Design

• Gaskets confined by the inside and outside diameters
  • Gaskets inside diameter = groove inside diameter plus 1/16″
  • Gaskets outside diameter – groove outside diameter less 1/16″
• Gaskets confined by outside diameter
  • Gaskets inside diameter = flange inside diameter plus a minimum of 1/8″
  • Gaskets outside diameter – groove outside diameter less 1/16″
• Non confined gasket
  • Gaskets inside diameter = flange inside diameter plug 1/8″
  • Gaskets outside diameter = bolt circle diameter less bolt diameter

Style 923/927

• Flat double jacket gasket typically used in heat exchangers or large size reactors in chemical plants
• Compensates for distortions and irregularities of flanges
• Style 927 is similar to 923 with the addition of flexible graphite facing
• Thickness of 5/32″ to 1/4″

Style 920

• Round single jacket gasket typically used where the seating stress and width are limited
• Can be manufactured in circular or oval shape
• Maximum width is 1/4″ and standard thickness is 3/32″

Style 926

• Similar to 923 but the metallic jacket is corrugated
• The corrugations act as a labyrinth

Style 929 

• Similar to 926 with the corrugated metallic filler
• Used in applications where it is necessary to have a gasket without non-metallic materials, temperature limits and chemical resistance