论文部分内容阅读
一种特殊的旋塞巳开始被应用,它主要是利用一种具有突出密封性能的 O 字形密封圈,依靠流体本身的压力来达到密封目的。压力愈大,则密封愈好,因此,旋塞是不易泄漏的。它的大小以阀身的孔径为准,规格从1/4时(6毫米)起到3时(76毫米),最大达12时(304毫米);使用压力范围从0～50.00磅/时~2(即0～850公斤/厘米~2;工作温度自-80℉(-62℃)起到400℉(204℃)止。
A special type of plug has started to be used. It mainly uses an O-ring with outstanding sealing performance and relies on the pressure of the fluid itself for sealing purposes. The greater the pressure, the better the seal, therefore, the cock is not easy to leak. Its size is based on the bore of the valve body and ranges from 1/4 in. (6 mm) to 3 in. (76 mm) and up to 12 in. (304 mm). Operating pressure ranges from 0 to 50.00 lb / 2 (ie 0 to 850 kg / cm 2); operating temperature from 400 ° F (204 ° C) at -80 ° F (-62 ° C).