A range of vertical expansion vessels for use in heating systems and potable water. The expansion vessels are manufactured to the following standards PED 97/23/EC Directive and BS EN 13831:2007 ‘Closed expansion vessels with built in bladder for installation in water’. Nitrogen filled to improve life span by reducing corrosion inside the vessel, and prevents loss of pre-charge pressure.
Carbon steel connections
Synthetic rubber diaphragm
Max. working pressure - 10 bar
Manufactured carbon steel shell with a two or three part welded construction
Pre-pressurised air chamber with synthetic rubber compound bladder.
The internal surfaces of the vessel in contact with the water are coated against corrosion.
Sizes 60 to 1000 litres (except 140 litres) have a replaceable bladder.
External surfaces have a blue durable powder expoxy coated finish.
Suitable for temperatures up to 70°C, resistant to ethylene or propylene glycol mixtures and has low gas permeability.
Next Day Available
Vessel Pre-Charge Pressure
4 bar - Nitrogen
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