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Watts RK 994/994RPDA-CK1 8-10 First Check Repair Kit - Repair Kits & Parts for Watts Backflow Preventers
WattsRepair Kits & Parts for Watts Backflow Preventers

Watts RK 994/994RPDA-CK1 8-10 First Check Repair Kit

The WATTS Backflow Preventer Repair Kits: First Check Kit (SKU 3G-OTH-436719) is a repair kit for Watts backflow preventers, compatible with Series RK-994 and Mfr. Model No. 994RPDA. It includes a spring and is…

SKU 3G-OTH-436719

Also listed as: RK994994RPDACK1810 · RK 994 994RPDA CK1 8 10 · RK-994-994RPDA-CK1-8-10

Brand
Watts
Item
RK 994/994RPDA-CK1 8-10 First Check 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 994/994RPDA-CK1 8-10
Type
36JD29/36JD30, 994/994RPDA, Repair Kit
Includes
Spring
Compatible Valve Size
8 in to 10 in
Compatible with Series
RK-994
Compatible with Mfr. Model No.
994RPDA

Technical Documents

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

Product Description

The WATTS Backflow Preventer Repair Kits: First Check Kit (SKU 3G-OTH-436719) is a repair kit for Watts backflow preventers, compatible with Series RK-994 and Mfr. Model No. 994RPDA. It includes a spring and is designed for valve sizes 8 in to 10 in.

Frequently Asked Questions

What is the Watts backflow preventer first check repair kit used for?

This repair kit is used to service Watts backflow preventers in commercial and industrial water systems. It replaces the first check valve assembly to maintain backflow protection and prevent contamination of potable water supplies. It is compatible with Series RK-994 and model 994RPDA.

What are the specifications of the Watts 994RPDA first check repair kit?

The kit includes a spring and is compatible with valve sizes 8 in to 10 in. It fits Watts Series RK-994 and model 994RPDA backflow preventers. The manufacturer part number is RK 994/994RPDA-CK1 8-10. It is also compatible with part number 994-NRS.

Where to buy Watts backflow preventer repair kits worldwide?

3G Electric supplies Watts backflow preventer repair kits worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on the RK 994/994RPDA-CK1 8-10 kit.

How to install a Watts first check repair kit?

Isolate the backflow preventer and relieve pressure before disassembly. Remove the old first check assembly and spring, then install the new kit components in the correct orientation. Reassemble the valve and test for proper operation per local plumbing codes. Always follow Watts installation instructions.

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
This repair kit is designed for Watts 994 and 994RPDA series backflow preventers with valve sizes 8 in to 10 in. It includes a cam arm and is used to replace the second check valve assembly, maintaining backflow protection in water systems
Watts
This repair kit is designed for Watts 994 and 994RPDA series backflow preventers with valve sizes 8 in to 10 in. It includes a cam arm and is used to replace the second check valve assembly, maintaining backflow protection in water systems
This repair kit includes a seat for servicing the primary check valve in a backflow preventer assembly. Compatible with 6-inch valve size Watts Series 994RPDA and Model 994 backflow preventers. Used in cross-connection control applications to maintain water system integrity
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This repair kit includes a seat for servicing the primary check valve in a backflow preventer assembly. Compatible with 6-inch valve size Watts Series 994RPDA and Model 994 backflow preventers. Used in cross-connection control applications to maintain water system integrity
Second check repair kit for Watts 994 and 994RPDA series backflow preventers. Includes spring. Compatible with valve sizes 2-1/2 in to 4 in. Used to replace internal check valve assembly in commercial water systems to prevent reverse flow
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Second check repair kit for Watts 994 and 994RPDA series backflow preventers. Includes spring. Compatible with valve sizes 2-1/2 in to 4 in. Used to replace internal check valve assembly in commercial water systems to prevent reverse flow
This second check kit is designed for use with Watts Series 994 backflow preventers in 6-inch valve sizes. It includes an O-ring groove seal to restore proper sealing of the second check valve assembly, helping maintain cross-connection control in plumbing systems
Watts
This second check kit is designed for use with Watts Series 994 backflow preventers in 6-inch valve sizes. It includes an O-ring groove seal to restore proper sealing of the second check valve assembly, helping maintain cross-connection control in plumbing systems
WATTS Backflow Preventer Repair Kits: Total Relief Valve Kit, 994/994RPDA, 994/994RPDA (MPN RK994/994RPDA-VT 21/2-10)
Watts
WATTS Backflow Preventer Repair Kits: Total Relief Valve Kit, 994/994RPDA, 994/994RPDA (MPN RK994/994RPDA-VT 21/2-10)
WATTS Backflow Preventer Repair Kits: First or Second Check Kit, LF719-QT-S, 1 in Compatible Valve Size (MPN RK 719-CK4 1)
Watts
WATTS Backflow Preventer Repair Kits: First or Second Check Kit, LF719-QT-S, 1 in Compatible Valve Size (MPN RK 719-CK4 1)

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This repair kit includes a second check module for Watts 757DCDA series backflow preventers. Compatible with valve sizes 2-1/2 to 4 inches. Used to replace worn or failed second check assemblies in backflow prevention systems for cross-connection control
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Repair kit for Watts 994RPDA backflow preventers. Includes cam arm. Compatible with valve sizes 2-1/2 in to 4 in. Used to replace first-check components in backflow prevention assemblies
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Repair kit for Watts 994RPDA backflow preventers. Includes cam arm. Compatible with valve sizes 2-1/2 in to 4 in. Used to replace first-check components in backflow prevention assemblies
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