超级碰碰人妻中文字幕,亚洲精品乱码久久久久久日本蜜臀,无人区码卡二卡乱码中国字幕,消息称老熟妇乱视频一区二区

current location: Home   >> News >> Company news

Use and characteristics of gas butterfly valve

Gas butterfly valve USES the same material as the valve body to process into the sealing ring, using electric or pneumatic transmission. Its applicable temperature is determined with the selection of valve body materials, nominal pressure ≤ 0.6mpa, generally applicable to industrial, metallurgical, environmental protection and other pipelines for ventilation to regulate the flow of media. Its main features are:

1. Novel design, reasonable, unique structure, light weight, quick opening and closing.

2, small operating torque, easy to operate, labor saving dexterity.

3, the use of suitable materials to meet the low, medium, high temperature of different media and corrosive media.