推荐的开启程序：扳手型阀门流量非常大。
Recommended Opening Procedure: The wrench-operated valve has a very large flow capacity.
推荐的开启程序：从彻底打开到关闭，隔膜阀手轮旋转大约11/4圈。
Recommended Opening Procedure: The diaphragm valve handwheel rotates about 1 1 /4 turns from fully open to closed.
推荐的开启程序：从彻底打开到关闭，隔膜阀手轮旋转大约11/4圈。
Recommended Opening Procedure: The diaphragm valve handwheel rotates about 1 1 /4 turns from fully open to closed.
应用推荐