Valve advantages: Along with the advantages of the earlier diaphragm design, the second generation valves incorporate features which provide additional benefits and flexibility.
阀门的优点：除了较早的横膈膜设计的优点以外，第二代阀门还具备了提供另外的好处和适应性的特点。
2
Valve support. Valves must be adequately supported with pipe hangers etc. to prevent additional loading on the valve body.
阀座阀门必须有足够的吊管架做支撑，从而防止给阀体增加额外的负载。
3
Duty cycles greater than 25% are generally needed only when additional work loads are encountered, such as valve modulation or in actuation of larger butterfly valves.