The BUCHI Vac V-300 Vacuum Pump is a chemically resistant, oil-free PTFE diaphragm vacuum pump designed for laboratory vacuum applications. The unit shown in the photograph is clearly identified as BUCHI Vacuum Pump V-300 and features the characteristic dual-pump-head configuration behind the transparent front panel.

The V-300 is designed to evacuate laboratory apparatus to an ultimate vacuum of approximately 5 mbar. BUCHI specifies a suction capacity of 1.8 m³/h, making the pump suitable for laboratory-scale vacuum generation and applications such as rotary evaporation, distillation, vacuum filtration, and vacuum drying.

The chemically resistant diaphragm construction allows the pump to handle suitable solvent vapors and laboratory gases without the use of conventional pump oil. The V-300 can also be integrated with compatible BUCHI vacuum-control equipment and Rotavapor systems.

Applications

The BUCHI Vac V-300 can be used for rotary evaporation, laboratory distillation, vacuum drying, vacuum filtration, solvent processing, and general laboratory vacuum applications. Its oil-free diaphragm technology is useful where contamination from oil-lubricated vacuum pumps is undesirable.

The pump can operate as a standalone vacuum source or be integrated with compatible BUCHI accessories such as vacuum controllers, Woulff bottles, secondary condensers, and Rotavapor systems. The actual accessories included with the pictured unit should be confirmed separately.

Main Features

• BUCHI Vac V-300 vacuum pump
• Oil-free PTFE diaphragm technology
• Chemically resistant pump construction
• Approx. 1.8 m³/h suction capacity
• Approx. 5 mbar ultimate vacuum
• Dual diaphragm pump-head configuration
• GL14 vacuum connection
• Maximum pump speed of approximately 1,500 rpm
• Suitable for rotary evaporation and distillation
• Suitable for vacuum drying and filtration
• Compatible with BUCHI vacuum-control systems

Technical Specifications

BUCHI specifies 1.8 m³/h suction capacity, 5 mbar final vacuum, 100–240 VAC, 50/60 Hz, 180 W, 1,500 rpm, GL14 connection, and approximately 7.6 kg weight for the V-300.

Benefits of Refurbished Laboratory Equipment

Refurbished laboratory vacuum pumps can provide laboratories and research facilities with access to established vacuum technology at a lower acquisition cost than new equipment. The BUCHI V-300 is particularly suitable for laboratories using rotary evaporators and other equipment requiring clean, oil-free vacuum.

Before use, the pump should be professionally inspected and tested for vacuum performance, diaphragm condition, valve operation, electrical safety, connections, and operating noise. The photograph shows significant cosmetic wear, so the external appearance should be distinguished from actual operating performance.

Additional Information

The photographed unit is clearly identified as a BUCHI Vac V-300. The photograph does not show the complete rear rating plate or all accessories, so the exact electrical configuration and included components should be confirmed before purchase.

BUCHI documentation lists optional accessories including an I-300 interface, Woulff bottle, secondary cold trap, and secondary condenser. These accessories should not be assumed to be included unless specifically stated in the sale.

• BUCHI
• BUCHI V-300 Vacuum Pump
• BUCHI V-300 Operating Manual
• Fisher Scientific