| 摘要 |
A adjustment spring device particularly suitable for a pinch solenoid valve provides a spring (4c) placed between a shaft connected to the plunger (4d) of said pinch solenoid valve and the top of a chamber integral with the pinch member (2) in order to load it by the spring compression achieved during the movement of said plunger (4d) under the activation of the corresponding coil (10).
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