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How to specify a gas compressor duty point
Gas, flow, suction pressure and discharge pressure together define the machine; any one of them alone does not.
A flow figure on its own is meaningless without the pressures it is measured at. The same machine delivers very different throughput recovering from atmospheric pressure than it does pulling a switchgear enclosure down towards vacuum, which is the part of the job that takes the longest.
For recovery work the residual suction pressure is usually the controlling number. Getting from full charge to most of the way empty is quick; getting from there to the required residual is where the time goes, and it is what determines whether the job fits the outage window.
State the gas as well. SF6, helium, hydrogen and noble gases all run on the same platform but the sealing and materials are specified for the gas named, and changing it after the machine is built is not a configuration change.
Specifications
| Specify | Gas, flow, suction pressure, discharge pressure |
|---|---|
| Controlling number | Required residual suction pressure |
| Standard range | Roughly 6 to 80 Nm³/h, 2.2 to 22 kW |
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Send us your duty point
Tell us the gas, the flow you need and the suction and discharge pressures. If a standard model fits we will say so; if it does not, the compressor and control design are tailored to the duty.