高清国产一区二区三区在线-国产在线精品一区二区夜色-亚洲人成77777在线播放网站-亚洲精品久久久久久中文-无码 人妻 在线 视频

Electric trunnion ball valve is generally used for high pressure and a variety of large diameter pipeline, using the upper and lower stem to fix the spool (shaft support) and movable sealing seat design, when closed, under the action of medium pressure, the ball will not produce displacement, work more stable.Electric fixed ball valve is usually connected with the ball on the upper and lower shaft, with rolling bearing, or sliding bearing, in order to reduce the opening and closing of the shaft journal friction, reduce operating torque, in various industries have been widely used.

Product model: Q947F
Nominal diameter: DN15~500mm
Material of valve body: WCB, 304, 316, 316L
Connection: Flange
Pressure class: PN1.6-6.4MPa
Structure: Floating ball core
Seat seal: PTFE: -20℃ ~ 180℃ PPL: -20℃ ~ 250℃
Spool material: 304, 316, 316L
Valve stem material: 304
Applicable medium: water, oil, steam, etc