VENTILATION CAP FOR A HYDRAULIC-OIL TANK

摘要

The tank (1) containing hydraulic fluid for hydraulic equipment is fitted with a breather cap (4) which is secured by a bolt (3). The latter has a flat (6) which forms a narrow passage between the interior of the tank and the interior (24) of the cap. The cap is made in two parts (10,11) which are fitted together with a labyrinth (25,26) formed between the abutting surfaces on a threaded lower part (11) fastening.