| Model | Pumping Speed (m³/h | L/s) | Ultimate Pressure (Pa | mbar) | Motor Power (kW) | Speed (RPM) | Noise dB(A) | Inlet / Outlet (mm) | Cooling Water (L/min) | Max Temp / Humid |
|---|---|---|---|---|---|---|---|---|
| ZDB2.2 | 126 m³/h (36 L/s) | 0.8 Pa (0.008 mbar) | 2.2 kW | 2900 / 3500 (50/60 Hz) | 72 | DN40 / DN40 | 5 - 10 | Ambient: 0 - 50 °C Max Humidity: 90% |
| ZDB3.7 | 180 m³/h (50 L/s) | 3.7 kW | 72 | DN50 / DN40 | ||||
| ZDB5.5 | 270 m³/h (75 L/s) | 5.5 kW | 73 | DN65 / DN50 | 10 - 15 | |||
| ZDB7.5 | 330 m³/h (92 L/s) | 7.5 kW | 75 | DN65 / DN50 | ||||
| ZDB11 | 450 m³/h (125 L/s) | 11 kW | 75 | DN80 / DN65 | ||||
| ZDB15 | 660 m³/h (183 L/s) | 15 kW | 75 | DN100 / DN65 | 15 - 20 | |||
| ZDB18.5Popular | 780 m³/h (217 L/s) | 18.5 kW | 78 | DN100 / DN80 | ||||
| ZDB22Popular | 960 m³/h (267 L/s) | 1.0 Pa (0.01 mbar) | 22 kW | 78 | DN100 / DN80 | |||
| ZDB30 | 1500 m³/h (417 L/s) | 30 kW | 85 | DN150 / DN100 | 30 - 40 | |||
| ZDB37 | 1860 m³/h (517 L/s) | 37 kW | 85 | DN150 / DN100 | ||||
| ZDB55 | 2880 m³/h (800 L/s) | 10.0 Pa (0.1 mbar) | 55 kW | 85 | DN200 / DN150 | 40 - 50 | ||
| ZDB75 | 4080 m³/h (1133 L/s) | 75 kW | 85 | DN200 / DN150 |
Integrates variable-pitch rotor geometry that reduces energy consumption by 16.6%–23.8% compared to traditional equal-pitch designs, significantly lowering operational noise and gas discharge temperatures.
Customizable internal surface treatments including PTFE, PFA, Hastelloy, Molybdenum, and Nano-Ceramics ensure exceptional adhesion and long-term chemical resistance against aggressive solvent vapors.
Features end-cover Nitrogen (N2) positive-pressure protection and multi-layer shaft seals that prevent particulate ingress and safeguard bearings from hazardous process vapors.
Precision-machined within 0.02 mm (20 microns) and double heat-treated for longevity, delivering smooth non-contact operation with deep ultimate vacuum down to 0.8 Pa – 1.0 Pa.
Handles large volumes of condensable organic solvents, moisture-laden streams, and corrosive off-gases from high-capacity batch reactors without oil breakdown.
Delivers continuous oil-free vacuum needed for chemical vapor deposition (CVD), wafer drying, and high-purity cleanroom gas evacuation.
Facilitates inline recovery and high-efficiency condensation of valuable chemicals without cross-contaminating seal liquids or producing liquid waste.
Maintains stable vacuum suction (780–960 m³/h) under continuous thermal loading in vacuum crystallizers, rotary evaporators, and industrial freeze-dryers.
The ZDB18.5 delivers a high pumping speed of 780 m³/h (217 L/s) powered by an 18.5 kW motor, while the ZDB22 provides 960 m³/h (267 L/s) with a 22 kW motor. ZDB18.5 achieves an ultimate pressure of 0.8 Pa, and ZDB22 reaches 1.0 Pa.
The German variable-pitch design compresses process gas progressively inside the screw thread, reducing power consumption by 16.6% to 23.8% compared to constant-pitch pumps. This lowers heat output and ensures smooth continuous operation at high loads.
Yes. Built for non-contact dry compression, they efficiently clear condensable water vapors and fine particulates. Internal components can be coated with PTFE, PFA, Hastelloy, Molybdenum, or Nano-Ceramics for high chemical resistance.
The ZDB18.5 features a DN100 inlet and DN80 outlet. The ZDB22 also features a DN100 inlet and DN80 outlet, providing low-flow-resistance connections for high-volume gas throughput.
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