The Expansion Vessel Calculator is designed to allow the correct sizing of an expansion vessel for a sealed system based on its size.
All calculators are designed to be used on site and available from the Toolbox section of the TradeHelp mobile app.
TradeHelp App for mobile
- Select Toolbox from the main menu
- Go to Heating Calculators and select Expansion Vessel
- Enter the maximum pressure of the boiler/heating system. This is the maximum pressure at which the Pressure Relief Valve on the boiler or system is set to discharge (in bar)
- Enter the pre-charge pressure the pressure vessel is set at (in bar)
- Enter the distance from the vessel to the highest point on the system (m)
- Enter the maximum boiler output in Kw
- Select Get Result
- The results displayed will be the vessel efficiency, the expanded system volume (when boiler is working) and the pressure vessel size required (litres)
- Select Done and Reset to start again