国产午夜福利短视频-国产精品刘玥久久一区-亚洲无线一二三四区手机-国产网站视频-成人av黄色-欧美城天堂网址-性色蜜桃臀x66av-免费无码观看的av在线播放-久久国产精品成人片免费-天天噜噜噜噜噜噜-中文不卡视频-人人妻人人爽人人狠狠-四虎成人久久精品无码-久草视频免费看-久久视精品

Angle globe valve is plug - shaped disc, sealing surface is flat or conical, disc along the center of the fluid to make a straight line of motion.The movement form of the valve stem, there are lifting rod type (stem up and down, handwheel does not rise and fall), there are also lifting rotary rod type (handwheel and valve stem rotate up and down together, nut is located on the valve body).Piped globe valves are for full open and full close only. Adjustment and throttling are not allowed.

Product Model: J44N-40
Nominal Pressure: PN1.6~4.0 (MPa)
Nominal diameter: DN15~300 (mm)
Follow the Specification: STANDARD
Design and fabrication: GB12233/GB 12235
Structure length: GB 12221/JB96 (long series)
Structure length: GB78/JB79 (GB, HG, SH)
Pressure test: GB/T 13927
Logo: GB 12220
Supply: GB/T12252