Dimensions of non-metallic flat gaskets ASME B16.21
used with raised face flanges ASME B16.47 series B

Non-metallic flat gasket
General notes:
  • Dimensions are in millimeters unless otherwise indicated.
  • d1 = Inside diameter.
  • d2 = Outside diameter.
  • Dimensional tolerances outside diameter: +0 / -3.0 mm.
  • Dimensional tolerances inside diameter: ± 3.0 mm.
  • Thickness (t) specified by customer.