3)7*67$1'$5' 86$
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2,1 bar switch on machine.
1,9 bar switch off machine.
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0,9 bar switch on machine.
1,2 bar switch off machine.
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2,0 bar compressor switch on (pressure difference/1,0 bar)
3,0 bar compressor switch off
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1,9 bar at maximum flow
(2) needle valve completely opened