VALVE HEAD Russian patent published in 1995 - IPC

FIELD: valving. SUBSTANCE: space is made in the housing of the valve head. The space is made up as a polyhedron and has a ring bore from the side of the space face. Spindle with a collar and valving member interacting with the spindle are mounted inside the housing. The collar is interposed between threaded part of the spindle and groove for receiving the sealing ring. Longitudinal grooves, which are spread from the housing face to ring bore, are made in the wall of the housing space parallel to its axis. The spindle is positioned to provide the collar to be inserted in the bore. EFFECT: enhanced reliability. 3 dwg