This standard specifies the type and size of non-metallic flat gaskets (hereinafter referred to as gaskets) for pipe flanges. This standard applies to non-metallic flat gaskets for full-face, convex, concave-convex and tongue-and-groove pipe flanges with nominal pressures PN2.5 to PN63 and Class 150 to Class 600.
GB/T 9126-2008 Referenced Document
GB/T 9129 Specifications of Non-metallic flat gaskets for pipe flanges
GB/T 9126-2008 history
2017GB/T 17727-2017 Nonmetal material gaskets for marine flange
2008GB/T 9126-2008 Dimensions of non-metallic flat gaskets for pipe flanges
2003GB/T 9126-2003 Dimensions of Non-metallic flat gaskets for pipe flanges