A low temperature stop valve, Unlike Example 1, Comprises a valve body 1 and a valve cover 2, A valve stem 3 is arrange in that valve body 1, One end of the valve stem 3 is provided with a valve disc 4, The other end of the valve stem 3 is provided with an adjusting handwheel 5, A low portion of that disc 4 is provided with a guide sleeve 6, The guide sleeve 6 is fixed by means of a connecting piece and a spring pad 8, Between that disc 4 and the guide sleeve 6 is provide a valve seat 7, Between that valve stem 3 and the valve cov 2 there is provided a packing assembly 9, An O-ring 10 is further dispose at that upper portion of the packing assembly 9, The upper part of the O-ring 10 is provided with a packing gland 11, the valve body 1 is provided with an arc-shaped end face 12, the arc-shaped end face 12 forms a line seal between the valve body 1 and the valve seat 7, the contact end of the valve disc 4 and the valve seat 7 is provided with a water grain surface 41, the packing assembly 9 comprises a flexible graphite packing layer, the valve body 1 is provided with a liquid inlet cavity and a liquid outlet cavity, and the two O-rings 10 are respectively arranged on the inner side and the outer side of the packing gland 11.
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39. X.X.53
而且衡山国似乎也出兵了,若是我们不说,让吴芮背了黑锅似乎不大好。
不仅顾小玉,就连付宇锋、苏小梨也同样犹豫起来。
谁能百里挑基
桃花谷呈半封闭状态,除了管事家人进出外,不接外客,也不出去走亲访友。
翰林艺高奇幻网剧。
苞谷见他的愿望又一次被忽视,不禁怔住了——这可是少有的事。
Density (g/cm3)
无天地,无众生,自然没有了因果,落得一个大清静。
仇弟成功盗取胶卷,却也招来敌人的疯狂报复。郭天明被绑架,组织查出胶卷拍摄的是日本细菌实验的数据,日方却以郭天明作为交换胶卷的筹码。面对两难境地,仇弟勇闯虎穴,给敌人沉重打击。
尹旭怒意十足道:好,让你进去搜……龙且心中暗道:你尹旭在强势,终究还是惧怕项羽和范增,今日这营帐我是搜定了。
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