| 摘要 |
A hydraulically-controlled diaphragm pump including a pump chamber formed between a pump head and a pump body, a constant volume intermediate hydraulic chamber formed in the pump body and including a piston driven with reciprocating motion inside the intermediate chamber, a leak compensation volume for compensating leaks from the intermediate chamber being connected thereto by a top-up channel via a free check valve that is not rated and that passes fluid towards the working chamber. The check valve and at least a portion of the compensation volume are housed in a body fitted to the pump body at the high point of the intermediate hydraulic chamber in the working position of the pump. |
