Proportionales Druckregelventil mit Über- bzw. Unterdruckförderungsmöglichkeit.

摘要

A proportional pressure regulator assembly (10) having a main body (12) with a first inlet (50) adapted for fluid communication with a supply of positive pneumatic pressure, a second inlet (50) adapted for fluid communication with a supply of negative pneumatic pressure, an outlet (54) adapted for fluid communication with a pneumatically actuated device, and an exhaust port (56). A fill regulator valve (14) is included that is adapted to regulate the supply of positive pressure. A vacuum regulator valve (20) is included that is adapted to regulate the supply of negative pressure. An exhaust valve (16) is included that is operable to exhaust pressure from the outlet. A control circuit assembly (24) is also provided that is adapted to receive a command signal and a feedback signal and to regulate the amount of positive pneumatic pressure through the fill regulator valve (14) or the amount of negative pneumatic pressure through the vacuum regulator valve (20) in response to the feedback signal.