Have to keep purging SEFs as the account, order view, account maintenance links change to log out after a while and I have to keep purging the SEFs to get the correct links back.

Is there a way I can unsef the account management links to stop this happening as I have done with checkout and the user module?

Hello,
please, check in the JoomSEF URL Manager, what is/are the original URL(s) stored for the problematic links.

If there is multiple links under the same name, that might be the problem. Then it is needed to identify, where they are coming from. You can use "Track URLs source" in JoomSEF / Advanced configuration tab to do this.

It may be coming e.g. from VM template, that contans a bug. Of course there might be other sources of the problem also, but this is where I would start.