PipeBase: Pipe Fitter Charts

The piping reference that field crews and designers actually need — every lookup driven by a live dimensioned drawing, working entirely offline. SEVEN MODULES • Pipe Schedule — ASME B36.10M & B36.19M, NPS 1/8"–48", every schedule including stainless 5S–80S, with a built-in length calculator for surface area, volume, and water-filled weight • Fittings — B16.9 butt-weld (elbows, tees, reducers, caps, stub ends) and B16.11 forged socket-weld & threaded, classes 3000/6000/9000 • Flanges — B16.5 Class 125–2500 plus B16.47 Series A & B through 48", with drilling, bolting, and weights • Valves — B16.10 face-to-face and end-to-end for gate, globe, check, and ball valves, RF/BW/RTJ • Branch Connections — MSS SP-97 Weldolet, Sockolet, Thredolet • Line Blanks — B16.48 spectacle blinds, paddle blanks, and spacers • Gaskets — B16.21 flat ring and full face with drilling BUILT FOR THE FIELD • Global search: type "2 300 wn" and jump straight to the 2" Class 300 weld neck flange • Tap any drawing to flip decimal ⇄ trade fractions (nearest 1/16") • Inch/mm everywhere, NPS or DN, your choice • Pressure–temperature ratings per class (material group 1.1) • Bolt-up data: stud counts and sizes, torque-per-stress tables, and a star-pattern tightening sequence drawn for your flange's bolt count • Feet-inch-sixteenths trade calculator with memory • Favorites, recents, side-by-side schedule comparison, and shareable datasheets with standard citations • 100% offline — nothing to sign into, nothing tracked, no ads EVERY NUMBER VERIFIED Dimensional data is compiled from published tables of the governing ASME/MSS standards and locked by automated cross-checks against independent sources. Every value cites its standard. Always verify critical dimensions against the current standard edition before fabrication.