HYDRAULIC CONTROL CHECK VALVE
When pump starts, the upstream pressure goes up resulting in pressure increase on the lower side of the main valve membrane. The closing system rises gradually and valve opens slowly. The speed of opening can be adjusted by a needle valve C on the pilot system (located on upper branch of pilot system on scheme above)
Contact Person: Louise Qi
Tel: +86-13389076563
Fax: +86-22-68690009