Demonstrating a Variable-Speed Rotary Screw Compressor on Your Own Air Demand

A buyer's guide to planning a demonstration of a 15 kW variable-speed rotary screw compressor using the buyer's actual air demand, with practical checks for the RFQ and acceptance test.

Ask the supplier to demonstrate the variable-speed rotary screw compressor against your own air demand profile, not a fixed test point. Because the machine is variable-speed, the useful question is how it behaves across your load range: at what flow does it hold pressure, how often does it load and unload, and how stable is pressure when demand steps up or down? Bring your measured demand data, including peak and low-flow periods, and ask the supplier to map the demonstration to those points.

For the RFQ, request a demonstration plan stating the test conditions, how air delivery is measured, and which instruments are used. Catalog reference values for this equipment are 15 kW motor power, 2.04 m³/min air delivery at 8 bar, and 1.93 m³/min at 8.6 bar; treat these as reference values, not guarantees for a supplied model. Ask whether the demonstration will be at your site or the supplier's, and whether your actual air-consuming equipment can be connected.

For acceptance, agree on pass criteria in advance: pressure held within a stated band at defined flows, and stable operation at your lowest expected demand.

Before requesting a quote, confirm with the supplier which demonstration conditions and instruments will be used, how the reference air delivery figures relate to the offered model, and what acceptance criteria will be recorded.

Keywords
  • variable-speed rotary screw compressor
  • own air demand profile
  • 15 kW motor power
  • 2.04 m³/min air delivery at 8 bar
  • acceptance test