API Flange - Model B31 - 150Lb / 300 Lb - Triple Offset Buttferly Valves
The butterfly valve is provided with triple-eccentric multilayer metal sealing structure. It is mainly used for regulating flow rate and cutting off or connecting fluid for different mediums in the pipeline in such sectors including petroleum, natural gas, chemical industry, metallurgy, power plant, water supply and drainage, etc.
- Valve design and manufacture as per ASME B16.34-2004.
- Flange connection as per ANSI BI6.5ASME BI6.47.
- Valve body structural length as per API 1609-2004.
- Valve check and test as per API 598.