Altecnic Stainless Steel Expansion Vessel 150 Litre SSV150C

The Altecnic 150 litre Stainless Steel Expansion Vessel is a pressure vessel for sealed heating and boiler systems, manufactured by Altecnic. It absorbs the expansion of heated water within the system to limit pressure rise and protect components such as the pressure relief valve. The vessel body is constructed in stainless steel.

• Pressure relief valve discharging water during heat-up, indicating the vessel is no longer absorbing expansion.
• System pressure rising quickly from cold to hot and not returning on cooling.
• Vessel feels heavy or full of water when tapped, suggesting a failed internal diaphragm or membrane.
• Visible corrosion, pitting or perforation of the vessel shell.
• Water weeping from the vessel body or its connection points.

• Confirm that a 150 litre vessel matches the system volume and expansion requirement.
• Check the connection size, type and orientation on the existing vessel or pipework.
• Verify the maximum system pressure and the vessel's pre-charge setting against the system design.
• Measure the available installation space, including clearance for the vessel and its connections.