Pneumatic door-actuating system

摘要

In a pneumatic door-actuating system, comprehensive measures intended to protect persons in an emergency are provided. These are, inter alia, an automatic opening of the door when a person is jammed or, when the emergency cock is switched back after the system has been bled via the emergency cock, a violent ventilation of the system is prevented by a throttle function, until the throttle is intentionally cut off again. The invention provides a pneumatic door-actuating system, into which is inserted a valve device which combines both the function of a door valve and the said emergency functions in one housing.