Is there a graphite seal on the 315 lamp? There is an o ring in mine and I can't see a grapite tube in the exploded digramme. Any help on this matter will be appreciated. Jim
It may be, but so long as it works and the link below shows what is available today from the Fettlebox. https://fettlebox.co.uk/bialaddin-vapalux.html
Thanks, Jeff. I bought the other seals from them (and I am totally satisfied). From their lists I see that the control cock is in fact an o ring, so everything is right. Jim.