ChemVak V300 Oil-Free Piston Vacuum Pump

Overview

The ChemVak V300 is an oil-free piston vacuum pump engineered for reliable, low-maintenance operation in general laboratory environments. Based on positive displacement via a precision-machined reciprocating piston mechanism, the V300 generates vacuum through mechanical compression without requiring lubricating oil—eliminating oil contamination risks, vapor backstreaming, and routine oil changes. Its robust architecture delivers stable performance across a wide operating range, with an ultimate vacuum of 150 mbar and a maximum free-air flow rate of 20 L/min. Designed for quiet operation (50 dB[A]), the pump meets acoustic requirements for shared lab spaces where operator comfort and ambient noise control are critical. The integrated thermal overload protection ensures operational safety during extended duty cycles or elevated ambient temperatures.

Key Features

• Oil-free piston design prevents sample contamination and eliminates oil disposal concerns—ideal for applications sensitive to hydrocarbon residues.
• Thermally protected induction motor (60 W, 220–240 V / 50 Hz) with 1450 rpm nominal speed ensures consistent torque and long service life.
• Low-noise operation (50 dB[A]) achieved through vibration-dampened mounting, balanced crankshaft assembly, and optimized muffler geometry.
• Reversible functionality: With optional pressure conversion kit (sold separately), the V300 can operate as a pressure source up to +0.2 bar gauge—supporting filtration, purging, and sample transfer tasks.
• Compact footprint (275 × 165 × 150 mm) and lightweight construction (4.1 kg) facilitate benchtop integration and mobility between workstations.
• Standard 8 mm barbed inlet port compatible with common vacuum tubing (e.g., silicone, PVC, or reinforced nitrile); no special adapters required for basic setup.

Sample Compatibility & Compliance

The ChemVak V300 is intended for non-corrosive, non-condensable gas handling in ambient-temperature laboratory workflows. It is not rated for solvent vapors, acidic or alkaline gases, particulate-laden streams, or explosive atmospheres. When used within its specified operating envelope, the pump complies with IEC 61000-6-3 (EMC emission limits) and IEC 61000-6-2 (immunity). Its oil-free construction supports compliance with ISO 8573-1 Class 0 certification requirements for instrument air quality when paired with appropriate inline filtration (e.g., coalescing and activated carbon filters). While not intrinsically safe, the V300 may be deployed in GLP- or GMP-aligned labs where documented risk assessment confirms suitability for defined vacuum-assisted procedures (e.g., rotary evaporation, filtration, desiccation).

Software & Data Management

The ChemVak V300 operates as a standalone analog device with no embedded microcontroller, firmware, or digital interface. As such, it does not support data logging, remote monitoring, or software integration. This design prioritizes electromagnetic compatibility (EMC), mechanical reliability, and regulatory simplicity—making it suitable for environments where IT validation overhead must be minimized (e.g., QC labs under FDA 21 CFR Part 11 or EU Annex 11 where only validated software systems require audit trails). Users seeking automated vacuum control may integrate the V300 with external pressure transducers and programmable logic controllers (PLCs) via standard 4–20 mA or 0–10 V analog signals using third-party accessories.

Applications

• Routine vacuum filtration of aqueous or mild organic solutions using Buchner or Hirsch funnels.
• Evacuation of desiccators and vacuum ovens operating above 150 mbar (e.g., moisture removal from hygroscopic solids).
• Supporting rotary evaporators handling low-boiling-point solvents (e.g., diethyl ether, acetone, hexane) where deep vacuum is not required.
• Gas sampling preparation, including vacuum degassing of liquid samples prior to GC or ICP-MS analysis.
• Pressure-driven processes such as membrane filtration priming, column packing, or inert gas purging of reaction vessels.
• Educational labs requiring durable, intuitive vacuum sources for student experiments in chemistry and biology curricula.

FAQ

Can the V300 be used with corrosive vapors such as HCl or NH₃?
No. The pump’s elastomeric seals and internal components are not chemically resistant to aggressive or condensable vapors. Exposure may cause premature seal degradation and loss of vacuum integrity.
Is the V300 suitable for high-vacuum applications like mass spectrometry or freeze drying?
No. With an ultimate vacuum of 150 mbar, the V300 serves only rough vacuum applications. It cannot replace scroll, diaphragm, or turbomolecular pumps required for pressures below 1 mbar.
Does the V300 require periodic maintenance beyond cleaning the exterior?
No scheduled maintenance is required. The piston rings and cylinder are designed for >10,000 hours of operation under normal load. Users should inspect inlet tubing and filters quarterly for blockage or cracking.
Can multiple V300 units be operated in parallel to increase flow capacity?
Yes—parallel operation is mechanically feasible and commonly implemented in multi-station vacuum manifolds. Ensure equalized inlet resistance and use individual isolation valves to prevent cross-flow during servicing.
What certifications does the V300 carry for North American or European markets?
The unit bears CE marking per EMC Directive 2014/30/EU and RoHS 2011/65/EU. UL/cUL listing is not available; users requiring UL certification should consult ChemVak’s V400 or V600 series models.