STEUERVENTIL ZUR BETAETIGUNG UND POSITIONIERUNG EINES KOLBENS EINES DOPPELTWIRKENDEN DRUCKZYLINDERS.

摘要

The air entry and discharge for a double acting pneumatic cylinder piston is controlled by a valve (1) with a spindle (9) rotated manually. It has projecting two arms (8) moved against the plungers of air entry and discharge valves (4-7) with cylindrical parts held by springs (11) against smaller dia. seatings (10). The valve plungers are arranged symmetrically each side of a plane (3) formed by the junction line between upper and lower parts of the valve body. The ends of the arms (8) are tapered and the valve elements have spherical, ring-shaped sealing surfaces (12), which are about 25 percent larger than the seating surfaces.