This standard specifies the structural type, basic parameters and technical requirements of non-metallic gaskets for steel shell-and-tube heat exchangers. This standard applies to non-metallic gaskets for steel shell-and-tube heat exchangers with design temperatures higher than -20°C to 450°C and design pressures not greater than 6.4MPa.
JB/T 4720-1992 history
1992JB/T 4720-1992 Non-metallic gasket for tubular heat exchanger