Hrm Pressure Vessel 7 Litre Expansion Sys440

Precharge 1 bar Max pressure 3 bar Max temp 90degC

The HRM 7 Litre Pressure Vessel is a genuine replacement expansion vessel for HRM boilers, designed to regulate and stabilise pressure within the heating system. It provides a cushion of air or gas that compresses as system pressure increases, preventing damage to components and ensuring efficient operation.

• Capacity: 7 litres

• Genuine HRM boiler part

• Maintains stable system pressure to prevent over-pressurisation

• Reduces strain on pipework, valves, and seals

• Compatible with selected HRM oil-fired boilers

• Covered by HRM manufacturer’s guarantee

• Manufactured to original specifications for reliability and long service life

• Easy to fit – direct replacement for worn or failed vessels

An essential boiler component for protecting your heating system and maintaining optimal performance.