Oxy/propane heating gas saver without popping?

[vbottles]

Hi does anyone know how to set up a gas saver so it doesn't pop? I am getting sick of the gunshot popping every time I put the torch down!
I have an oxy/act gas saver attached to a saffier torch with a bent neck and various heating heads. I am using it to heat 2mm+ mild sheet for deep forming. Occasionally I can set it so there is no popping but never really sussed what works.
I am considering a Harris 50 10 automatic torch (£240) but can't find out if I can use my heating neck and burners.
Any suggestions on how to heat sheet Max 2ftx 3ft with out going through lots of gas?
Andrew

 

[backpurge]

You could look at compressed air and acetylene but you would need a new torch

 

[vbottles]

I'm avoiding using acetylene due to bottle rental. Act still pops when I've seen it used as well. I may have to make a large venturi burner for the big heats. But was hoping the his mind would have some suggestions.
Andrew

 

[captain-destructo]

what about?

http://www.mig-welding.co.uk/forum/threads/need-to-have-a-clearout.49467/

 

[dan.taylor.1]

My oxy propane only ever pops if you turn the oxy off first, or if there is a little flame still after the propane is off.

Normal sapphire torch with propane nozzle etc.

Dan

 

[vbottles]

Here is a link to the type of gas saver that I use. http://carlislemachine.com/industrial/images/large_gassaver.jpg
As the torch shuts off automatically I cant shut off the propane first as both shut off at the same time.
The air propane burners could do the job but will be slow. I've used them for silversmithing and it takes time. I would worry about th time it takes to heat 3mm steel. I am basically making large bowls from sheet approx. 18"x 18". These are worked hot over ball stakes or raising stakes to get the depth and to push the metal to where I want it.
Andrew