国产精品久久久久不卡_欧美中文字幕一区二区三区亚洲_91在线精品观看_国产性70yerg老太_国产精品一区二区久久久久_欧美成人精品欧美一_欧美在线亚洲在线_蜜桃传媒一区二区亚洲av_亚洲欧美日韩爽爽影院_国产高清不卡无码视频

The casting of ball valve body adopts reliable production technology at home and abroad, with reasonable structure and beautiful appearance.The valve seat adopts elastic sealing structure, which is reliable and easy to open and close.The stem adopts the backward sealing and lower mounting structure, so that the stem will not be rushed out when the valve cavity is under abnormal pressure.

Product model: Q611F
Nominal diameter: DN15-DN200
Material of valve body: 304, 316, 316L
Connection: Internal thread
Pressure class: PN1.6-PN6.3MPa
Structure: Floating ball core
Seat seal: PTFE: -20° ~ 180° PPL: -20° ~ 250°
Applicable material: 304, 316, 316L
Suitable medium: water, liquid, gas, oil, acid and alkali corrosive medium.