current location: Home   >> News >> Company news

                  Description of LPG ball valve

                  The hand-wheel, handle operated striated pipe globe valve can be installed in any position of the pipe. Handwheel, handle and wetting mechanism are not allowed to be used for lifting. The flow of the medium shall be in the same direction as the arrow shown in the valve body.

                  LPG ball valve, also known as the closure door, is a widely used valve, it is popular, because the process of opening and closing between the sealing surface friction is small, relatively durable, open height is not large, easy to manufacture, easy to maintain, not only suitable for low and medium pressure, but also for high pressure. Its closure principle is, rely on the pressure of the valve, so that the disc sealing surface and seat sealing surface close to prevent the flow of media.

                  LPG ball valve allows only one - way flow medium, installation direction. Its structure length is larger than the gate valve, at the same time the fluid resistance is big, when running for a long time, the sealing reliability is not strong.



                  中文字幕日韩精品无码内射| 欧美 亚洲 日韩 中文2019| 亚洲国产精品无码中文字| 无码精品A∨在线观看| 最近免费2019中文字幕大全| 无码国内精品久久人妻麻豆按摩| 亚洲精品无码久久久久久| 中文字幕亚洲第一在线| 中文字幕在线亚洲精品| 国产亚洲精品无码拍拍拍色欲 | 青春草无码精品视频在线观| 亚洲AV无码成人精品区在线观看| 日韩精品一区二区三区中文字幕| 日韩精品无码一区二区中文字幕| 九九久久精品无码专区| 日韩精品无码久久久久久| 中文字幕无码日韩专区免费| 亚洲中文字幕视频国产| 欧美日韩中文字幕在线观看| 99re热这里只有精品视频中文字幕| 无码欧精品亚洲日韩一区夜夜嗨| 久久精品无码一区二区三区| 精品日韩亚洲AV无码一区二区三区| 亚洲V无码一区二区三区四区观看 亚洲爆乳精品无码一区二区三区 亚洲爆乳无码一区二区三区 | 午夜福利无码不卡在线观看 | 亚洲av无码乱码国产精品| 精品久久久久久久久久中文字幕 | 亚洲精品97久久中文字幕无码| 91无码人妻精品一区二区三区L| 无码国产色欲XXXXX视频| 无码国产福利av私拍| 日韩国产精品无码一区二区三区 | 波多野结衣AV无码| 国产午夜片无码区在线播放| 国产成人AV一区二区三区无码 | 亚洲免费日韩无码系列 | 久久久久亚洲AV无码专区网站| 狠狠精品久久久无码中文字幕| 日韩美无码五月天| 日韩精品人妻一区二区中文八零| 亚洲中文字幕久久精品无码喷水|