BUCHI Vacuum Controller V-800

The BUCHI Vacuum Controller V-800 is a laboratory vacuum control unit designed for precise regulation of vacuum pressure in compatible rotary evaporator and vacuum-system applications. The photographed instrument is clearly identified as BÜCHI Vacuum Controller V-800 and features a front-panel digital display, dedicated control buttons, continuous-operation control, STOP control and status/interface controls.

The V-800 is designed to maintain a selected system pressure by regulating the connected vacuum source and valve. The controller supports manual vacuum operation and pressure set-point control, making it suitable for laboratory evaporation, solvent removal, vacuum distillation and related processes. BUCHI documentation identifies the V-800 as compatible with suitable BUCHI Rotavapor configurations and vacuum pumps/valve units. ManualsLib

The controller can regulate pressure from 1 mbar/torr up to atmospheric pressure, with a published display range of 0–1400 mbar. Hysteresis can be configured automatically or manually between 1 and 500 mbar, allowing the vacuum system to maintain a defined pressure band around the selected set point. ManualsLib

Applications

The BUCHI V-800 is suitable for laboratory vacuum applications including rotary evaporation, solvent concentration, vacuum distillation and controlled evaporation processes. It can regulate vacuum pressure to help maintain stable evaporation conditions when used with a compatible vacuum pump and valve arrangement.

It can also be integrated with compatible BUCHI Rotavapor systems, where controller functions can be configured for automatic ventilation and other connected-system operations. The V-800 documentation also describes installation with water-jet pumps and vacuum pumps with valve units. ManualsLib

Main Features

• BUCHI Vacuum Controller V-800
• Digital vacuum pressure display
• Adjustable vacuum pressure set point
• Vacuum regulation from 1 mbar/torr to atmospheric pressure
• 0–1400 mbar display range
• Automatic or manually adjustable hysteresis
• Continuous vacuum operation control
• STOP function
• Suitable for rotary evaporation applications
• Compatible with appropriate BUCHI vacuum pumps and valve units
• Compatible with selected BUCHI Rotavapor systems
• Automatic ventilation function depending on configuration
• Compact laboratory controller design
• 230 V or 100–120 V versions available depending on configuration
• 16 W power consumption
• 24 V magnetic-valve supply ManualsLib

Technical Specifications

The published BUCHI V-800/V-805 technical data specifies approximately 110 × 110 × 70 mm, 0.9 kg, 16 W, 230 V or 100–120 V versions, and a regulation range from 1 mbar/torr to atmospheric pressure. ManualsLib

Benefits of Refurbished Laboratory Equipment

A refurbished BUCHI V-800 Vacuum Controller can provide a cost-effective solution for laboratories requiring controlled vacuum operation without purchasing a new controller. Its compact design and compatibility with appropriate vacuum pumps and valve systems make it useful as a replacement or additional controller for laboratory evaporation systems.

Refurbished laboratory controllers are particularly useful for research laboratories, educational institutions, chemical laboratories and industrial R&D facilities maintaining older BUCHI Rotavapor systems or compatible vacuum equipment.

Additional Information

The photographed unit shows significant cosmetic wear, scratches, surface dirt and discoloration consistent with previously used laboratory equipment. The display is not visibly active in the photograph, so operational performance should not be inferred from the image alone.

The exact electrical version, rear connections, vacuum sensor condition, valve compatibility and internal electronics should be verified before purchase. Professional electrical and vacuum-performance testing is recommended before operational use. Accessories such as vacuum tubing, valve units, cables and sensors are not included unless specifically stated.