Piping Systems and Applications!  - Resources, Tools and Basic Information for Engineering and Design.
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Piping Systems and Applications! - Resources, Tools and Basic Information for Engineering and Design.

Threaded & Socket Welded Fittings - Pressure Classes and Schedules

Pressure classes, schedules and weights of pipes for threaded & socket welded fittings

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Pipe Designation Schedule/MFR
Pressure Class 2000 3000 6000 9000
Threaded Fittings 80/XS 160 XXS  
Socket Fittings   80/XS 160 XXS

Standard (STD), Extra Strong (XS) and Double Extra Strong (XXS)

Schedule - Numbers assigned to different wall thickness of pipe (i.e. schedule 80)

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