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Horizontal expansion tank 50L EU AQUATICA (779102) Bladder SEFA. Operation of the water supply system in automatic mode. Functions: Accumulation of water under constant pressure allows the pump to turn on not immediately when water is consumed from the water supply system, but only as the amount of liquid (pressure) in the expansion tank decreases. Characteristics: Metal body made of painted alloy steel; The membrane used in the expansion tank is made of synthetic ethylene-propylene rubber TM EPDM SEFA. Operating conditions: Maximum ambient temperature: +40°C; Maximum temperature of accumulated liquid: +99°С; Recommended pressure in the air cavity from 1.5 to 1.6 bar; Warranty period: 18 months