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Watts ARK HMB/BLT VT 2.5-3 Backflow Preventer Repair Kit - Repair Kits & Parts for Watts Backflow Preventers
WattsRepair Kits & Parts for Watts Backflow Preventers

Watts ARK HMB/BLT VT 2.5-3 Backflow Preventer Repair Kit

The WATTS Backflow Preventer Repair Kit (SKU 3G-OTH-436866) is a repair kit designed for Watts backflow preventers. It is compatible with valve sizes of 2-1/2 in to 3 in and is compatible with Series 5000SS and Mfr…

SKU 3G-OTH-436866

Also listed as: ARKHMBBLTVT253 · ARK HMB BLT VT 2 5 3 · ARK-HMB-BLT-VT-2-5-3

Brand
Watts
Item
ARK HMB/BLT VT 2.5-3 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
ARK HMB/BLT VT 2.5-3
Type
6AUW6
Compatible Valve Size
2-1/2 in to 3 in
Compatible with Series
5000SS
Compatible with Mfr. Model No.
6000HMB

Technical Documents

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

Product Description

The WATTS Backflow Preventer Repair Kit (SKU 3G-OTH-436866) is a repair kit designed for Watts backflow preventers. It is compatible with valve sizes of 2-1/2 in to 3 in and is compatible with Series 5000SS and Mfr. Model No. 6000HMB. The manufacturer part number is ARK HMB/BLT VT 2.5-3.

Frequently Asked Questions

What is the Watts backflow preventer repair kit used for?

This repair kit restores sealing and internal function in Watts backflow preventers. It is used in commercial and industrial water systems to maintain backflow protection, prevent contamination, and extend equipment life across plumbing, irrigation, and process water applications.

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

The kit (MPN ARK HMB/BLT VT 2.5-3) fits valve sizes 2-1/2 in to 3 in. It is compatible with Watts Series 5000SS and Model 6000HMB. The part number is 6000HMB Hydrant BFP. It includes seals and components for a complete rebuild of the backflow preventer assembly.

Where to buy Watts backflow preventer repair kits worldwide?

3G Electric supplies Watts backflow preventer repair kits worldwide. As a global industrial sourcing partner, we handle logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this kit or other Watts repair parts.

How to install a Watts backflow preventer repair kit?

Installation requires depressurizing the system, disassembling the valve body, and replacing all internal seals and springs per the manufacturer's instructions. Always follow local plumbing codes and use proper tools. For specific torque values or orientation, consult the Watts service manual for Series 5000SS or 6000HMB.

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 servicing Watts Series 5000SS and Model 6000HMB backflow preventers. It is compatible with valve sizes 2-1/2 in to 3 in. The kit includes seals and gaskets for replacing worn internal components, restoring proper backflow protection in water systems
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This repair kit is designed for servicing Watts Series 5000SS and Model 6000HMB backflow preventers. It is compatible with valve sizes 2-1/2 in to 3 in. The kit includes seals and gaskets for replacing worn internal components, restoring proper backflow protection in water systems
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This repair kit includes a second check module for use with Watts 757DCDA series backflow preventers. Compatible with 8-inch valve sizes and Series RK-757. Used to replace the second check assembly in backflow preventers for maintaining proper flow direction in water systems
Repair kit for Watts Series 957 and Model 757 backflow preventers. Includes a check module O-ring. Compatible with 6-inch valve sizes. Used to replace worn check module components in commercial water systems
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Repair kit for Watts Series 957 and Model 757 backflow preventers. Includes a check module O-ring. Compatible with 6-inch valve sizes. Used to replace worn check module components in commercial water systems

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This repair kit includes a second check module for Watts backflow preventers. It is compatible with valve sizes 2-1/2 in to 4 in and fits Series 957 and 957RPDA models. Used to restore check-valve function in backflow prevention assemblies
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