WALTER SK 250 KSP Screw Compressor power input 250 kW, air delivery 41 m³/min at 8 bar, direct drive, fixed speed, 7-year warranty
Code: SK-250-KSP
Product detailed description
WALTER SK 250 KSP screw compressor with fixed speed and DN 100 connection
The SK 250 KSP is a fixed-speed variant: with an inverter, the 250 kW input power is only available as the two-stage SF 250 DSP.
At 8 bar it delivers 41 m³/min, at 10 bar 40, and at 13 bar 32.6 m³/min. The housing, 3,900 × 2,170 × 2,260 mm, is shared with the largest model in the range, the SK 315 KSP.
Configuration of this machine
- Screw element coupled directly to the motor · fixed speed without inverter · three-stage oil separation
- Air delivery 41 m³/min at 8 bar, 40 at 10 bar and 32.6 at 13 bar
- Housing shared with SK 315 KSP, weight 4,700 kg
- DN 100 connection, noise level 79 dB(A)
- Power supply 400 V / 3 / 50 Hz, WALTER CONTROLLER control unit
Who it suits
For large operations with continuous and steady consumption, where there's nothing for an inverter to compensate for and a simple design is sufficient. For large fluctuations in demand, only the SF 250 DSP with inverter should be considered.
When to choose a different model
Two-stage with inverter
With an inverter and two-stage compression, at this input power there is the SF 250 DSP: at 8 bar it delivers up to 51.4 m³/min, i.e. 25% more. It weighs 6,450 kg.
The largest model in the series
One size up, in the same housing and with a DN 125 connection, is SK 315 KSP. It weighs 4,900 kg and the noise level is 80 dB(A).
What the parameters imply — calculated values
The values are calculated from the maximum air delivery at 8 bar and serve for comparing models with each other, not as a guaranteed value.
Frequently asked questions
- Is there an SK 250 KSP with an inverter?
- No. In the SF KSP line, the model with 250 kW input power does not have one; at this power rating, only the two-stage SF 250 DSP comes with an inverter.
- How big is the SK 250 KSP?
- Housing 3,900 × 2,170 × 2,260 mm and weight 4,700 kg. The SK 315 KSP has the same housing, and it is 200 kg heavier.
The machine is covered by a 7-year warranty on the entire machine. Warranty conditions, maintenance, and a comparison of all 17 models can be found in the category WALTER SK KSP screw compressors: direct drive without losses.
Ventilek advises
For machines above 200 kW, it is worth measuring how consumption varies during a shift: fluctuating consumption points more towards an inverter, constant consumption towards fixed speed.
Additional parameters
| Category: | Air compressors |
|---|---|
| Warranty: | 7 let |
| Compressor type: | Screw compressor |
| Pressure: | 8 bar, 10 bars, 13 bar |
| Air delivery: | 41 000 l/min |
| Pressure vessel volume: | It isn't |
| Connecting: | DN100 |
| Motor power: | 250 kW |
| Mains voltage: | 400/50 V/Hz |
| Lubrication: | Oleic |
| Noise: | 79 dB(A) |
| Weight: | 4 700 kg |
| Engine: | Electric |
| Drive: | Direct |
| Air dryer: | No |
| Retrieved from: | Professional |
| Development: | Stationary |
| Inverter: | No |
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