| 摘要 |
Herein disclosed a disc type electromagnetic valve which is disposed in the passage of a fluid represented by pressurized gases or air for controlling the flow of the fluid. In a casing at the back of a stator, there is formed a chamber in which a diaphragm is arranged. This diaphragm has its radially inner side connected to either a movable receiver of a spring for biasing an armature apart from the attracting surface of the stator or the armature. The chamber at the back of the diaphragm is caused to communicate with a communication passage of the pressurized fluid through a passage hole which extends through the armature and a valve member. When the pressure of the fluid exerted upon the valve member fluctuates, the diaphragm is moved to automatically adjust the seating force of the valve member against a valve seat.
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