An interesting starting unloader for motor-driven compressors, in which the motor current is cut out or in to stop or start the ... STARTING UNLOADER. the by-pass valve closes and the air passes to the receiver until the predetermined pressure at which current is cut out is reached. ... The operating parts of this new unloading device are few and simple, and consist of a bypass valve (3), a check valve (15), anbsp;...
|Title||:||Canadian Machinery and Manufacturing News|