Product Description Used to control the hydraulic support dome of the coal mine, actually and currently in the working cavity of the dome high-pressure liquid locking, so that the metal structure of the bracket plays an auxiliary role: when switching and switching. The dry dome of the other liquid cavity, while the liquid control hole opens the working cavity, the working cavity returns the liquid, the dry dome is squeezed. This valve is characterized by the ability to meet the requirements of two separate circuits to control the same domecrat, mainly for a bracket requiring dual hydraulic control of the domecrat, such as side protection of the telescopic beam and other control. Specifications Rated pressure: Rated flow rate 50 Mpa: 125 l/min Interface flow rate: K J10, DN10 Material: medium carbon/stainless steel/1 Cr18Ni9