...6-1989 流量特性偏差(Mpa)P2G GB12246-1989 最小压差(Mpa) 0.15 0.15 0.2 0.4 0.8 1.0 渗漏量 X/F(聚四氟乙稀/橡胶)：OY(硬密封)：GB12245-1989上海奇众阀门订货须知： 我们可以为您提供专业的解决方案，包括设计、定做、成套、运行、服务。
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偏心金属硬密封球阀已在一些新装置建设和老装置改造中取代了一部分闸阀而得到应用。
Now gate valves have been replaced by eccentric metal hard seal ball valves in the construction of some new unit and old unit revamping.
提出了一种双向压金属硬密封蝶阀，讨论了这种蝶阀的结构、工作原理、密封的可靠性及特点。
It also provides a bilateral metal hardware sealed butterfly valve, and the structure of butterfly valve, working principle, reliability and features of seal are discussed.
硬密封陶瓷球阀是我公司新开发的新产品，该产品主要用于电力、石油、化工等管路系统上启闭装置。
Haed sealed ceramic ball valve new product that our company develop newly, product this use electricity, petroleum, chemical industry pipeline system open and close and close the device mainly.
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