YK-01H/ YK-02H/YK-03H  YK-01L/YK-02L/YK-03L Series single cut single thrower auto-reset pressure control

YK-01H/ YK-02H/YK-03H  YK-01L/YK-02L/YK-03L Series single cut double thrower auto-reset pressure control

YK series manual reset pressure control

YK series extra high pressure  auto-reset pressure control