不旋转阀杆采用无旋流阀瓣，确保减少扭矩，防止填料受到扭转损坏。
Non rotating stem allows a non-spinning disc, ensures low torque and prevents torsional damage of the packing.
隔膜阀体流通平滑、节流元件为弹性隔膜阀，阀盖上无填料函。
Diaphragm valve body flow smoothly, cutting components for the elastic diaphragm, valve cover stuffing.
隔膜阀体流通平滑、节流元件为弹性隔膜阀，阀盖上无填料函。
Diaphragm valve body flow smoothly, cutting components for the elastic diaphragm, valve cover stuffing.
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