WALTER SF 22 screw compressor

The WALTER SF 22 screw compressor was manufactured in 2013 by the Polish company WALTER Kompressortechnik. The freestanding screw compressor has a direct drive and a built-in inverter, so the speed is adjusted to the current air consumption readout. The 22 kW compressor has a capacity of 0.7 to 3.2 m3/min with an operating pressure of 10 bar. The unit is also equipped with air cooling and an additional heat exchanger for liquid cooling in a soundproof enclosure. WALTER SF 22 compressor weights 645 kg.

Technical data of WALTER SF 22 screw compressor

• air cooling
• additional heat exchanger for liquid cooling in sound-absorbing casing
• built-in inverter
• driven by electric motor with belt transmission
• working pressure: 10 bar
• capacity at working pressure 0.7 – 3.2 m3/min (flow rate acc. to ISO 1217: 1996)
• installed power: 22 kW
• permissible ambient temperature: +3/+35°C
• oil content in the exhaust air: up to 3 mg/m3
• nominal speed: 900 – 2940 min-1
• degree of protection: IP 55
• radiator heat: 15 000 Kcal/h
• fan capacity: 5 500 m3/h
• air connection: 1 ¼”
• sound level: 69 dB(A) (noise level according to PNEUROP/ CAGI)
• voltage: 400 VAC, 3 ph, 50 Hz
• rated power: 22 kW
• dimensions (L x W x H): 1230 x 1070 x 1490 mm
• weight of WALTER SF 22: 645 kg