Clack V4427 WS2H/3 PCB Relay Expansion Kit

Clack V4427 WS2H/WS3 PCB Relay Expansion Kit

The Clack V4427 PCB Relay Expansion Kit is an essential plug-and-play circuit board upgrade designed specifically for the heavy-duty Clack WS2H and WS3 commercial control valves.

This expansion board seamlessly integrates with the main valve PC board, providing two fully programmable dry contact relays. It allows commercial system builders and maintenance engineers to easily synchronize their water treatment vessels with external auxiliary equipment. Whether you are building a new multiplex system or replacing a burnt-out board on an existing commercial site, this genuine Clack OEM part ensures reliable, synchronized operation.

Key Applications

Adding the V4427 relay board allows your Clack WS2H or WS3 valve to trigger external devices during specific stages of service or regeneration, including:

• Chemical Feed Pumps: Trigger dosing pumps precisely when the valve goes into service or backwash.

• Motorized Alternating Valves (MAVs): Essential for setting up twin-alternating or multi-tank parallel systems.

• External Solenoids & Diaphragm Valves: Drive external shut-off valves to prevent hard water bypass during regeneration.

• Remote Lockouts & Alarms: Send signals to building management systems (BMS) when a regeneration cycle is initiated.

Technical Specifications

• Part Number: V4427

• Compatibility: Exclusively for use with Clack WS2H (2-inch) and WS3 (3-inch) electronic control valves. (Note: Not compatible with standard WS1, WS1.25, WS1.5, or standard WS2 valves).

• Relays: Features two programmable, single-pole double-throw (SPDT) dry contact relays.

• Installation: Direct mount to the internal valve backplate; connects to the main board via the included ribbon cable.

Supply & Delivery Information

As a genuine Clack replacement component, the V4427 is supplied brand new and ready for immediate integration into your commercial builds or site repairs. We supply this part individually packaged and ready for rapid dispatch directly to your facility or commercial job site.