Reduce positive pressure gas
to atmospheric pressure.
Use a needle valve at low
pressures (<10 barg) to control
flow and pressure drop.
Reduce positive pressure gas to
atmospheric pressure.
Use a stainless steel, low swept
volume pressure regulator at higher
pressures (>10 barg).
Filter all particulate matter.
Use a coalescing filter (with
drain) for liquid condensate
samples. Hygroscopic
particulates and liquid
condensate will slow the
achievement of equilibrium
and delay the final result.
Hygroscopic liquid (such as
glycol) may accentuate the
buffering effect (as above)
and render the sensor too
slow to use.
Install the filter as close to
the sample point as practical.
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