The vessels are fabricated by welding the various
sections together which results in a very reliable
structure suitable for internal pressures up to 10 bar.
Epoxy coated and available in white.
The Eres diaphragm has been specially developed for
solar applications.
Suitable for temperatures up to 130°C, resistant to
ethylene or propylene glycol mixtures and has low gas
permeability.
In the event that the diaphragm within the expansion
vessel could be subjected to continuos temperatures
above 100°C, the vessel must be protected by an
additional vessel (VDI 6002 directive).