The uni-FITT 50L membrane expansion tank serves to maintain the operating pressure in the water supply system, prevent the system from being destroyed by hydraulic shock, and compensates for the temperature expansion of water in the water supply system. The Uni-Fitt expansion tank for water supply works as a buffer tank, allowing you to automate the operation and reduce the number of on-offs of the water supply pump. Water, being inside an elastic EPDM rubber membrane, does not come into contact with the tank body. The maximum operating temperature is +100 degrees Celsius, the maximum operating pressure is 10 bar, the preset pressure is 1.5 bar. The liquid supplied to the expansion tank must be water, the requirements for which are specified in the operating documentation. Connection size 1". Diameter 375mm, height 374mm, length 572mm. The color is blue.