This part of GB/T 29463 specifies the structural type and size of non-metallic soft gaskets. This section applies to non-metallic soft gaskets for shell-and-tube heat exchangers with a design pressure of 0.25 MPa to 4.0 MPa and a design temperature of -20 °C to 350 °C.
2012GB/T 29463.3-2012 Gaskets used in tube-shell heat exchangers.Part 3:Nonmetallic gaskets
GB/T 29463.3-2012 Gaskets used in tube-shell heat exchangers.Part 3:Nonmetallic gaskets was changed to GB/T 29463-2023 Gaskets for shell and tube heat exchangers.