Solving Oxygen Flow Rate Issue with One Cylinder

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Discussion Overview

The discussion revolves around the challenge of supplying oxygen from a single portable cylinder to two lines, each requiring a flow rate of 15 litres/min. Participants explore the feasibility of achieving this with existing equipment, specifically focusing on the limitations of the current regulator and flow meter setup.

Discussion Character

  • Technical explanation, Debate/contested

Main Points Raised

  • One participant expresses confusion about how to achieve two oxygen lines from a single 15 litres/min supply, indicating a need for clarification on flow rates.
  • Another participant points out that it is not possible to draw two 15 litres/min supplies from a single 15 litres/min output, suggesting the need for a diagram for better understanding.
  • A participant acknowledges the need for two separate 15 litres/min supplies and considers the necessity of changing the flow meter or adding another flow meter to meet the requirement.
  • A later reply concurs with the idea that changing the flow meter or using two flow meters seems to be the only viable solution.

Areas of Agreement / Disagreement

Participants generally agree that the current setup cannot provide two separate 15 litres/min outputs from a single supply. However, there is no consensus on the best solution to achieve the desired flow rates.

Contextual Notes

The discussion does not address specific technical details regarding the design or specifications of the regulator and flow meter, nor does it explore potential alternative solutions beyond changing the equipment.

tacticsnz
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I am trying to solve an oxygen flow rate issue that has me confused.

The goal is to have one portable oxygen cylinder (1500psi) provide 2 lines of oxygen at 15 litres/min.
The current oxygen cylinder is fitted with a regulator and flow meter that provides 0-15 litres/min.

I understand that if I were to simply attach a Y-connection I wouldn't get the full flow rate through each tube. However, cost if a factor and I am aiming to solve this without having to replace the regulator or flow meter.

Is there a way? (It is fine if both oxygen lines provide the same oxygen output, however both should equal up to 15 litres/min.)
 
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Welcome to PF.
You seem to be suggesting that you could get two lots of 15l/minute from a single 15l/minute supply. That is clearly not possible so what exactly do you mean? You could try drawing a diagram, perhaps.
 
Thanks sophiecentaur. You're right that I need two 15L supplies. What I have is the oxygen with a regulator and flow meter and need to somehow provide two lines.

It looks like the only possible way is to change the flow meter or have two flow meters. What do you think?
 
It looks like it to me, too!
 

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