api 5000The API 5000™ system makes it easy for you to get you the answers you need - even if you're just getting into mass spectrometry. From automated methods development to quick, simple*Tolerances and ring gaskets are according to API 6A. Materials for API 6A Type 6B 5000 psi(34.5 MPa) Weld Neck RTJ Flange, API 6A 6B Weld Neck