BUCHI Vac V-500 PTFE Diaphragm Vacuum Pump

The BUCHI Vac V-500 Vacuum Pump is an oil-free PTFE diaphragm vacuum pump designed for evacuating laboratory equipment and creating vacuum for applications such as rotary evaporation, vacuum drying, filtration, and laboratory distillation. The photograph clearly identifies the unit as BUCHI Vac V-500.

The V-500 uses a chemically resistant PTFE diaphragm pumping system and is designed for laboratory vacuum applications requiring a clean, oil-free vacuum. According to the BUCHI operating documentation, the pump can achieve a final vacuum of less than 10 mbar and has a nominal pumping volume of approximately 1.6 m³/h.

The pump can be operated as an individual vacuum source or incorporated into a larger BUCHI vacuum system with compatible vacuum controllers, valve units, and secondary condensers.

Applications

The BUCHI Vac V-500 can be used for rotary evaporation, vacuum drying, vacuum filtration, laboratory distillation, solvent processing, and general laboratory vacuum applications. Its oil-free diaphragm design is particularly useful where contamination from conventional oil-lubricated vacuum pumps is undesirable.

The pump can also be integrated with compatible BUCHI rotary evaporators and vacuum-control accessories. BUCHI documentation describes the V-500 as the core PTFE diaphragm pump used in V-501, V-502, and V-503 vacuum-system configurations.

Main Features

• BUCHI Vac V-500 vacuum pump
• PTFE diaphragm pump technology
• Oil-free vacuum operation
• Final vacuum below 10 mbar
• Approx. 1.6 m³/h pumping volume
• Chemically resistant wetted materials
• Suitable for rotary evaporation
• Suitable for vacuum drying and distillation
• GL-14 vacuum inlet and outlet connections
• Compatible with BUCHI vacuum-control systems
• Laboratory-grade vacuum equipment

Technical Specifications

BUCHI's operating documentation specifies 1.6 m³/h pumping volume, <10 mbar final vacuum, approximately 8 kg weight, 150 × 294 × 236 mm dimensions, and 240 W power consumption for the V-500. Multiple electrical versions were produced.

Benefits of Refurbished Laboratory Equipment

Refurbished laboratory vacuum pumps can provide laboratories with a cost-effective way to obtain established vacuum technology for routine research and processing applications. The BUCHI V-500 is particularly useful for laboratories working with rotary evaporators and other equipment requiring an oil-free vacuum source.

Before use, a refurbished pump should be inspected and tested for diaphragm condition, valve condition, vacuum performance, electrical safety, inlet/outlet connections, and operating noise. The photograph shows significant external wear and contamination, so the actual vacuum performance should be verified before installation.

Additional Information

The photographed unit is clearly identified as a BUCHI Vac V-500. The unit shown has substantial cosmetic wear and accumulated laboratory residue. The listing should therefore be considered for refurbished/used laboratory equipment, subject to inspection and testing.

The exact electrical version should be confirmed from the rating plate before connection because BUCHI produced the V-500 in multiple voltage configurations. Compatible accessories such as the V-800 vacuum controller, valve unit, and secondary condenser are configuration-dependent and are not assumed to be included unless specifically stated.