When you need a replacement weldment and/or shell weldment for your Agilent 5890/6850/6890 GC, we have the parts. However, selecting the correct catalog numbers can be a little confusing for many of us. As a result, I decided to try and simplify the selection process below. I hope you find it helpful.
5890 Weldment catalog numbers are 20265 for stainless and 20267 for Siltek –Treated.
5890 Shell Weldment catalog numbers are 20266 for stainless and 20268 for Siltek-Treated.
6850 & 6890 Weldment: If your GC has one of the split vent traps shown below (Restek kit 23031, commonly called large canister filter),
and your instrument does have electronic pressure control (EPC), then the associated Restek weldment replacements are 22686 for stainless and 22670 for Siltek-Treated.
If your 6850 and/or 6890 GC has a split vent trap like shown below (Restek 22820, sometimes called a split vent pencil trap or chemical trap),
.and your 6850 and/or 6890 does not have EPC, then the weldment catalog numbers are 20265 for stainless and 20267 for Siltek-Treated. Please note that these are the same weldments used on the 5890 injection ports.
If your 6850 and/or 6890 GC has a split vent trap like shown above (Restek 22820), but it does have EPC, then the Restek weldment replacements are 22674 for stainless and 22672 for Siltek-Treated.
6850 & 6890 Shell Weldment catalog numbers are 22673 for stainless and 22671 for Siltek-Treated.