I've just bought a Sievert Pro 86 torch kit and it came supplied with an unexpected bonus item in the form of a "0.5-4 bar" regulator as pictured.

There is a dial that goes from 1-10, which I assume marks 0.4 bar increments. The only puzzle is that the adjustment knob cannot be turned beyond the 5 mark or thereabouts.

Is this because the manufacturer has limited the output to 2 bar on this regulator, do you think, and has done so because the standard nozzle/burner* that comes with the kit is designed to be run at 2 bar? Or is there a fault with the item?

I have two other 0-4 bar propane regulators and neither is restricted in this way.

*Much bigger Sievert nozzles/burners (that need 4 bar) can be fitted to this torch if required.

Edited By Bill Phinn on 18/09/2019 12:21:34

Thanks for the link.

I take it, then, from Iain's reference in that thread to turning his regulator up to 7 that I should be able to turn my dial at least that far as well, and because I can't I have a faulty regulator.

Anyone that knows better, your insight would be welcome.

Many thanks to everyone for the further replies.

Taking my cue from Brian (eta: thanks, Bill – only just seen your post), I put the regulator in a vice so that I could get better hand leverage on the dial (I've got limited use in one of my hands). I'm pleased to say that it did turn further than 5 and after a few vigorous back and to turns it now opens all the way to 10, albeit with some difficulty (for me at any rate).

Brian and Meunier's talk of fires is prophetic; I was at my parents' house this evening and my wife was cooking on their twenty + year-old electric cooker when the cable connection at the rear caught fire shortly after the cooker had terminated with a loud bang. The flames were licking up the back of the cooker in quite a lively fashion by the time I opened up with the powder fire extinguisher.

Has anyone seen the mess it leaves when you've used a powder extinguisher in your kitchen? We were still cleaning up three hours later. I suppose, though, it wasn't as big a mess as it might have been if I'd not insisted on my parents keeping a fire extinguisher (two, in fact) in their house for just these sorts of eventualities.

Edited By Bill Phinn on 18/09/2019 23:10:57