A pneumatic vacuum valve is situated atop a cylinder or convenient working space utilized in conjunction with a pneumatic elevator. The vacuum valve has a coupling unit holding a diaphragm device for actuation of the diaphragm against a flow control opening. An Allen screw uses a simple regulation device to control the flow of air into a working chamber for expansion and contraction of the diaphragm device.
Vacuum valve
2016-02-02
Patent
Electronic Resource
English
Online Contents | 2003