人妻中出无码一区二区三区_免费超爽大片黄_国产激情久久久久影院小草_日韩精品无码免费一区二区三区_亚洲欧美中文日韩V日本_人妻少妇一区二区三区_亚洲AV色香蕉一区二区三区_五月婷婷久久

Hots Keyword: 電動閘閥 電動蝶閥
硬密封蝶閥

The valve adopts three-dimensional eccentric structure, and the sealing ring of the valve body adopts imported elastic metal ring and multi-level sealing ring to make the butterfly plate and the sealing surface of the valve body uniform and reliable, so that the butterfly valve can be closed to achieve no leakage of gas, water and seal, unique structure, flexible operation, labor saving and convenient, long service life, and can replace many valves such as gate valve, globe valve and ball valve.


The valve is a three-dimensional eccentric butterfly valve with high temperature resistance, corrosion resistance and wear resistance. It is a high-tech product updated in the industries of liquefied gas, oil field, acid and alkali.


Technical parameter
Main shape
Connection size
Accessories




EXTENSIVE USE