Leybold TRIVAC D16B Two-Stage Rotary Vane Vacuum Pump

The Leybold TRIVAC D16B Rotary Vane Vacuum Pump is a two-stage, oil-sealed vacuum pump designed for laboratory, industrial, analytical, and research applications that require reliable vacuum generation. Manufactured by Leybold, the TRIVAC B series is designed to support a wide range of vacuum processes through efficient gas compression, oil-assisted sealing, and a robust mechanical pumping arrangement.

The TRIVAC D16B is designed for applications requiring a combination of practical pumping capacity and low ultimate pressure. According to the manufacturer's technical documentation, the model has a nominal pumping speed of 18.9 m³/h at 50 Hz and 22.7 m³/h at 60 Hz. Its specified pumping speed is 16.5 m³/h at 50 Hz and 19.8 m³/h at 60 Hz. These characteristics make it suitable for use as a primary vacuum pump or as a backing pump in compatible vacuum systems. Actual performance depends on the system design, operating frequency, maintenance condition, and process requirements. 【turn524982search22】【turn524982search24】

The pump uses a two-stage rotary-vane mechanism. During operation, a rotating eccentric rotor and sliding vanes draw gas through the inlet, compress it inside the pumping chambers, and discharge it through the exhaust. Vacuum oil provides lubrication and helps seal the internal clearances, supporting efficient pumping and reducing internal leakage. The two-stage arrangement allows the pump to achieve a lower ultimate pressure than many single-stage rotary-vane pumps.

The Leybold TRIVAC D16B is suitable for integration into compatible vacuum chambers, laboratory apparatus, analytical instruments, and industrial vacuum installations. Depending on the complete system configuration, it may be used for vacuum drying, degassing, evacuation of enclosed chambers, vacuum processing, and research experiments. It can also serve as a backing pump for suitable high-vacuum systems where the required inlet pressure and gas load fall within the pump's operating limits.

An important feature of this model is its gas-ballast capability. Gas ballast allows a controlled amount of gas to enter the pumping mechanism to help handle condensable vapours and reduce their condensation inside the pump. The manufacturer's published specifications list an ultimate total pressure below 2 × 10⁻³ mbar with the gas ballast closed and below 5 × 10⁻³ mbar with it open, under specified test conditions. These values are model specifications and should not be treated as verified results for an individual pre-owned unit. 【turn524982search22】【turn524982search23】

The supplied photograph shows a Leybold TRIVAC D16B unit with a finned housing, electric motor, oil-level inspection window, and identification plate. The pump's construction supports practical access for inspection and routine maintenance. The manufacturer specifies DN 25 ISO-KF connections for the standard model, although the fittings on the actual unit should be checked before installation. 【turn524982search22】

For laboratories, universities, research institutions, and manufacturing facilities, a pre-owned TRIVAC D16B can be a useful option when its operating condition and electrical configuration meet the requirements of the intended application. Before commissioning, the pump should be inspected for oil condition, leaks, abnormal noise, motor operation, and the condition of the inlet and exhaust connections. A vacuum performance test is recommended to establish whether the individual unit reaches the required pressure.

The pump's motor voltage, phase, frequency, and rated power should also be confirmed from its nameplate. Different motor configurations exist, so the electrical supply should not be assumed from the model name alone. With appropriate maintenance and correct operation, the Leybold TRIVAC D16B can provide a practical vacuum source for compatible laboratory and industrial systems.

2.2. Applications of the Product

• Laboratory research: Generating vacuum for scientific experiments and laboratory apparatus.

• Vacuum drying: Supporting drying processes conducted under reduced pressure.

• Degassing: Removing entrained gases from suitable liquids, materials, and process systems.

• Analytical instruments: Supplying vacuum to compatible analytical and scientific equipment.

• Vacuum chambers: Evacuating chambers and enclosed systems.

• Industrial processing: Providing vacuum for compatible production and manufacturing processes.

• High-vacuum systems: Serving as a backing pump for suitable high-vacuum equipment.

• Research and development: Supporting vacuum-dependent experimental procedures.

• Vacuum testing: Supplying vacuum for compatible testing and evaluation systems.

2.3. Product Features

• Genuine Leybold TRIVAC B series identification.

• Two-stage rotary-vane pumping technology.

• Oil-sealed pumping mechanism.

• Nominal pumping speed of 18.9 m³/h at 50 Hz.

• Nominal pumping speed of 22.7 m³/h at 60 Hz.

• Low ultimate pressure under specified operating conditions.

• Gas-ballast function for handling condensable vapours.

• Oil-level inspection window.

• Standard DN 25 ISO-KF inlet and outlet connections on the documented model.

• Designed for laboratory, analytical, industrial, and research applications.

• Suitable for use as a primary or backing pump in compatible vacuum systems.

2.4. Technical Specifications

Specifications are based on published Leybold TRIVAC D16B technical data. Electrical and mechanical details can vary by motor version. Model specifications do not establish the tested performance of the photographed unit. 【turn524982search22】【turn524982search23】【turn524982search3】

2.5. Product Condition

Suggested condition: Used / Pre-owned

The image shows a complete pump assembly with visible signs of previous use. Select Refurbished only if the unit has undergone the relevant inspection, servicing, and functional testing.

Suggested listing note:

“Pre-owned Leybold TRIVAC D16B rotary vane vacuum pump. Please confirm the operating condition, vacuum performance, motor specifications, and included accessories before purchase.”