Column check valve (dual spool)

Product Description:

Double valve core structure, used for locking the working fluid in the lower chamber of the hydraulic support system column jack in coal mines, plays a supporting role. When the upper chamber of the column jack is filled with liquid, the liquid control port is simultaneously opened to unlock the lower chamber of the column jack, realizing the descent of the column jack. It is suitable for hydraulic support control systems with high working resistance.

Technical parameters: