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

3G Electric
⌕
RFQ CartGet a QuoteSign inSign up
Watts Backflow Preventer Repair Kits: Check Valve Kit - Repair Kits & Parts for Watts Backflow Preventers
WattsRepair Kits & Parts for Watts Backflow Preventers

Watts Backflow Preventer Repair Kits: Check Valve Kit

The WATTS Backflow Preventer Repair Kits: Check Valve Kit (SKU 844GJ5, MPN LFRK909M1-CK2 1-1/4-2) is a repair kit for Watts backflow preventers. It includes a spring and is compatible with valve sizes 1-1/4 in to 2…

SKU 3G-OTH-436757

Brand
Watts
Item
Backflow Preventer Repair Kits: Check Valve Kit
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.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

Watts
Manufacturer Part Number
LFRK909M1-CK2 1-1/4-2
Type
15W050/15W051/15W052/818DD1/818DD7/818DE2
Includes
Spring
Compatible Valve Size
1-1/4 in to 2 in
Compatible with Series
LF909-FS
Compatible with Mfr. Model No.
LF909
Compatible with Grainger Part No.
818DE2
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 Backflow Preventer Repair Kits: Check Valve Kit (SKU 844GJ5, MPN LFRK909M1-CK2 1-1/4-2) is a repair kit for Watts backflow preventers. It includes a spring and is compatible with valve sizes 1-1/4 in to 2 in. This kit is designed for use with the LF909-FS series and LF909 model backflow preventers.

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.

You might also need

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

Similar products

Matched by specification & description
HAYWARD
HAYWARD
HAYWARD Electrically Actuated Butterfly Valve: For Corrosive Chemicals Media, CPVC, 120V, Wafer, FKM (MPN HRBYV22060V). Key specifications — Brand: HAYWARD.
HAYWARD
HAYWARD
HAYWARD Electrically Actuated Butterfly Valve: For Corrosive Chemicals Media, CPVC, 120V, Wafer, FKM (MPN HRBYV22020V). Key specifications — Brand: HAYWARD.
HAYWARD
HAYWARD
HAYWARD Electrically Actuated Butterfly Valve: For Corrosive Chemicals Media, CPVC, 120V, Wafer, FKM (MPN HRBYV22025V). Key specifications — Brand: HAYWARD.
HAYWARD
HAYWARD
HAYWARD Electrically Actuated Butterfly Valve: For Corrosive Chemicals Media, CPVC, 120V, Wafer, FKM (MPN HRBYV22040V). Key specifications — Brand: HAYWARD.
HAYWARD
HAYWARD
HAYWARD Electrically Actuated Butterfly Valve: For Corrosive Chemicals Media, CPVC, 120V, Wafer, FKM (MPN HRBYV22030V). Key specifications — Brand: HAYWARD.
HAYWARD
HAYWARD
HAYWARD Electrically Actuated Butterfly Valve: For Corrosive Chemicals Media, CPVC, 120V, Wafer, BYV (MPN HRBYV22040E). Key specifications — Brand: HAYWARD.

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
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
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
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
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
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
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
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
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.