球阀特点
一;耐磨;由于硬密封球阀的阀芯是合金钢喷焊，密封圈是合金钢堆焊，以硬密封球阀在开关时不会产生太大的磨损。(它的硬度系
数为65-70):
二:密封性能好;由于硬密封球阀的密封是采用人工研磨，直到阀芯与密封圈完全吻合才能使用。以他的密封性能是可靠的。
三:开关轻;由于硬密封球阀的密封圈底部采用弹簧使密封圈与阀芯紧紧抱在一起，以在外界力量过弹簧的预紧力时开关非常轻。
四:使用寿命长:已广泛应用于石油、化工、发电、造纸、原子能、航空、火箭等各部门，以及人们日常生活中。
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