Flow Rates

You wrote,

So I switched (low pressure side) the relief rupture valve with the low psi outlet from the factory. Now I have a huge volume of gas moving and freezing.

What do you mean?? 2 stage valves are meant to operate one way only, how can you put factory low pressure into it?? do you mean you have made the 1st stage non functional and are trying to use the second stage only??

Sorry about any confusion. On the second stage of a 2 stage regulator, the factory low pressure outlet was switched to the factory pressure relief outlet. First stage remained functional with direct pressure from 2600psi Ni cyl. It's been my idea all along that a pressure relief/rupture disc orifice is not engineered to deliver a calculated low pressure flow. I proved this with an identical regulator under the same parameters and the system worked as expected.

With your comment I see how ridiculous moving the rupture disc was. I'll put things back the way they came from the factory and tell my engineer he can't do that.

Thanks for your time.

sc

Hi Crumpsdc,

I need to understand the problem.

Get some assembly pictures and send me (or to e-mail vitorino.alex@gmail.com ).

I want to help you

Thanks for your offer to help. I can't seem to submit a photo. Problems with finding the photo I want to send.

Regardless, what we did with the regulator was the wrong thing to do. The're designed and assembled at the factory for a reason and my engineer was wrong to reconfigure the outlets and expect the regulator to work properly.

Regards and thanks.

sc