The replacement flask can be used in cold/hot water sanitary systems, suitable for almost all domestic water installation systems, solar systems, pressure maintenance systems or for garden pumps. This stainless steel 50L bladder pressure tank comes with the bladder and has a volume of 50 litres. Use limit 5.4 bar. This tank has been tested by the manufacturer up to a pressure of 5.4 bar as to its tightness. It comes vertical and has a fitting for a 32.9 mm (1″) domestic pump. In addition, it has a built-in valve to inflate the membrane. This series of steel sheet tanks is welded according to UNI-EN standards and is equipped with a heat-resistant and ageing butyl rubber membrane. Ethylene-propylene diene rubber (EPDM): This rubber belongs to the group of elastomers. It is characterized by its constancy to hot air, bad weather and the influence of ozone. It is low permeable to gases, resistant to chemicals and has good vibration or shock absorbing properties up to 100 ° C. This rubber remains elastic up to a temperature of −70°C. It is particularly used for inner tubes, tire interiors, membranes or steam pipes, or some inner liners of tanks or tanks, protective films, mass for non-vulcanized sealing and straps or ties.