Hi

I have noted when designing a pressure vessel in PD5500 that the an external corrosion allowance on a shell with nozzles is applied to the nozzles thickness as well, even if the nozzle editor ca is set to zero. Is there a way to turn this off? When designing vessels for the refrigeration industry normally BS vessels do not have a corrosion allowance on the nozzle. I can get around this by do it manually, but it is easier if the software can accommodate this.