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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, The O-ring 10 is further arranged at the upper part 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, and the valve body 1 is provided with a liquid inlet cavity and a liquid outlet cavity.　　新版我亲爱的小冤家　　由《风之画员》《来自星星的你》张太侑导演执 导，金璐利编剧执笔。All commodity information, customer evaluation, commodity consultation, netizen discussion and other contents on JD.com are important operating resources of JD.com. Illegal reprinting and use are prohibited without permission.徐阶等人也并未留他。板栗忙道：那咱们走快些吧。板栗哥哥要是回来了，会不会为她高兴？第八营执行任务三天，杀敌数百，且己方伤亡极少。