They are designed to maintain constant water pressure and mitigate hydraulic shock in domestic and industrial installations of water supply systems, which can lead to serious damage in long pipeline systems. The material of the tank is steel, the material of the flange is zinc-plated steel with a plastic insert in contact with water, the membrane material is EPDM (food rubber), the tank colour is powdered thermoemal. Characteristics: material of the hull and support - carbon steel; membrane - EDPM vulcanized rubber (food rubber); the thickness of the walls - at least 1,5 mm; location - vertical; the volume - 50 litres; working pressure - 10 bar; maximum pressure - 15 bar; the nominal air pressure - 2 bar; the water temperature range is (-10...+110) C; the diameter of the tube: 1";