Flowvess HWR-V Expansion Vessel
The flowvess HWR-V range are designed for use in closed heating system installations, rated for a maximum operating pressure of 6 bar.
With a wide range of sizes from 8 to 800 litres and a choice of pre-charge pressure. The flowvess HWR-V expansion vessel is also made of top-quality steel, and Epoxy coated in grey.
The two halves of the vessel and the non-replaceable diaphragm. are retained by a crimped collar to give a pressure tight seal on all sizes. Suitable for flow temperatures up to 120˚C, resistant to ethylene or propylene glycol mixtures and has low gas permeability.
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.
- Available as 6 bar Rated
- Capacity: 8 – 800 litre
- Maximum operating temperature: 70˚C
- Suitable for flow temperatures: 120°C
- Each vessel is factory tested.
- 5 Year Warranty
