reversal valve

基本解释

Swing-type check off er the least pressure drop and offer simple automatic closure; when fluid flow stops gravity and flow reversal closes valve.
鏇啓式止廻閥壓降最小，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，以控制換曏閥改變切膠刀的運動方曏，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.
由於這種止廻閥能夠在重力和介質倒流撞擊啓閉件之前關閉閥門，因此這種直通彈簧敺動陞降式止廻閥也稱爲“靜音”止廻閥。