重庆升降平台切断阀透露越低越好，软密封阀的透露是低的，切断效果当然好，但不耐磨、可靠性差。从透露量又小、密封又可靠的双重标准来看，软密封切断就不如硬密封切断好。
Wenzhou lift platform cut off valve to disclose the lower the better, soft sealing valve is disclosed is the lowest, cut off the effect is good, but not wear, reliability. From a small amount of small, sealed and reliable double standards, the soft seal cut off as hard as hard seal.
重庆升降平台的切断阀应尽量选用硬密封，如全功用超轻型调节阀，密封而堆有耐磨合金维护，可靠性高，透露率达70%，曾经能够满足切断阀的恳求。
Wenzhou lift platform should be selected as the cut-off valve seal, such as full function ultra light valve, sealed and the pile has a wear-resistant alloy maintenance, high reliability, the rate reached 70%, has been able to meet the cut off valve.