Well, after I was dome with changing the NRV on some lanterns that unthreaded nicely, I went on with my Primus 535. No luck there, had to drill it out. It all worked fine in the end. So, today, Radius 119, old old lantern. The NRV tool slipped, rounded the head. Not good. Well de-solder pumptube, how hard can it be? Well, easy it turned out. But again the NRV had in this case also to be drilled out in the end. But after resolder, watertest and all, it worked fine.
Well done on that fix ... I notice that in the message you show a nice photo...an original Sievert blow torch?.. I have a very similar one here in the uk , type 223 APH I beleive .... as they were once made in Sweden are there any firms or places/ dealers that stock spare parts in Sweden maybe ?... any information at all would be so good I probably only need a couple of parts... it is very solidly built... a working diagram would also be useful... many thanks