Leybold D4B Trivac B Rotary Vane Vacuum Pump
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Leybold D4B Trivac B Rotary Vane Vacuum Pump

This Leybold D4B Trivac B Rotary Vane Vacuum Pump is used and in excellent condition.

• Nominal Pumping Speed: 4.8 cubic meters / hour
• Pumping Speed: 4.2 cubic meters / hour
• Water Vapor Tolerance: 40 mbar

Motor Configuration:
• Frequency: 50 / 60 Hz
• Horsepower: 1/4 (50 Hz), 1/3 (60 Hz)
• RPM: 1425 (50 Hz), 1725 (60 Hz)
• Voltage: 100 / 200-220 (50 Hz), 115 / 200-230 (60 Hz)
• FLA: 8.8 / 3.6-4.4 (50 Hz), 7 / 3.2-3.5 (60 Hz)

Part Number: 898902

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Stock # 73307-1
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Leybold Trivac B Series Rotary Vane Vacuum Pump

  • Functional for Gases ,Vapors, and Evacuate Vessels
  • Ideal for Vacuum Systems in a Fine Vacuum Range
  • Drive Motor Directly Flanged to the Pump at the Couple Housing
  • Pin-Fitted Parts Allow Easy Disassembly and Reassembly


Trivac-B pumps are oil-sealed rotary vane pumps. The Trivac S4B and S8B are single-stage pumps, and the Trivac D4B and D8B are dual-stage pumps. Trivac-B pumps can pump gases and vapors and evacuate vessels or vacuum systems in the fine vacuum range. Those of standard design are not suitable for pumping greater than atmospheric concentrations of oxygen, hazardous gases, or extremely aggressive or corrosive media. The drive motor of the Trivac-B is directly flanged to the pump at the coupling housing. The pump and motor shafts are directly connected by a flexible housing. The pump and motor shafts are directly connected by a flexible coupling. The bearing points of the pump module are force lubricated sliding bearings. All controls as well as the iol-level glass and nameplate are arranged on the front. All connections are to be found at the sides of the pump. The oil-level glass is provided with prisms for better observation of the oil level. The pump module consists of assembly parts which are pin-fitted so as to allow easy disassembly and reassembly. The pump module can be easily removed without special tools.

Product Family: Trivac, Trivac-B, Trivac B, S4B, S8B, D4B, D8B

Important Notice: Please note that any additional items included with this equipment such as accessories, manuals, cables, calibration data, software, etc. are specifically listed in the above stock item description and/or displayed in the photos of the equipment. Please contact one of our Customer Support Specialists if you have any questions about what is included with this equipment or if you require any additional information.

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Leybold Trivac B Series Rotary Vane Vacuum PumpLeybold Trivac B Series Rotary Vane Vacuum PumpLeybold Trivac B Series Rotary Vane Vacuum Pump
Leybold Trivac B Series Rotary Vane Vacuum PumpLeybold Trivac B Series Rotary Vane Vacuum Pump

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Manuals, Datasheets, Drivers, Links

Leybold Trivac B Datasheet (pdf) 
Leybold Trivac B Manual (pdf) 
Link to Leybold Website 

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