作者: Guido A. Salvato
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摘要: A magnetically locked fluid valve having a particular utility in fire hydrant to prevent unauthorized usage thereof. The includes an operating nut mounted on top of one end actuator shaft, and magnetic lock is located immediate proximity thereto. shaped magnet adapted be placed around the shaft adjacent lock, after which wrench can applied control operation hydrant. tumblers are shifted position response placement shaft. upper section coupled lower valve. positioned between sections, freely rotatable relative when removed, but thereto thereon.