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The KOER BV12 expansion tank is designed to compensate for excess pressure and expansion of the coolant in closed-type heating systems by absorbing the excess volume of coolant that forms when it is heated. Body material: stainless steel with paint coating. Air nipple: brass. Air pressure in the tank: 1.5 bar. Body wall thickness: at least 1.2 mm. Threaded connection: 3/4. Membrane: EPDM. Maximum liquid temperature: 90°C. Tip: to make the cartridge or mixer faucet last longer, the water supply system should have a filter to remove sand, silt, and rust from the water, which destroy the shut-off element of the mixer. Upon receipt, be sure to check the order compliance, complete set of the product, and its appearance. In case of product damage or incomplete order, contact us by phone for prompt resolution. Delivery is carried out by Nova Poshta, Ukrposhta, or Justin. When ordering and paying for goods before 14:00, it will be shipped on the day of order. When ordering and paying after 14:00 – the next day.