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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, 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 11.1. Xie Na　　建平（汪明荃饰）、孝礼（秦沛饰）及景良（郭峰饰），这段三角恋情辗转一生，各人最后的感情依归，却令人竟意想不到…More other physical signs of death may include:杨长帆也跟着沈悯芮的话品味，确实，正在遭遇的时候脑袋里应该是空的，应该是刚刚被搞完，或者眼看着要被搞了。“当宿命的转盘开始转动，当宅男漫画家遇到下界衰神，是天生一对，还是前世今生?”宅男漫画家陈蓦（傅汉源 饰）路遇软萌可爱的小萝莉静离（李梓 饰），在对方的死缠之下带回了这个意外的“同居”室友，从此开启了霉运不断的生活，而在终于了解到软萌衰神的真面目后，这对冤家的故事却更加波谲云诡起来……旁人如何解读这一章，姑姑不管，我自有理解。