Control valve set for a completely pneumatical low- and operation pressure control

摘要

PCT No. PCT/CH79/00098 Sec. 371 Date Mar. 10, 1980 Sec. 102(e) Date Mar. 10, 1980 PCT Filed Jul. 10, 1979 PCT Pub. No. WO80/00269 PCT Pub. Date Feb. 21, 1980.A pneumatic control valve for a fully pneumatic system for controlling both the low pressure and working pressure sides of a pneumatic installation. The valve mechanism is designed to increase the switching frequency of the mechanism.