Pressure relief valve activating pressure at 50 Hz [bar]:
Maximum working over‐
pressure [bar]
SK 22 SK 25 —
8.0 10 10 —
11.0 13 13 —
15.0 16* 16* —*
* China: 15.9
Tab. 10 Pressure relief valve activating pressure (50Hz)
Pressure relief valve activating pressure at 60 Hz [bar]:
Maximum working over‐
pressure [bar]
SK 22 SK 25 —
8.5 10 10 —
11.0 13 13 —
15.0 16 16 —
Tab. 11 Pressure relief valve activating pressure (60Hz)
2.8 Flow rate (constant delivery volume relative to intake conditions)
Flow rate [m
3
/min] at 50 Hz mains frequency:
Max. working pres‐
sure [bar]
SK 22 SK 25 —
8.0 2.00 2.50 —
11.0 1.67 2.10 —
15.0 1.30 1.70 —
Flow rate as per ISO 1217:2009. Annex C
Tab. 12 Flow rate (50Hz)
Flow rate [m
3
/min] at 60 Hz mains frequency:
Max. working pres‐
sure [bar]
SK 22 SK 25 —
8.5 2.00 2.50 —
11.0 1.67 2.17 —
15.0 1.30 1.77 —
Flow rate as per ISO 1217:2009. Annex C
Tab. 13 Flow rate (60 Hz)
2 Technical Specifications
2.8 Flow rate (constant delivery volume relative to intake conditions)
901848 21 E
Operating Manual Rotary screw compressor
SK
7
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