Heatrae Sadia Expansion Vessel 35 Litre 95607315

The Heatrae Sadia 35 litre expansion vessel, part number 95607315, is a pressure vessel fitted to Heatrae Sadia heating and hot water appliances. It accommodates the expansion of water as it heats within a sealed system, limiting the resulting pressure rise and reducing stress on other components. It is listed for use across Heatrae Sadia Products.

• The pressure relief valve discharges water as the appliance heats up
• System pressure rises sharply during heating and falls again once the appliance cools
• The pressure gauge reads low or fluctuates with no visible leak on the system
• Water appears at the vessel's air valve when the charge is checked
• The vessel body shows corrosion, staining or physical damage

• Confirm the appliance model and that a 35 litre vessel is the correct capacity for it
• Compare the connection size, thread and orientation against the vessel being replaced
• Check the system's required charge pressure before fitting and commissioning