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The gas regulator on our Argon cylinder for our ICP-OES system regularly produces a high pitched noise due to resonance from the flow of the gas.  Is there a certain type of regulator or setup that eliminates this noise?

Question asked by tanyacervantes on Nov 12, 2019
Latest reply on Dec 4, 2019 by tanyacervantes

We can sometimes reduce the noise by adjusting the main cylinder valve and the exiting needle valve, but it would be great to eliminate the noise.   Should there be a needle valve after the regulator?