Threaded & Socket Welded Steel Fittings - Pressure Classes vs. Schedules
Pressure classes, schedules and weights of pipes for threaded & socket welded fittings.
|Pipe Schedule and Designation|
- Standard (STD), Extra Strong (XS) and Double Extra Strong (XXS)
- Schedule - numbers assigned to different wall thickness of pipe (i.e. schedule 80)
Threaded fittings are available in pressure classes 2000, 3000 and 6000.
Socket-welded fittings are available in pressure classes 3000, 6000 and 9000.