国产a精品视频,2020黄片在线免费观看,久久亚洲精品女人黄,亚洲国产一级在线观看在,久久精品毛片免费不卡,免费国产a深夜影院

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.


若尔盖县| 土默特右旗| 泰兴市| 新邵县| 平阳县| 叶城县| 普兰店市| 乌审旗| 大港区| 庆云县| 海伦市| 军事| 紫云| 宁陕县| 河南省| 鹿泉市| 渭源县| 大田县|