In a closed heating system water cannot be compressed so any
increase in volume, created by an increase in temperature, has
to be accommodated by an expansion vessel.
When water is cold, the pre-charge pressure forces the
diaphragm against the tank towards the inlet.
As the temperature increases, the expanded water volume
pushes against the diaphragm creating additional volume for
the water to enter.
When the temperature decreases, the pre-charge pressure
forces the water from the tank and back into the main heating
system.
This maintains a constant pressure within the heating system
helping to reduce energy consumption.
• System Flexibility - due to component siting alternatives.
• Cost Savings - due to considerably reduced installation time.
• No Feed and Expansion Tank - hence avoiding “pumping
over” problems, risk of freezing up etc.
• Longer Life - due to virtual elimination of corrosion
problems.
• Noise Reduction - due to higher system pressure, boiler
noise (localised heating) is significantly reduced or
eliminated.
• Low Maintenance Costs - as equipment is virtually
maintenance free, other than for periodic operational
checks