I have a Circulating water system that uses raw water on our facility. The P&ID shows an ID of "15 NB Sch 160"on some piping. Does anyone know what is "NB " stands for? I have look at the manual and system description but I have no luck on finding what it means.
Tek-Tips is the largest IT community on the Internet today!
Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!
-
Congratulations cowski on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!
Information about Piping code
- Thread starter SonnieTP
- Start date
"NB" STANDS FOR NOMINAL BORE...I SUSPECT THE TUBE IS 15mm NOMINAL BORE. THE "SCH" IS SHORT FOR SCHEDULE...THIS IS GENERALLY TAKEN AS THE WALL THICKNESS OF THE TUBE...THE HIGHER THE SCHEDOULE THE THICKER THE WALL THICKNESS...THUS THE HEAVIER THE TUBE.
HYDROMECH
HYDROMECH
- Status
Similar threads
- Locked
- Question
- Locked
- Question