reversal valve

基本解釋

Swing-type check off er the least pressure drop and offer simple automatic closure; when fluid flow stops gravity and flow reversal closes valve.
旋啟式止回閥壓降最小，能夠完全自動關閉，即在介質流動停止、重力和介質倒流的狀態(tài)下自動關閉閥門。
Two limit switches are installed on the frame to control the reversal valve to change the movement direction of the rubber knife, at the same time it protects the cover of the cylinder.
機架上裝有上下兩個限位開關，以控制換向閥改變切膠刀的運動方向，同時，也可保護活塞缸缸蓋。
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The in-line spring-actuated lift check also is referred to as the "silent check"because the spring closes the valve before gravity and fluid reversal can slam the valve closed.
由于這種止回閥能夠在重力和介質倒流撞擊啟閉件之前關閉閥門，因此這種直通彈簧驅動升降式止回閥也稱為“靜音”止回閥。