大香视频蕉五月婷婷,亚洲一级中文字幕免费观看,亚洲男人的天堂在线,国产日韩一区二区三区,亚洲免费无码片中文字幕,无码午夜福利视频一区

current location: Home   >> News >> Company news

All welded ball valve characteristics

All - welded ball valves have the following five main characteristics

1. The valve adopts carbon steel seamless steel pipe pressed into shape as an integral welded ball valve.

2. The stem is made of AISI303 stainless steel, and the valve body is made of AISI304 stainless steel, which has been finished and ground, and has excellent sealing performance and corrosion resistance.

3. Carbon reinforced PTFE inclined surface elastic sealing ring is used to seal the surface of the sphere under negative pressure, so that the sealing can reach zero leakage, long service life and other advantages.

4. All-welded ball valve connection: there are welding, thread, flange and other options for users. Transmission mode: handle, turbine, pneumatic, electric and other transmission structure, flexible and portable switch.

5. The valve is compact in structure, light in weight, easy to keep warm and easy to install.