精品国产一区二区三区四区阿崩-曰韩精品无码一区二区视频-天天狠天天天天透在线-欧美性插b在线视频网站-高潮流白浆潮喷在线播放视频

Flange connection check valve is suitable for nominal pressure PN1.6-42.0mpa (CL150 ~ CL2500), working temperature -46℃~550℃ in petroleum, chemical industry, pharmaceutical industry, chemical fertilizer, electrical power industry and other working conditions of the pipeline, to prevent the backflow of media.

Product model: H44H/W
Nominal size: NPS1/2"~60" (DN15~1500mm)
Nominal pressure: Class150~2500Lb (PN10~420MPa)
Link: RF, RTJ, BW
Operating temperature: -196℃~+560℃
Main materials: carbon steel, stainless steel, alloy steel