评论：一个简单的预防性的维护程序和良好的操作程序能够限制这种阀门的缺点。
Comments: a simple preventative maintenance program and good operating procedures can address and limit the disadvantages of this valve.
阀门的缺点：尽管对这一代阀门的改进排除了由于粗暴关闭造成的损害问题中比较严重的问题，但它们还不能完全防止机械损伤。
Valve Disadvantages: Although the improvements to this generation of valves eliminate the more serious problems of damage from abusive closing, they are not totally immune to abuse.
因为阀门设计产生了基本的变化，以克服较早的隔膜阀的缺点，这些阀门被称为第二代隔膜阀。
These valves are referred to as second generation diaphragm valves because basic changes in the valve design have been incorporated to resolve the deficiencies of the earlier diaphragm valves.
应用推荐