Welch P 4 Z with Labovac 14 Rotary Vane Vacuum Pump

The Welch P 4 Z with Labovac 14 Rotary Vane Vacuum Pump is a vacuum generation system manufactured by Gardner Denver Thomas GmbH under the Welch brand. Designed for laboratory, research, analytical, and industrial applications, this equipment is intended to create reduced-pressure environments for processes that require reliable vacuum performance. According to the manufacturer's nameplate visible in the supplied image, the pump has a nominal pumping speed of 4.6 m³/h at 50 Hz and 5.5 m³/h at 60 Hz, with a specified ultimate vacuum of \(8 \times 10^{-3}\) mbar.

The pump uses rotary-vane technology, a widely used mechanical pumping principle for generating vacuum. In this mechanism, a rotating rotor with sliding vanes creates changing chamber volumes that draw gas through the inlet, compress it, and discharge it through the exhaust. This process enables the pump to reduce the pressure within connected equipment, vacuum chambers, and compatible laboratory systems.

The P 4 Z model is identified on the nameplate as a Drehschieberpumpe, the German term for a rotary-vane pump. The supplied identification also specifies Labovac 14, which should be retained in the product name to help buyers identify the complete configuration. The nameplate lists an electrical supply of 100/115/230 V at 50/60 Hz. Because multiple voltage configurations are indicated, buyers should confirm the actual motor wiring and available supply requirements before installation.

With a pumping speed of 4.6 m³/h at 50 Hz and 5.5 m³/h at 60 Hz, this pump is intended for applications requiring a moderate vacuum pumping capacity. Its stated ultimate vacuum of \(8 \times 10^{-3}\) mbar provides an important reference for evaluating its suitability for compatible vacuum processes. Actual performance will depend on the condition of the pump, maintenance history, connected system volume, gas load, leakage, and operating conditions. The stated ultimate pressure is a manufacturer nameplate specification and should not be considered a verified test result for an individual used unit.

The Welch P 4 Z with Labovac 14 may be suitable for use in research laboratories, university facilities, industrial testing environments, and other locations requiring a mechanical vacuum source. Potential applications include vacuum drying, degassing, evacuation of compatible chambers, laboratory experiments, and vacuum support for suitable scientific equipment. The precise suitability of the pump depends on the process gases, required pressure range, operating cycle, and compatibility of the connected apparatus.

Rotary-vane pumps require appropriate maintenance to preserve their operating performance. Depending on the specific construction and manufacturer's recommendations, routine service may include inspection of the pumping mechanism, seals, motor, inlet and exhaust connections, and operating fluid where applicable. Users should consult the correct operating manual before performing maintenance or selecting replacement parts. Process vapours and chemically aggressive gases should be evaluated carefully to ensure compatibility with the pump's materials and design.

The compact mechanical arrangement of a rotary-vane pump can make it practical for integration into laboratory and industrial vacuum installations. Before connecting the equipment, the user should check the electrical supply, earthing, ventilation, mounting stability, and vacuum connection requirements. Suitable filtration or vapour management accessories may also be required for particular applications.

For laboratories and businesses seeking pre-owned vacuum equipment, the Welch P 4 Z with Labovac 14 can be considered when the pump's specifications match the intended process and its operational condition has been assessed. Buyers should confirm the motor's actual voltage configuration, inspect the equipment for wear or damage, and perform a vacuum performance test before routine use. Accessories, tubing, fittings, power cables, and other components should be listed only if they are included with the sale.

Overall, the Welch P 4 Z with Labovac 14 is a rotary-vane vacuum pump identified by a clearly labelled manufacturer nameplate. Its documented pumping speed, ultimate vacuum specification, and electrical ratings provide a useful starting point for selecting compatible laboratory and industrial vacuum equipment. Proper installation, suitable operating conditions, and regular maintenance are important for achieving reliable service.

2.2. Applications of the Product

• Laboratory research: Vacuum generation for compatible experimental apparatus and research systems.

• Vacuum drying: Supporting drying processes under reduced pressure.

• Degassing: Removing trapped gases from compatible materials and liquids.

• Vacuum chambers: Evacuating compatible chambers and enclosed systems.

• Scientific equipment: Providing a mechanical vacuum source for compatible laboratory instruments.

• Industrial testing: Supporting vacuum-dependent testing and process evaluation.

• Research and development: Assisting experiments that require controlled reduced-pressure conditions.

• Educational laboratories: Supporting demonstrations and practical experiments involving vacuum technology.

• Vacuum processing: Providing vacuum for suitable processes within the pump's operating limits.

2.3. Product Features

• Welch-branded vacuum equipment manufactured by Gardner Denver Thomas GmbH.

• P 4 Z rotary-vane pump configuration.

• Labovac 14 identification on the manufacturer's nameplate.

• Pumping speed of 4.6 m³/h at 50 Hz.

• Pumping speed of 5.5 m³/h at 60 Hz.

• Nameplate-specified ultimate vacuum of \(8 \times 10^{-3}\) mbar.

• Electrical ratings marked 100/115/230 V, 50/60 Hz.

• Nominal rotational speed of 1,500 rpm at 50 Hz.

• Nominal rotational speed of 1,800 rpm at 60 Hz.

• Suitable for compatible laboratory, research, and industrial vacuum applications.

• Model identification number 322002-05 for product identification.

2.4. Technical Specifications

2.5. Product Condition

Recommended condition: Used / Pre-owned

The supplied image shows the manufacturer's identification label but does not establish the complete physical or operational condition of the pump.

Suggested WooCommerce condition statement:

“Pre-owned Welch P 4 Z rotary-vane vacuum pump with Labovac 14 identification. Specifications are transcribed from the manufacturer's nameplate. Actual vacuum performance, electrical configuration, and included accessories should be confirmed before purchase.”

If the pump has been serviced and performance-tested, you may select Refurbished and describe only the work that has actually been completed.