Help Nitrogen Regulator (Need help)

[A3re733]

I have this nitrogen regulator
How do I make sure the flow is roughly 15Lpm using this regulator? Is there a math formula or some way I can know? Because as you can see in the picture it doesn't show Lpm.

Actually, the real question is, how can I use this regulator for the Nitrogen Exit bag method?

Thank you for your time. I really appreciate anyone that wants to help and I am grateful to be a part of this community where everyone treats each other well, unlike real life.

Edit1: I think I might need to use a flowmeter with it right? Maybe something like this?

Would that work?

 

[Motherfly]

Just make sure you:
1. Buy a FLOWMETER
2. That said flowmeter allow for either 15L/m or 31cf/m of gas flow.

It's as simple as that.

Just go in an industrial gas store and the clerk is gonna help you.

 

[A3re733]

Just make sure you:
1. Buy a FLOWMETER
2. That said flowmeter allow for either 15L/m or 31cf/m of gas flow.

It's as simple as that.

Just go in an industrial gas store and the clerk is gonna help you.

Not helpful at all.
If I could "just make sure you get it dude" then I wouldn't make this thread. Don't comment if you have nothing of value to add.

In some cases, like me now, people can't get a regulator+flowmeter that fits the nitrogen tank and is in Lpm.

I asked some very clear and simple questions and I am waiting for someone who knows more about welding/has experience with this.

My plan is to buy the flowmeter(2nd picture) and use it, eventhough it isn't attached to the regulator like what you're talking about.

People do it, some welders do it like this. I'm just unsure about how to do it though, so I would appreciate some advice from people who know what they're talking about.

 

[NextBusLeaving]

I have this nitrogen regulator View attachment 24860
How do I make sure the flow is roughly 15Lpm using this regulator? Is there a math formula or some way I can know? Because as you can see in the picture it doesn't show Lpm.

Actually, the real question is, how can I use this regulator for the Nitrogen Exit bag method?

Thank you for your time. I really appreciate anyone that wants to help and I am grateful to be a part of this community where everyone treats each other well, unlike real life.

Edit1: I think I might need to use a flowmeter with it right? Maybe something like this? View attachment 24863

Would that work?

So there is no direct mathy way to go from PSI to LPM. PSI is a measurement of pressure, whereas LPM is a measurement of flow, which can differ drastically based on the size/type of regulator being used. Is the 15 psi going through a tube or a diaphragm or an orifice of some size? Each one could produce a drastically different flow rate at 15 psi. I wish I had a better answer, but the previous responders comment about the flow meter is really the only way short of contacting the regulstor mfg who may know.
There really is no application for flow rates in welding that I am aware of, which is why most regulators are in PSI. Plasma cutting needs a certain CFM but you are using oxygen there. MIG welding and torch cutting the regs are all set up with one giving tank pressure (usually high psi) and one giving supply press (the gauge on right in your setup)

LPM is more a medical/diving usage. Now, an oxygen reg that reads in LPM might be math-convertible to Nitrogen or at least you could suss out a pretty darn close approx.