FIELD: technological processes.
SUBSTANCE: essence of the invention is that in the device, in order to eliminate the dependence of the controlled pressure on the position of armature (6) inside control electromagnet (3), annular groove (10) is formed in central magnetic circuit (5) of this electromagnet, facing foot (7), the end of the armature has a conical shape, and stop part (7) is made of a non-magnetic material. Device is equipped with maximum output pressure limiter (11) and handwheel (20).
EFFECT: device makes it possible to provide the required parameters for the accuracy of maintaining the outlet pressure in the pneumatic drive of the current collector.
1 cl, 1 dwg
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