Santon 94.970.009 ALK02 Expansion Vessel

ALK02 Expansion Vessel Kit – With Relief Valve & Non-Return Valve for Unvented Hot Water Systems

The ALK02 Expansion Kit is a compact, compliant solution for managing pressure in unvented water heating systems. It includes an expansion vessel, expansion relief valve, and a non-return valve—ideal for straightforward installations where a pressure-reducing valve is already in place.

• Essential System Protection: Designed for safe pressure management in unvented hot water heater installations.
• Expansion Vessel: 1/2” BSP male threaded connection for direct integration into the hot water circuit.
• Expansion Relief Valve: 1/2” BSP male inlet and 1/2” BSP female discharge ensures reliable pressure relief in the event of overpressure.
• Non-Return Valve: 15mm x 15mm compression fitting prevents backflow and helps maintain system integrity.
• Compact & Installer-Friendly: Simple kit layout for fast and effective installation in limited space environments.

Technical Specification

• Expansion Vessel: 1/2” BSP Male
• Relief Valve Connections: Inlet 1/2” BSP Male, Discharge 1/2” BSP Female
• Non-Return Valve: 15mm x 15mm Compression
• Pressure Reducer: Not included
• Application: For use with unvented hot water systems

✅ Use the ALK02 Expansion Kit for safe, efficient pressure control in unvented hot water systems where a reducing valve is not required!