There are horizontal and vertical. A distinctive feature - the liquid is entirely within the membrane and not in contact with the metal surface tank. Replacement of the membrane is produced through the flange, which is fixed with a few bolts. When large amounts of the expansion tank (for example Extrol 15)membrane-type balloon is fixed to the rear end through the nipple fitting to stabilize the fill.
Tanks with a fixed aperture
The inner surface tank is divided into two volumes of the membrane. Diaphragm - Diaphragm, irremovable, rigidly fixed on the perimeter of the tank section. In one volume is air, in the other - coolant or drinking water. The outer surface of the tank is covered with enamel and the inner surface in contact with the liquid - water-resistant paint.
