FIELD: cleaning liquids by filtration; cleaning motor oil in internal combustion engines. SUBSTANCE: oil filter has housing, cover, reinforcing plate with holes, sealing gasket, filtering shield, lower and upper clamps, anti-drainage and bypass valves. Sealing gasket is made in form of ring with lobe; groove is provided at joint area; angle of inclination of lobe to axis of ring ranges from 25 to 50 deg. Lower clamps is located in one body with anti-drainage valve. EFFECT: enhanced operational reliability; high quality of cleaning oil; improved service characteristics. 4 cl, 2 dwg
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