The valve shall be constructed with a molded diaphragm separating the air inlet from the potable water supply to prevent spillage.
The valve shall be constructed with a molded diaphragm separating the air inlet from the potable water supply to prevent spillage.
这种阀门应该配置一个模压隔膜，将空气进口与饮用水供水管道隔离开来，以防止泄漏或溢出。