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Watts Relief Valve Repair Kit: Relief Valve Repair Kit, LF909M1-DOSY-FS - Repair Kits & Parts for Watts Backflow Preventers
WattsRepair Kits & Parts for Watts Backflow Preventers

Watts Relief Valve Repair Kit: Relief Valve Repair Kit, LF909M1-DOSY-FS

The WATTS Relief Valve Repair Kit is a repair kit for Watts backflow preventers, designed for use with the Series 909. It includes a piston O-ring and is compatible with an 8-inch valve size, specifically fitting…

SKU 3G-OTH-436814

Also listed as: 9098ReliefValve · 909-8-Relief-Valve

Brand
Watts
Item
Relief Valve Repair Kit: Relief Valve Repair Kit, LF909M1-DOSY-FS
Category
Repair Kits & Parts for Watts Backflow Preventers
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Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

Watts
Manufacturer Part Number
909 8 Relief Valve
Type
793PG8, 909
Includes
Piston O-Ring
Compatible Valve Size
8 in
Compatible with Series
909
Compatible with Mfr. Model No.
8 LF909M1

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

Product Description

The WATTS Relief Valve Repair Kit is a repair kit for Watts backflow preventers, designed for use with the Series 909. It includes a piston O-ring and is compatible with an 8-inch valve size, specifically fitting model number 8 LF909M1 and part number 793PG8.

Frequently Asked Questions

What is the Watts relief valve repair kit used for?

The Watts relief valve repair kit is used to service backflow preventers in the Series 909. It replaces worn piston O-rings to restore proper sealing and prevent cross-contamination in commercial water systems. This kit is designed for 8-inch valve models such as the 8 LF909M1.

What are the specifications of the Watts 909 8 Relief Valve repair kit?

This Watts repair kit includes a piston O-ring and is compatible with an 8-inch valve size. It fits the Series 909 backflow preventer, specifically model 8 LF909M1 and part LF909M1-DOSY-FS. The manufacturer part number is 909 8 Relief Valve.

Where to buy the Watts relief valve repair kit worldwide?

3G Electric supplies the Watts relief valve repair kit worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on this Series 909 repair kit.

How to install the Watts relief valve repair kit?

To install the Watts repair kit, first depressurize and drain the backflow preventer. Remove the relief valve assembly, replace the old piston O-ring with the included one, and reassemble. Always follow the manufacturer's instructions for the Series 909 to ensure proper sealing and compliance.

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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Compatible alternatives & equivalents

Cross-referenced by specification & description
WATTS Relief Valve Repair Kit: Relief Valve Repair Kit, LF909-DNRS-FS/LF909-DNRS-FS, 4 in Compatible Valve Size (MPN 909 4 Relief Valve)
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WATTS Relief Valve Repair Kit: Relief Valve Repair Kit, LF909-DNRS-FS/LF909-DNRS-FS, 4 in Compatible Valve Size (MPN 909 4 Relief Valve)
WATTS Relief Valve Repair Kit: Relief Valve Repair Kit, 4 in to 8 in/M1 Compatible Valve Size, 909 (MPN 245K26)
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WATTS Relief Valve Repair Kit: Relief Valve Repair Kit, 4 in to 8 in/M1 Compatible Valve Size, 909 (MPN 245K26)
WATTS Relief Valve Repair Kit: Relief Valve Repair Kit, 3/4 LF909-QT-FS/1 LF909-QT-FS, 3/4 -1 LF909, Repair Kit (MPN 909-3/4 - 1 Relief Valve)
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WATTS Relief Valve Repair Kit: Relief Valve Repair Kit, 3/4 LF909-QT-FS/1 LF909-QT-FS, 3/4 -1 LF909, Repair Kit (MPN 909-3/4 - 1 Relief Valve)
WATTS Relief Valve Repair Kit: Relief Valve Repair Kit, 1 LF009M2-QT-S/1 009M2-QT/1 LF009M2-QT-FS, 1 009M2/LF009M2, 009 (MPN 009 M2 1 Relief Valve)
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WATTS Relief Valve Repair Kit: Relief Valve Repair Kit, 1 LF009M2-QT-S/1 009M2-QT/1 LF009M2-QT-FS, 1 009M2/LF009M2, 009 (MPN 009 M2 1 Relief Valve)
This repair kit is designed for Watts Series 909 backflow preventers with an 8-inch valve size. It includes a sleeve O-ring and is compatible with model 8 LF909M1. Used to replace worn internal components in commercial and industrial water systems
Watts
This repair kit is designed for Watts Series 909 backflow preventers with an 8-inch valve size. It includes a sleeve O-ring and is compatible with model 8 LF909M1. Used to replace worn internal components in commercial and industrial water systems
WATTS Relief Valve Repair Kit: Relief Valve Repair Kit, LF909-DOSY-FS/LF909-DOSY-FS/LF909-DOSY-FS/LF909-DNRS-FS, 2 1/2-3 LF909 (MPN 909 2-1/2 - 3 Relief Valve)
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WATTS Relief Valve Repair Kit: Relief Valve Repair Kit, LF909-DOSY-FS/LF909-DOSY-FS/LF909-DOSY-FS/LF909-DNRS-FS, 2 1/2-3 LF909 (MPN 909 2-1/2 - 3 Relief Valve)

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