api 5000The API 5000™ LCMSMS System is one of the most sensitive triple quadrupole mass spectrometers for complex bioanalytical samples.Pressure Rating:- API 6BX-2000 PSI WP (With BX type Ring Gasket) Nominal Size B Flange Thickness T Hub Diameter J1 Groove Depth E Added Hub Thickness J4 263⁄ 4 30 4.97 5.28