ANSI 150 flange, the standard flange with pressure grade CLASS150 (150LB), is the most widely used pressure flange in practice, its relevant flange size requirements and technical parameters are stipulated in flange standards ASME B16.5 and ASME B16.47 and BS3293.
Today, Hebei Leading, as a group company, is not only manufacturing butterfly valves and flanges but also is optimized to meet the needs of our customers with exceptional service and superior quality in flow control industry, such as pipes, pipe fittings, and other kinds of valves, all of them comply with the international standards and requirements.