国产淫语对白丨一级高清免费毛片丨a免费在线观看丨三级三级久久三级久久18丨2019精品国自产拍在线不卡丨四虎影库永久地址丨www国产成人免费观看视频丨日韩欧美中文丨影音先锋中文字幕无码丨人妻激情文学丨黄色免费观看网站丨免费观看性生交大片女神丨久久婷婷五月综合尤物色国产丨www.色天使丨亚洲精品色无码av试看丨欧美日韩久久婷婷丨精品视频在线看丨丰满蕾丝乳罩少妇呻吟91丨伊人色综合久久天天丨亚洲成人一区二区三区

BH41W/H Insulation Check Valve works:
BH41W/H Insulation Check Valve produced and sold by Baigang valve group is lifting the check valve on the basis of welding metal   jacket, used to inject steam or other insulation, cold medium, to ensure   that the valve medium to work properly. Has a good thermal insulation properties, while reducing the pipeline medium heat loss. Insulation   jacket check valve Integral jacket structure design, more uniform   insulation, cold, jacketed carbon steel pipe welding more firm than the   cast. Jacket, outside the body and jacket take over welding, allowing steam or cold water maximum pressure of 1MPa. 
 
BH41W/H Insulation Check Valve Features:
1, lifting insulation check valve has a good thermal insulation properties, while reducing the pipeline medium heat loss. 
2,   Widely used Mainly used in petroleum, chemical industry, asphalt,   metallurgy, pharmaceutical, food and other systems, to prevent the   delivery of conventional high viscosity medium will be solidified   reflux. 
3, the use of carbon steel jacket welded more firm than the casting pressure.

BH41W/H Insulation Check Valve main form connection size: