Ball valves with metal sealing and additional soft sealing have been developed based on the results from a series of experiments conducted over many years, which, by means of an elastomer seat insert, guarantee 100 % sealing efficiency and reduce wear to
Ball valves with metal sealing and additional soft sealing have been developed based on the results from a series of experiments conducted over many years, which, by means of an elastomer seat insert, guarantee 100 % sealing efficiency and reduce wear to
带金属密封和辅助的软密封的球阀是基于许多年进行的一系列试验的成果而开发出来的，借助于弹性密封圈，这种阀门可以保证100%的密封效率，并使磨损减少到最低限度，无论介质中起阻碍作用的颗粒的性状如何。