国产公开人成免费_在线A一级毛片免费完整视频_亚洲欧洲日本视频在线_八戒八戒神马影院www_欧美亚洲另类丝袜综合网_99精品無碼人妻一區二區三區_一级做人爰全程视频在线看_精品一区国产VR_欧洲美熟女乱又伦视频免费_黄页免费在线播放

NRS ammonia globe valve often use oxygen, nitrogen, hydrogen, argon and other gases.These gases are generally stored in special high-pressure gases.When in use, the globe valve is used to reduce the gas pressure to the range required by the experiment, and then fine-tuned by other control valves to make the gas input into the service system.The commonly used reducing valve for ammonia globe valve, referred to as ammonia valve.

Product Model: J41B
Nominal diameter: DN15~DN300mm
Nominal Pressure: PN16-PN25
Applicable media: liquid, gas, ammonia, nitrogen, hydrogen
Applicable temperature: -10 ~150  ℃
Valve body material: cast iron, cast steel
Driving mode: manual, gear drive, electric, pneumatic, etc.
Design and Manufacturing: GB12235
Structure length: GB12221
Flange size: GB9113 JB79
Pressure-temperature: GB9131
Test-Inspection: GB/T13927 JB/T9092