Threaded & Socket Welded Fittings - Pressure Classes and Schedules

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

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)

Related Topics

  • Codes and Standards - Piping codes and standards - ASME, ANSI, ASTM, AGA, API, AWWA, BS, ISO, DIN and more..
  • Piping Systems - Dimensions of pipes and tubes - dimensions, materials, capacities - pressure drop calculations and charts - insulation and heat loss diagrams

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