FIELD: diaphragm units; pocket-type units in particular. SUBSTANCE: housing of diaphragm unit has cavities for delivery and accumulation of concentrate and pocket- type diaphragm module made in form of zigzag diaphragm and sorbing material cloth located on side of pockets; embossed separating members in form of alternating strips oriented to side edge of diaphragm at inclination are made on surface of diaphragm on side of flow-through passages. Diaphragm module is connected with mounting flange over perimeter on one of sides of diaphragm bend; mounting flange is made from material which is tight for filtrate. EFFECT: facilitated procedure of manufacture. 14 cl, 5 dwg
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