subarc boy
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whats the difference in a single stage and a 2 stage regulator ?
Very basically a single stage if set and left to its own thing the output pressure will drop as the cylinder contents pressure drops.
Whereas a Two-stage will stay at a set output pressure while the cylinder content pressure drops.
Very good when heavy cutting for prolonged times on the oxygen side, once set it will stay set till the end.
Sounds logical never really given it a thought, on anything critical or heavy use I normally try and use a two-stage.Not quite right there Chris. A single stage Reg left unadjusted will give a rising output pressure characteristic until the bottle reaches almost empty at which point it will rapidly develop a drooping outlet pressure characteristic.
Hard to get your head around I’m sure but the cylinder pressure on one side of the diaphragm and a spring operated by the pressure adjusting screw on the other. As cylinder pressure drops altering the balance, it has a effect like increasing the PA screw/spring pressure allowing more gas to flow without the operator even touching the regulator.
This rise in pressure can be very significant on poor quality regulators and is the main reason people opt for multi-stage regulators as left unadjusted they can reduce the output pressure rise over the life of a gas cylinder to under 3%.
Sounds logical never really given it a thought, on anything critical or heavy use I normally try and use a two-stage.
Just wish they made a second stage add on for the albee cylinders when gas welding, the built-in reg just allows an approximation of your best guess on the outlet pressure.
I Don't think it would work as the outlet pressure would be far to low to register on the first stage of the second regulator. Even if you could find the fittings to do the modification.Would coupling the quick attach output on the cylinder to the input of another regulator, achieve a similar result?
Would coupling the quick attach output on the cylinder to the input of another regulator, achieve a similar result?
For acetylene?You can buy pressure regulators in all sorts of ranges, so if you found one with a much lower range that the normal bottle type you could simply plumb that in line for very accurate secondary pressure reduction.
For acetylene?