高清国产午夜精品久久久久久_超级碰在线_一本一道中文字幕_亚洲国产中文字幕_日韩欧美激情_国产精品久久久久久久久久久久

current location: Home   >> News >> Industry trends

What is the working principle of pneumatic ball valve

Pneumatic ball valve ball is transformed from the plug valve, its center of the ball for the rotation of 90° action, the ball around the valve body center line for rotation to achieve the opening, there is a circular through hole or channel through its axis. When the ball center rotates to 90°, the valve is in the closed state. When the actuator is working, it only needs a small torque to close the valve tightly, so as to achieve the principle of quick cut-off.

Pneumatic ball valves are mainly used in the rapid cut off, distribution and change of media in the flow of the pipeline. The use of v-shaped sphere can accurately adjust the media flow. Pneumatic ball valve it opens and closes quickly, suitable for the use of large and small caliber.

Pneumatic ball valve structure has two kinds of distinction, one is a v-shaped ball core, it adopts a fixed structure, the ball core with a v-shaped incision, the actuator is installed on the locator to achieve the proportion adjustment of the medium containing fiber, granular. The other is the o-type ball core, the o-type ball valve valve core is floating precision casting, the flow channel mouth and the pipe diameter is the same, mainly used as a cut-off switch.



主站蜘蛛池模板: 国产一区二区三区水野朝阳 | 欧美xx一片| 久久精品国产亚洲婷婷 | 天天天天躁天天天天碰 | 蜜臀影院 | 国内a级毛片| jizz日本视频| 手机在线看片国产日韩生活片 | 欧美日韩一区二区三区免费不卡 | 久久精品国产精品亚洲蜜月 | 逼中极品一线天 | 久久一二| 国产亚洲第一页 | 午夜精品久久久久久久99 | 亚洲a在线观看 | 九九九色视频在线观看免费 | aa视频在线| 日韩在线国产精品 | 国产精品日本一区二区不卡视频 | 久久伊人精品一区二区三区 | 国产主播久久 | 人人人人凹人人爽人人澡 | 岛国片在线看 | 久久青草18免费观看网站 | 欧美日韩国产一区二区三区伦 | 久久综合成人 | 激情交换小说 | 黄污视频免费观看 | 国产尻逼视频 | 韩国三级高清手机在线版 | 国产99久久 | 天天色天| 欧美日韩中文字幕久久伊人 | 日本在线视频网址 | 成人在线网址 | 亚洲精品视频在线看 | 久久久亚洲精品蜜桃臀 | 国产高清在线 | 日韩大片免费看 | 毛片a级| 国产人成午夜免费看 |