Tube Bead
I want to mix two gases through flow regulators without possible cross-contamination of storage tanks?
I have tanks at different pressures of CO2 and methane. I want to mix them through flow regulators (not pressure regulators) in various proportions. The flow regulators are simple "calibrated bead in tube" type (called "Flow Raters" manufactured by Dwyer). If flow from both tanks is maintained at some level is it possible for gas from the higher-pressure container to enter (backwards through the other 'flow rater') the lower-pressure container? Pressure in both cylinders is similar, but not identical. I would establish flow from the low pressure cylinder first, then the high-pressure cylinder, and shut off the high pressure cylinder first. Again, I can regulate flow rate (in scfh) well enough for my purposes, but have no way of regulating pressure.
one way flow valves
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