Carbon Steel 12" Flange with National Pipe Tapered (NPT) Pick One Side_GHT The most common fire hydrant

The most common fire hydrant outlet in the USA is 2 1/2 inches with NH / NST threads

Sometimes referred to as “pipe thread” because PVC pipe and schedule 40 pipe are typically threaded in NPT

Please call or check with your local fire department if you have any questions

50 foot lengths are easier to handle and offer more layout flexibility vs

Carbon Steel 12" Flange with National Pipe Tapered (NPT) Pick One Side_GHT The most common fire hydrantNational Pipe Tapered (NPT) Carbon Steel Flange. ASA Forged Flanges have raised shoulder with no raised face. National Pipe Tapered is common in plumbing and some industrial uses. Sometimes referred to as pipe thread because PVC pipe and schedule 40 pipe are typically threaded in NPT. ANSI was originally formed in 1918, when five engineering societies and three government agencies founded the American Engineering Standards Committee (AESC). In 1928,