7E-A / 7E-B / 7E-DTechnical data:Input power: 90VA Power supply: DC 12V; 44VAMax negative pressure value: ≥0.075MPaPumping rate: ≥17L/min(7E-A);≥15L/min(7E-B/7E-D)Operation noise: ≤ 65dB (A)Reservoir volume: 1000mL, 1piece