BUCHI V-300 Chemical-Resistant Diaphragm Vacuum Pump

Overview

The BUCHI V-300 is a compact, oil-free diaphragm vacuum pump engineered for precision, reliability, and chemical compatibility in modern laboratory environments. Designed specifically to support rotary evaporation systems—including the BUCHI Rotavapor® R-300—the V-300 delivers stable vacuum control down to 5 mbar with a nominal pumping speed of 1.8 m³/h. Its core architecture employs a chemically inert PTFE diaphragm and corrosion-resistant internal components, ensuring long-term operational integrity when handling aggressive solvents such as acetone, dichloromethane, ethyl acetate, and acidic or basic vapors. Unlike oil-lubricated pumps, the V-300 eliminates cross-contamination risks, avoids oil mist emissions, and requires no routine oil changes—making it fully compliant with ISO 14001 environmental management principles and aligned with GLP-compliant workflows where documentation of maintenance interventions must be minimized.

Key Features

• Chemical resistance: Full-wetted path constructed from PTFE, FKM, and PEEK; validated for continuous exposure to common organic and inorganic solvents.
• Acoustic optimization: Integrated sound-dampening housing and advanced vibration isolation deliver <45 dB(A) noise emission during operation—ideal for shared lab spaces and QC laboratories requiring low ambient disturbance.
• Real-time visual monitoring: Patented PEEK/glass transparent window enables direct observation of diaphragm surface condition and solvent condensate accumulation without disassembly.
• Intelligent energy management: ECO Mode automatically reduces motor power to 95 W after 1 hour and further to 60 W after 2 hours of sustained vacuum hold, lowering energy consumption by up to 50% while extending diaphragm service life.
• Fail-safe mechanical interlock: Pump operation is physically disabled unless the outer housing is fully closed, preventing accidental exposure to moving parts and meeting IEC 61010-1 safety requirements.
• Modular expandability: Compatible with BUCHI’s I-300 and I-300 Pro vacuum controllers for programmable pressure ramps, endpoint detection, and automated distillation sequences.

Sample Compatibility & Compliance

The V-300 is certified for use with volatile, polar, and moderately corrosive samples typical in pharmaceutical synthesis, natural product isolation, and analytical sample preparation. Its dry-running, oil-free design ensures compliance with USP Analytical Instrument Qualification guidelines and supports FDA 21 CFR Part 11–aligned data integrity when paired with I-300 Pro and BUCHI LabX® software. The optional secondary condenser meets EN 1093-5 fume containment standards and reduces VOC emissions to <1 ppm at the exhaust port. When equipped with the level sensor module, the system complies with OSHA 1910.1200 hazard communication requirements by triggering audible/visual alerts prior to condensate overflow.

Software & Data Management

While the standalone V-300 operates without software dependency, integration with the I-300 Pro controller enables full digital traceability via BUCHI LabX®. This configuration provides audit-trail-enabled vacuum logging, user-access controls, electronic signatures, and exportable CSV reports—all structured to satisfy ALCOA+ data integrity criteria. Pressure setpoints, ramp profiles, hold durations, and real-time vacuum curves are stored with timestamps and operator IDs. Firmware updates are performed over USB and validated using SHA-256 checksums to ensure version control and cybersecurity compliance per NIST SP 800-53 Rev. 5.

Applications

• Routine rotary evaporation of heat-sensitive compounds under controlled vacuum gradients.
• Concentration of aqueous and organic extracts in natural products labs.
• Supporting vacuum filtration, vacuum drying ovens (e.g., BUCHI B-585), and cold trap systems.
• Enabling gentle solvent removal in peptide synthesis and oligonucleotide purification workflows.
• Providing regulated vacuum for headspace sampling and solid-phase extraction manifolds.

FAQ

What vacuum level can the V-300 achieve with a Rotavapor R-300?
The V-300 reaches a base pressure of ≤5 mbar under standard conditions (23 °C, dry air), sufficient for most rotary evaporation applications across boiling point ranges from 30 °C to 120 °C.
Is the V-300 compatible with aggressive solvents like HCl or HF?
The PTFE diaphragm and wetted materials resist most organic solvents and dilute mineral acids; however, concentrated hydrofluoric acid or hot fuming nitric acid are not recommended—consult BUCHI’s Chemical Resistance Guide for validated exposure limits.
Can the V-300 operate unattended overnight?
Yes—when integrated with an I-300 Pro controller and configured with pressure-hold mode, the pump enters ultra-low-power ECO state after stabilization and maintains vacuum without manual intervention for >12 hours.
How often does the diaphragm require replacement?
Under typical R-300 usage (8 h/day, moderate solvent load), the PTFE diaphragm demonstrates ≥12 months service life; visual inspection via the transparent window allows predictive maintenance scheduling.
Does the V-300 meet CE and UL safety certifications?
Yes—the unit carries CE marking per EU Machinery Directive 2006/42/EC and UL 61010-1 certification for laboratory electrical equipment.