This flange is ANSI (American National Standards Institute). Ranging in size, the 4” and 6” flanges require equal unions to attached to pipes and fittings. ANSI Flanges and bolts are required with nonthreaded butterfly valves. Just like all our product this high-quality ANSI Flange is affordable and will help you finish you air pipe project with ease.

If you are not interested in any of our ANSI flanges or fittings, make sure you check out the rest of our air piping products. From quick connect safety couplers and quick connect plugs to our quality hole saws and pipe deburrers, Aluminum Air Pipe is dedicated to bringing our loyal customers the best in air pipe installation products. If you are interested in bulk orders, download our price list. If you have any questions or concerns, please contact us, and we will be more than happy to help you!