国产精品久久久久久|成年入口无限观看免费完整大片|中文字幕本久久精品一区|99蜜桃臀久久久欧美精品|国产日韩av在线播放

CN / EN

The structure characteristics of stainless steel flanged ball valves

發(fā)布時(shí)間:2022-07-14瀏覽量:0

The stainless steel flanged ball valve adopts a hard sealing structure with reliable sealing performance, and it also has the dual characteristics of adapting to high and low temperature.

     The pressure on the sealing surface of the stainless steel flange ball valve is the effect of the torque of the transmission device and the medium pressure on the valve plate. When the medium pressure is large, the surface of the valve plate and the cover of the valve seat will be squeezed and tightened, so that the sealing effect will be stronger. it is good.

     The sealing between the valve plate and the valve seat depends on the driving device, and the pressure of the reverse medium increases, the unit positive pressure between the valve plate and the valve seat is less than the medium pressure, and the existing deformation can compensate the tight pressure on the sealing surface of the valve plate and the valve seat. to automatic compensation.

     The soft and hard multi-layer sealing ring is installed on the valve plate, which is directly installed on the valve body, and an adjusting ring is added between the pressure plate and the valve seat, which is a very ideal two-way hard sealing method.



主站蜘蛛池模板: 亚洲国产精品一区二区久久 | 亚洲精品综合一区二区三区在线| 男女无遮挡猛进猛出免费视频国产| 少妇被黑人到高潮喷出白浆| 亚洲一区综合图区| 久久夜色精品国产噜噜av| 国产成人综合精品无码| 国产人妻人伦精品1国产盗摄 | 999zyz玖玖资源站永久| 四虎精品寂寞少妇在线观看| 亚洲午夜久久久精品影院| 鲁大师在线视频播放免费观看| 麻豆果冻国产剧情av在线播放| 无码专区视频中文字幕| 苍井空亚洲精品aa片在线播放| 久久精品视频亚洲一区二区| 久久精品一区欧美| 亚洲欧美中文日韩v在线观看 | 香蕉久久av一区二区三区app| 国产一区二区在线播放视频| 偷窥自拍性综合图区| 老子影院午夜伦不卡无码| 亚洲一区二区三区亚洲| 亚洲熟妇av一区二区三区浪潮| 午夜免费男女aaaa片| 欧美大片va欧美在线播放| 无码亚欧激情视频在线观看| 一区二区av超碰| 天天综合天天做天天综合| 欧美大肥婆大肥bbbbb| 激情欧美一区二区三区小说| 大肉大捧一进一出好爽视频动漫| 男人的天堂在线视频| 综合伊人一区二区| 无码精品a∨在线观看| 精品视频在线播放一区二区| 成片免费观看视频大全| 尤物欧美一区二区三区| 国产高清一区二区在线观看免费| 亚洲另类春色校园小说| 国产无遮挡又黄又爽不要vip软件|