The two independent external travel stop adjustment bolts can adjust 5 at both open and close directions easily and precisely 两个独立的行程调节螺钉可以进行方便、精确5的调节开、关位置。
The operating organization should be designed at operation convenience , and the full open and close switch should be limited by the offside organization 阀门的操作机构设在便于操作的地点,在全开、全关位置有限制越位的机构。