手動、氣動與電動球閥:依據閥門的操作方式進行選擇
A manual, a pneumatic and an electric ball valve can share the same body, the same seats and the same fluid conditions. The difference is not inside the valve. It is in who or what rotates the ball, how often it happens, and what the system should do when air or power is lost. Selection […]
手動、氣動與電動球閥:依據閥門的操作方式進行選擇 閱讀全文 »




