Patent ID: 9534617
Date: 2017-01-03
CPC Classifications: F15B

Claim:
1. An electropneumatic position regulator comprising: a feed air port for connection of a compressed-air supply line; at least one exit air port for connection of a pneumatic drive of a servo unit; a gas-tight housing; a controllable valve group arranged in the position regulator and which includes at least one valve, via which valve group, during normal operation and depending on an actuation of the controllable valve group, one of (i) compressed air supplied via the compressed-air supply line is conductable to the at least one exit air port and (ii) air supplied via the at least one exit air port is dischargeable to an outside, the controllable valve group being arranged within the gas-tight housing; a pressure monitor for monitoring a pressure prevailing in the gas-tight housing and for actuating the controllable valve group such that the controllable valve group is placed into a predefined safe position if the prevailing pressure in the gas-tight housing exceeds a predetermined threshold value; and an aperture for ventilating the gas-tight housing with a predetermined maximum throughflow.