LabTech VP30 / VP50 / VP18plus / VP50plus Oil-Free Vacuum Pump

Overview

The LabTech VP Series oil-free diaphragm vacuum pumps are engineered for reliable, contamination-free vacuum generation in analytical, pharmaceutical, environmental, and academic laboratories. Unlike rotary vane or piston pumps requiring lubricating oil, these units operate via an electromechanically driven elastomeric diaphragm that reciprocates within a sealed chamber—creating suction through positive displacement without introducing hydrocarbon vapors or particulate carryover into the vacuum line. This principle ensures consistent performance across demanding applications such as Büchner funnel filtration, solvent evaporation, solid-phase extraction (SPE), and vacuum-assisted sample concentration. The absence of oil eliminates risks of backstreaming, cross-contamination, and routine oil changes—making the VP Series particularly suitable for QC/QA labs operating under cGMP or ISO/IEC 17025 frameworks where traceability and system integrity are critical.

Key Features

• Oil-free operation with PTFE-molded diaphragms and chemically resistant valve assemblies—enabling stable performance in presence of organic solvents, acidic vapors, and mildly corrosive gases
• Multi-model configuration: VP18plus (18 L/min), VP30 (24 L/min), VP50 (42 L/min), and high-capacity VP50plus (50 L/min) to match varying throughput requirements
• Corrosion-inhibited aluminum alloy housing with powder-coated finish; internal wetted parts treated for enhanced durability in aggressive chemical environments
• Low-noise design (<52 dB(A) at 1 m) and vibration-damped mounting—optimized for shared lab spaces and sensitive instrumentation proximity
• Thermally protected motor with automatic thermal cutoff; integrated pressure relief valve prevents over-vacuum conditions during filter clogging or line blockage
• Modular service architecture: Diaphragm kits, inlet filters, and exhaust mufflers are field-replaceable without specialized tools

Sample Compatibility & Compliance

These pumps are validated for continuous duty cycles with aqueous, alcoholic, acetone, ethyl acetate, and dilute acid/base solutions commonly encountered in gravimetric analysis, HPLC sample prep, and EPA Method 1664B extractions. The PTFE vacuum membrane—formed via single-stage compression molding—exhibits uniform thickness (>1.2 mm) and minimal cold flow under sustained negative pressure, ensuring >10,000 hours MTBF under nominal load. All models meet CE marking requirements for electromagnetic compatibility (EN 61326-1) and safety (EN 61010-1). While not certified for ATEX Zone 1 use, their spark-free motor design and non-lubricated architecture render them appropriate for Class 1, Division 2 laboratory environments per NFPA 45. Documentation packages support FDA 21 CFR Part 11–aligned validation protocols when paired with LabTech’s optional digital vacuum controller (VPC-200).

Software & Data Management

The VP Series operates as a standalone analog device; however, it integrates seamlessly with LabTech’s VPC-200 programmable vacuum controller—a microprocessor-based module offering real-time vacuum level monitoring (±0.5 mbar repeatability), setpoint-driven pump modulation, and timestamped event logging via USB or RS-485 interface. Logged data export conforms to CSV format for import into LIMS or ELN platforms. Audit trails include operator ID, start/stop timestamps, vacuum deviation alerts, and maintenance cycle reminders—fully compliant with GLP documentation standards. Firmware updates are delivered via secure HTTPS portal with SHA-256 signature verification.

Applications

• Routine vacuum filtration of suspended solids in wastewater, soil extracts, and biological suspensions
• Preparative chromatography sample loading under controlled vacuum (e.g., flash column conditioning)
• Vacuum drying of hygroscopic reference standards prior to gravimetric calibration
• Assisted degassing of mobile phase reservoirs in HPLC and UHPLC systems
• Supporting lyophilizer primary drying stages where oil-free vacuum is mandated by USP <1211>
• Environmental testing per ASTM D5291 (ash content) and ISO 11885 (heavy metals digestion)

FAQ

What vacuum level can the VP50plus achieve under standard lab conditions?
Typical ultimate vacuum is 5–7 mbar absolute at 23°C ambient; actual performance depends on system volume, tubing length, and filter resistance.
Can this pump handle saturated solvent vapors from rotary evaporation?
Yes—when used with a LabTech cold trap (CT-100) and inline condenser, it tolerates intermittent exposure to ethanol, methanol, and dichloromethane vapors.
Is routine maintenance required beyond filter replacement?
No scheduled lubrication is needed; annual inspection of diaphragm integrity and inlet filter cleaning suffices for most applications.
Does LabTech provide IQ/OQ documentation for GMP facilities?
Yes—validated protocol templates, factory test reports, and calibration certificates (traceable to NIM, China) are available upon order confirmation.
How does the VP18plus differ from the VP30 in terms of application scope?
The VP18plus prioritizes ultra-quiet operation and compact footprint for benchtop SPE workstations, whereas the VP30 offers higher flow reserve for multi-funnel parallel filtration setups.