thread question

Ya know it's tough when the computer can't navigate google

http://www.pws.gov.nt.ca/pdf/GEP/05-WaterServices-Apr04.pdf

Pipe threads are a complete nightmare...so many names and derivatives.

"iron pipe thread" is IMO a Generic Name for All Pipe Threads

http://www.onestopfire.com/threads.htm

"The standard AWWA thread is most common used on the inlet end of the corporation stop. This is also known as the Mueller thread, the corporation cock or corporation stop thread. The larger diameter and steeper taper of the AWWA thread has the advantage of greater strength and less wedging under pressure"

Woody