Altecnic offer a complete range of Expansion Vessels to meet the requirements of most heating or cooling systems. Expansion vessels for heating systems are manufactured to meet the requirements of PED 97/23/EC Directive and BS EN 13831:2007 ‘Closed expansion vessels with built in diaphragm for installation in water’.The two halves of the vessel and the diaphragm are retained by a crimped collar to give a pressure tight seal. Non-replaceable diaphragm and epoxy coated in grey. Suitable for flow temperatures up to 120˚C, resistant to ethylene or propylene glycol mixtures and has low gas permeability. Altecnic Expansion Vessels are all tested according to the Pressure Systems Directive.Comes with bracketMax. working pressure 3 barTest pressure 1.5 x max working pressureMax. vessel operating temperature 70˚ CMedium temperature – opening: 3˚CFactory pre-charge 1.5 bar – nitrogen.
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