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Watts Backflow Preventer Repair Kits: First or Second Check Kit, LF709-NRS/LF709-OSY - Repair Kits & Parts for Watts Backflow Preventers
WattsRepair Kits & Parts for Watts Backflow Preventers

Watts Backflow Preventer Repair Kits: First or Second Check Kit, LF709-NRS/LF709-OSY

The WATTS Backflow Preventer Repair Kits: First or Second Check Kit is a repair kit for Watts backflow preventers, compatible with the RK-LF709 series and LF709 model. This kit includes a Disc and Spring Assembly and…

SKU 3G-OTH-436857

Also listed as: LFRK709CK410 · LFRK 709 CK4 10 · LFRK-709-CK4-10

Brand
Watts
Item
Backflow Preventer Repair Kits: First or Second Check Kit, LF709-NRS/LF709-OSY
Category
Repair Kits & Parts for Watts Backflow Preventers
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

Watts
Manufacturer Part Number
LFRK 709-CK4 10
Type
36JC58/36JC64, 709/LF709, RK-LF709
Includes
Disc and Spring Assembly
Compatible Valve Size
10 in
Compatible with Series
RK-LF709
Compatible with Mfr. Model No.
LF709

Technical Documents

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

Product Description

The WATTS Backflow Preventer Repair Kits: First or Second Check Kit is a repair kit for Watts backflow preventers, compatible with the RK-LF709 series and LF709 model. This kit includes a Disc and Spring Assembly and is designed for a 10 in compatible valve size, with manufacturer part number LFRK 709-CK4 10.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the Watts backflow preventer repair kit used for?

The Watts backflow preventer repair kit is used to replace the first or second check assembly in Watts LF709 and RK-LF709 series backflow preventers. It includes a disc and spring assembly for a 10-inch valve size, helping maintain backflow protection in commercial water systems.

What are the specifications of the Watts backflow preventer repair kit?

This repair kit is compatible with a 10-inch valve size and fits Watts LF709 and RK-LF709 series backflow preventers. It includes a disc and spring assembly. The manufacturer part number is LFRK 709-CK4 10, and it is also compatible with part number 36JC58.

Where to buy Watts backflow preventer repair kits worldwide?

You can source Watts backflow preventer repair kits worldwide through 3G Electric. As a global industrial equipment distributor, 3G Electric handles full logistics, customs clearance, and delivery to your location. Contact them for availability and lead time on this repair kit.

How to install a Watts backflow preventer repair kit?

To install the Watts repair kit, first depressurize and isolate the backflow preventer. Remove the old check assembly and replace it with the new disc and spring assembly from the kit. Reassemble the valve and test for proper operation. Always follow local plumbing codes and manufacturer guidelines.

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 Backflow Preventer Repair Kits: First or Second Check Kit, 36JC56/36JC62, 709/LF709, RK-LF709 (MPN LFRK 709-CK4 6)
Watts
WATTS Backflow Preventer Repair Kits: First or Second Check Kit, 36JC56/36JC62, 709/LF709, RK-LF709 (MPN LFRK 709-CK4 6)
WATTS Backflow Preventer Repair Kits: First or Second Check Kit, LF709-NRS/LF709-OSY, 709/LF709, RK-LF709 (MPN LFRK 709-CK4 8)
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WATTS Backflow Preventer Repair Kits: First or Second Check Kit, LF709-NRS/LF709-OSY, 709/LF709, RK-LF709 (MPN LFRK 709-CK4 8)
WATTS Backflow Preventer Repair Kits: First or Second Check Kit, LF709-NRS/LF709-OSY, 709/LF709, RK-LF709 (MPN LFRK 709-CK4 4)
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WATTS Backflow Preventer Repair Kits: First or Second Check Kit, LF709-NRS/LF709-OSY, 709/LF709, RK-LF709 (MPN LFRK 709-CK4 4)
WATTS Backflow Preventer Repair Kits: First or Second Check Kit, 36JC53/36JC54/36JC59/36JC60 (MPN LFRK 709-CK4 2-1/2-3)
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WATTS Backflow Preventer Repair Kits: First or Second Check Kit, 36JC53/36JC54/36JC59/36JC60 (MPN LFRK 709-CK4 2-1/2-3)
WATTS Backflow Preventer Repair Kits: First or Second Check Kit, 36JC68/LF719-QT-S, 719/LF719, RK-LF719 (MPN RK 719-CK4 1-1/4-1-1/2)
Watts
WATTS Backflow Preventer Repair Kits: First or Second Check Kit, 36JC68/LF719-QT-S, 719/LF719, RK-LF719 (MPN RK 719-CK4 1-1/4-1-1/2)
WATTS Backflow Preventer Repair Kits: First or Second Check Kit, LF719-QT-S, 719/LF719, RK-LF719 (MPN RK 719-CK4-1/2)
Watts
WATTS Backflow Preventer Repair Kits: First or Second Check Kit, LF719-QT-S, 719/LF719, RK-LF719 (MPN RK 719-CK4-1/2)

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