble and test per Watts instructions. Always follow local plumbing codes and use proper safety procedures.

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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