Technical DataDisplacement　 50Hz178 m3h-1 / 105 ft3min-1 60Hz214 m3h-1 / 126 ft3min-1Speed (Pneurop)　 50Hz160 m3h-1 / 94 ft3min-1 60Hz196 m3h-1 / 115 ft3min-1Number of stages2Ultimate vacuum (total pressure)　 Without gas ballast1.0 x 10-3 mbar / 7.7 x 10-4 Torr With gas ballast7.0 x 10-3 mbar / 5.4 x 10-3 TorrInlet connectionISO63 blank flange with sealOutlet connectionISO40 flange centre tappedMaximum outlet pressure0.5 bar gaugeMaximum inlet pressure for water vapor20 mbar / 15 TorrMaximum water vapor pumping rate0.3 kg h-1 / 0.7 lb h-1Weight200 kg / 441 lbMotor protection ratingIP44Motor power　 50Hz5.5 kW / 7.5 hp 60Hz6.5 kW / 8.5 hpStandard oil capacity　 maximum25 liter / 26 qt minimum16 liter / 17 qtPFPE oil capacity　 Maximum18 liter / 19 qt Minimum6.5 liter / 6.9 qtRecommended oilUltragrade 70Noise level75 dB (A)