1、维护得当的话,该薄膜座圈设计在阀门标定压力的0-75%范围内都能提供可以接受的密封程度.
2、用出口流量额定系数重新计算孔口尺寸,其值对比孔口实际面积来看,与被认可的初始API尺寸相同或更小的尺寸是允许的.
英语翻译1.When properly maintained,this film seat design will pr
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