| Compressor Type | Impeller Diameter (mm) | Maximum Flow Rate (m3/h) | Pressure Limit (barG) | Design Rotational Speed (RPM) |
| Lower Limit | Upper Limit |
| SP30X | Up to 300 | 10600 | Up to 45 | 11111 | 21000 |
| SP40X | Up to 400 | 18900 | Up to 45 | 8333 | 19000 |
| SP50X | Up to 500 | 29600 | Up to 45 | 6666 | 15500 |
| SP60X | Up to 600 | 42600 | Up to 45 | 5555 | 12000 |
| SP70X | Up to 700 | 58000 | Up to 45 | 4760 | 10000 |
| SP80X | Up to 800 | 75800 | Up to 30 | 4167 | 8570 |
| SP90X | Up to 900 | 95900 | Up to 30 | 3700 | 7500 |
| SP100X | Up to 1000 | 118400 | Up to 20 | 3333 | 6666 |
| SP110X | Up to 1100 | 143000 | Up to 20 | 3030 | 6000 |
| SP120X | Up to 1200 | 170000 | Up to 20 | 2780 | 5454 |
| SP130X | Up to 1300 | 200000 | Up to 20 | 2565 | 5000 |
| SP140X | Up to 1400 | 231500 | Up to 20 | 2380 | 4615 |
| SP150X | Up to 1500 | 265800 | Up to 20 | 2200 | 4285 |
The SP Series is QualRotate's horizontally split centrifugal compressor range, designed for medium- to low-pressure, high-flow applications. The model table provides a general reference for the available frame sizes and flow ranges, while the final configuration is selected according to the specific operating conditions.
For centrifugal compressor selection, please provide the gas composition, flow rate, suction and discharge pressures, and operating temperatures. Information on expected operating variations and part-load requirements will also help us determine a configuration suited to your actual operating conditions.
Site conditions are also considered during selection. Available space, maintenance access, equipment footprint and layout can all influence the final SP configuration.
*When reviewing a centrifugal compressor specification, compare the flow, pressure and speed entries together. The SP table lists maximum flow rate, pressure limit, impeller diameter and design rotational speed by model. These entries support an initial comparison; your enquiry should also identify the operating conditions associated with the required duty.
Use the following points when discussing the table with QualRotate:
Flow: State the required value, unit and reference conditions.
Pressure: Provide both inlet and required outlet pressures, including whether the values are gauge or absolute.
Speed: Identify any driver or operating-speed constraints.
Operating range: Describe expected changes in flow, pressure or gas composition.
Ask the engineering team to confirm how the published model data applies to your stated conditions before finalizing the selection.
For a horizontally split centrifugal compressor enquiry, share the application, gas composition, flow, pressures, temperatures and operating range, including duty cycle and part-load needs. Include site layout, piping interfaces and maintenance access constraints, and specify whether the project involves new equipment, replacement or modification.
For existing units, provide operating data, available performance curves, constraints and intended changes. QualRotate's compressor retrofit service evaluates operating conditions, performance curves and compatibility to assess the proposed scope.
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