Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
Watts LFRK 709-CK4 4 Backflow Preventer Repair Kit - Repair Kits & Parts for Watts Backflow Preventers
WattsRepair Kits & Parts for Watts Backflow Preventers

Watts LFRK 709-CK4 4 Backflow Preventer Repair Kit

<p>The Watts LFRK 709-CK4 4 Backflow Preventer Repair Kit is a genuine replacement part designed for Watts 709 and LF709 series backflow preventers. This kit is specifically for 4-inch valve sizes and includes the…

SKU 3G-OTH-436845

Also listed as: LFRK709CK44 · LFRK 709 CK4 4 · LFRK-709-CK4-4

Brand
Watts
Item
LFRK 709-CK4 4 Backflow Preventer Repair Kit
Part Number
LFRK 709-CK4 4
Category
Repair Kits & Parts for Watts Backflow Preventers
Available to Order
Also known as:LFRK 709-CK4 4Watts
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
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

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 709-CK4 4
Type
36JC55/36JC61, 709/LF709, RK-LF709
Includes
Cover O-Ring
Compatible Valve Size
4 in
Compatible with Series
RK-LF709
Compatible with Mfr. Model No.
709

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

<p>The Watts LFRK 709-CK4 4 Backflow Preventer Repair Kit is a genuine replacement part designed for Watts 709 and LF709 series backflow preventers. This kit is specifically for 4-inch valve sizes and includes the essential cover O-ring to help maintain the integrity of your backflow prevention system. It is compatible with models 36JC55/36JC61 and the RK-LF709 series, ensuring a precise fit for your equipment.</p><p>Ideal for maintenance teams and facility managers in Singapore, this repair kit ensures your backflow preventer operates reliably. As a Singapore-based supplier, 3G Electric offers SGD quotes on request and handles GST for local buyers, with fast delivery across Singapore and Southeast Asia.</p>

Frequently Asked Questions

What is included in the Watts LFRK 709-CK4 4 repair kit?

The kit includes a cover O-ring, as specified in the product data.

Which Watts backflow preventers is this kit compatible with?

It is compatible with Watts 709 and LF709 series backflow preventers, specifically for 4-inch valve sizes. It also matches models 36JC55/36JC61 and the RK-LF709 series.

Used in

Common applications for Watts
Commercial plumbing – Watts standard capacity water pressure regulators (3/8 LF 26AB) for stabilizing incoming water pressure
Industrial steam systems – Watts 152A series steam pressure regulators for pressure reduction in process and heating lines
Cross-connection control – Watts 757 double check backflow preventers for commercial and industrial water supply protection
Boiler safety – Watts ASME Section XIII temperature and pressure relief valves for overpressure protection in heating systems
Hydronic heating – Watts CP16 pilot-operated pressure regulators for maintaining consistent pressure in steam or water loops
Water hammer mitigation – Watts LF15M2-A water hammer arrestors for absorbing surges in quick-closing valve applications
Not sure this is the right part? Photo-identify it

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

More from Watts

View all Watts parts
Repair kit for Watts Series 909 backflow preventers, compatible with valve sizes 1-1/4 in to 2 in. Includes cover O-ring. For use with models 818DD1, 818DD7, 818DE2, and LF909M1
Watts
Repair kit for Watts Series 909 backflow preventers, compatible with valve sizes 1-1/4 in to 2 in. Includes cover O-ring. For use with models 818DD1, 818DD7, 818DE2, and LF909M1
Watts
Watts
This repair kit is designed for use with Watts SS009 series backflow preventers. It includes a check assembly for servicing the second check valve. Compatible with 1-inch valve sizes, the kit is identified by manufacturer part number RK SS009-CK2 1 and type 793HG5
Watts
Watts
Repair kit for Watts backflow preventers, includes cover O-ring and relief valve spring. Compatible with valve sizes 1/4 in to 1/2 in and with Watts Series RK-LF009 and model LF009. Used to restore relief valve function in backflow prevention assemblies
Watts
Watts
Repair kit for Watts 007 series backflow preventers. Includes cover O-ring. Compatible with 1/2 in valve size and model 007. Used to replace first or second check assembly in potable water systems
Repair kit for Watts backflow preventers, compatible with Series RK-774 and Model 774. Includes a cam check with a check O-ring. Fits valve sizes 2-1/2 in to 4 in. Used to replace worn internal components in backflow prevention assemblies
Watts
Repair kit for Watts backflow preventers, compatible with Series RK-774 and Model 774. Includes a cam check with a check O-ring. Fits valve sizes 2-1/2 in to 4 in. Used to replace worn internal components in backflow prevention assemblies
Repair kit for Watts 919 series backflow preventers. Includes a relief valve stem O-ring. Compatible with 1-inch valve sizes and model 919. Used to replace worn rubber parts in backflow preventers for maintaining proper sealing
Watts
Repair kit for Watts 919 series backflow preventers. Includes a relief valve stem O-ring. Compatible with 1-inch valve sizes and model 919. Used to replace worn rubber parts in backflow preventers for maintaining proper sealing
Watts
Watts
This repair kit includes a check assembly and cover O-ring for the second check position of Watts backflow preventers. Compatible with valve sizes from 1/4 in to 3/4 in and designed for Series RK-SS009 and model SS009M3. Used to replace worn components in backflow prevention assemblies
This repair kit is for Watts backflow preventers, compatible with the 009M2 model and RK-009 series. It includes an upper stem O-ring and is designed for a 2-inch valve size. The kit is used to replace worn internal components, helping to restore proper valve function in water systems
Watts
This repair kit is for Watts backflow preventers, compatible with the 009M2 model and RK-009 series. It includes an upper stem O-ring and is designed for a 2-inch valve size. The kit is used to replace worn internal components, helping to restore proper valve function in water systems

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first