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Watts RK 919-T 1/4-1/2 Backflow Preventer Repair Kit - Repair Kits & Parts for Watts Backflow Preventers
WattsRepair Kits & Parts for Watts Backflow Preventers

Watts RK 919-T 1/4-1/2 Backflow Preventer Repair Kit

The WATTS Backflow Preventer Repair Kit (MPN RK 919-T 1/4-1/2) is a repair kit for Watts backflow preventers, compatible with the RK-919 series and model 1/4 LF919-QT-S-FS. It includes a Second Check Repair Kit and…

SKU 3G-OTH-436854

Also listed as: RK919T1412 · RK 919 T 1 4 1 2 · RK-919-T-1-4-1-2

Brand
Watts
Item
RK 919-T 1/4-1/2 Backflow Preventer Repair Kit
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
RK 919-T 1/4-1/2
Type
Repair Kit, RK-919
Includes
Second Check Repair Kit
Compatible Valve Size
1/4 in
Compatible with Series
RK-919
Compatible with Mfr. Model No.
1/4 LF919-QT-S-FS

Technical Documents

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

Product Description

The WATTS Backflow Preventer Repair Kit (MPN RK 919-T 1/4-1/2) is a repair kit for Watts backflow preventers, compatible with the RK-919 series and model 1/4 LF919-QT-S-FS. It includes a Second Check Repair Kit and is designed for valves with a 1/4 in compatible size.

Frequently Asked Questions

What is the Watts RK-919 backflow preventer repair kit used for?

The Watts RK-919 repair kit is used to service and restore Watts backflow preventers, specifically the second check valve assembly. It is designed for 1/4 in valves in the RK-919 series, including model 1/4 LF919-QT-S-FS, to maintain backflow protection in plumbing systems.

What are the specifications of the Watts RK-919 repair kit?

The Watts RK-919 repair kit (MPN RK 919-T 1/4-1/2) includes a Second Check Repair Kit. It is compatible with valve size 1/4 in, the RK-919 series, and model 1/4 LF919-QT-S-FS. This kit is a genuine Watts component for backflow preventer maintenance.

Where to buy Watts backflow preventer repair kits worldwide?

You can source the Watts RK-919 repair kit through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations, ensuring you receive genuine Watts parts for your backflow preventer repairs.

How to install the Watts RK-919 second check repair kit?

To install the Watts RK-919 second check repair kit, first isolate the backflow preventer and relieve pressure. Remove the valve bonnet, extract the old second check assembly, and replace it with the new kit components. Reassemble and test for proper sealing per standard plumbing practices.

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 Kit: Backflow Preventer Repair Kit, 1-1/4 LF919-QT-S-FS/1-1/2 LF919-QT-S-FS, Repair Kit (MPN RK 919-T 1-1/4-1-1/2)
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WATTS Backflow Preventer Repair Kit: Backflow Preventer Repair Kit, 1-1/4 LF919-QT-S-FS/1-1/2 LF919-QT-S-FS, Repair Kit (MPN RK 919-T 1-1/4-1-1/2)
Repair kit for Watts backflow preventers, includes second check repair kit. Compatible with 1 in valve sizes, Series RK-919, and model LF919-QT-S-FS. Used to service backflow prevention assemblies in water systems
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Repair kit for Watts backflow preventers, includes second check repair kit. Compatible with 1 in valve sizes, Series RK-919, and model LF919-QT-S-FS. Used to service backflow prevention assemblies in water systems
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Second check repair kit for Watts backflow preventers. Compatible with 3/4 in valve size, Series RK-919, and model 3/4 LF919-QT-S-FS. Used to restore sealing function in backflow prevention assemblies for potable water systems
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First check repair kit for Watts backflow preventers. Compatible with 2-inch valve sizes in the RK-919 series, including model 2 LF919-QT-S-FS. Used to service and restore the first check valve assembly in commercial and industrial water systems
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Repair kit for Watts 809GC8/809GC9 and 919/LF919 backflow preventers. Includes check assembly. Compatible with valve sizes 1-1/4 in to 1-1/2 in. Used to restore proper backflow prevention in water systems
This repair kit includes a check assembly for use in backflow preventers. It is compatible with 3/4 in valve sizes and the RK-919 series, including model LF919. The kit is used to replace the first check assembly in backflow prevention systems
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This repair kit includes a check assembly for use in backflow preventers. It is compatible with 3/4 in valve sizes and the RK-919 series, including model LF919. The kit is used to replace the first check assembly in backflow prevention systems

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This repair kit includes a check assembly for Watts backflow preventers. Compatible with valve sizes 1-1/4 in to 1-1/2 in and designed for the RK-919 series and LF919 model. Used to replace the check assembly in backflow preventers to maintain proper operation
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This repair kit includes a check assembly for Watts backflow preventers. Compatible with valve sizes 1-1/4 in to 1-1/2 in and designed for the RK-919 series and LF919 model. Used to replace the check assembly in backflow preventers to maintain proper operation
Repair kit for Watts backflow preventers, includes disc and spring assembly for first or second check replacement. Compatible with 6 in valve size, series RK-LF709, and models 709, LF709, 36JC56, 36JC62. Used to service backflow preventers in water systems
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Repair kit for Watts backflow preventers, includes disc and spring assembly for first or second check replacement. Compatible with 6 in valve size, series RK-LF709, and models 709, LF709, 36JC56, 36JC62. Used to service backflow preventers in water systems
Repair kit for Watts Series 009 backflow preventers. Includes check assembly. Compatible with valve sizes 1/4 in to 1/2 in and manufacturer model numbers 1/4 - 1/2 009/LF009. Used to service backflow preventers in water systems
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Repair kit for Watts Series 009 backflow preventers. Includes check assembly. Compatible with valve sizes 1/4 in to 1/2 in and manufacturer model numbers 1/4 - 1/2 009/LF009. Used to service backflow preventers in water systems
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This second check kit is designed for repairing the second check valve assembly in backflow preventers. It includes two cam checks with check O-rings and is compatible with Watts Series 774 and models 36JC71 through 36JC80. The kit fits valve sizes from 2-1/2 to 4 inches
Repair kit for Watts 757 and 757DCDA series backflow preventers. Includes red silicone disc elastomer. Compatible with valve sizes 2-1/2 to 4 in. Used to restore check valve function in water systems
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Repair kit for Watts 757 and 757DCDA series backflow preventers. Includes red silicone disc elastomer. Compatible with valve sizes 2-1/2 to 4 in. Used to restore check valve function in water systems
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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
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