Class 150 raised face flanges are suitable for plumbing applications with air water, natural gas and steam. These flanges are for use with schedule 40 or 80 pipes and nipples. They allow for easy access to piping systems by bolting 2 flanges together with a gasket to create a tight seal.
This is a 4″ raised face flange with a 4″ female NPT threads. It is pressure rated up to 150# and meets ANSI B16.5 standards. It is forged of Carbon Steel to offer very good corrosion resistance.