WIGGENS VF205B Portable Vacuum Filtration Kit

Overview

The WIGGENS VF205B Portable Vacuum Filtration Kit is an engineered solution for reliable, field-ready liquid filtration in regulated and research laboratory environments. Designed around the principles of controlled vacuum-driven membrane filtration, the system operates via a brushless induction motor coupled to a diaphragm vacuum pump—ensuring oil-free, contamination-free operation essential for microbiological and trace analytical applications. Its integrated architecture supports both routine gravimetric suspended solids (SS) analysis per ISO 11923 or ASTM D5907 and standardized microbial enumeration workflows aligned with ISO 8199, USP , and EN ISO 9308-1. The kit’s portability, combined with its stable magnetic base and rapid-drain waste bottle configuration, enables deployment in mobile labs, environmental field stations, quality control rooms, and cleanroom-adjacent preparation areas without requiring permanent benchtop installation or compressed air infrastructure.

Key Features

• Oil-free diaphragm vacuum pump delivering ≥150 mbar ultimate vacuum and ≤34 L/min free-air flow—sufficient for rapid filtration of aqueous and low-viscosity organic solvents across 0.22 µm to 0.45 µm membrane formats.
• Magnetic mounting base (integrated into the VF2 glass filtration bottle set) ensures mechanical stability during filtration, minimizing tipping risk—even when handling full 1 L waste volumes or operating on uneven surfaces.
• Rapid-drain waste bottle design with side-mounted valve allows complete, drip-free evacuation of filtrate without disassembling the funnel assembly—reducing cross-contamination risk and improving throughput in high-sample-load workflows.
• Compact footprint (220 × 180 × 290 mm) and 7.5 kg total mass facilitate transport between laboratories or field sites; no external cooling or exhaust ducting required.
• Low-noise operation at 50 dB(A) enables use in shared lab spaces without acoustic interference; compliant with EU Directive 2000/14/EC noise emission limits for laboratory equipment.
• CE-marked pump assembly meets EN 61000-6-3 (EMC) and EN 61000-6-2 (immunity) standards; electrical safety certified to EN 61010-1 for Class I, Pollution Degree 2 laboratory use.

Sample Compatibility & Compliance

The VF205B is validated for use with standard 47 mm and 50 mm diameter membrane filters (cellulose acetate, mixed ester, PVDF, PTFE) and compatible with all common filtration funnels (e.g., Hirsch, Buchner, and sintered glass types). It supports sample matrices including potable water, wastewater effluents, pharmaceutical suspensions, beverage extracts, and HPLC mobile phase solvents. All wetted components—including the VF2 borosilicate glass bottle set (DIN ISO 3585)—are autoclavable (121 °C, 20 min), supporting GLP-compliant sterilization protocols. The system conforms to key regulatory expectations for microbiological testing: it maintains consistent vacuum delivery across variable filter clogging states, enabling reproducible colony-forming unit (CFU) recovery in membrane filtration assays per ISO 7218 and FDA Bacteriological Analytical Manual (BAM) Chapter 4.

Software & Data Management

As a standalone mechanical filtration platform, the VF205B does not incorporate embedded microprocessors or digital interfaces. Its operational parameters are fixed by design to ensure long-term repeatability and minimize calibration drift—consistent with ISO/IEC 17025:2017 Clause 6.4.2 requirements for equipment used in accredited testing. Users record vacuum application time, membrane lot number, and sample identification manually in bound logbooks or LIMS-integrated electronic notebooks. For audit readiness, the absence of firmware eliminates concerns related to 21 CFR Part 11 electronic record integrity; all performance verification (e.g., vacuum decay tests) is documented using traceable analog gauges and stopwatch timing.

Applications

• Quantitative determination of suspended solids (SS) in environmental water samples per ISO 11923 and EPA Method 160.2.
• Membrane filtration-based enumeration of coliforms, E. coli, and heterotrophic plate count (HPC) organisms in drinking water, beverages, and pharmaceutical water systems.
• Pre-filtration of HPLC, GC, and atomic absorption (AA) samples to remove particulates and protect analytical columns or nebulizers.
• Solvent purification prior to synthesis or spectroscopic analysis—particularly where residual moisture or particulate contamination must be excluded.
• Field-deployable backup filtration for emergency response labs conducting rapid water quality screening during outbreak investigations or disaster recovery operations.

FAQ

Is the VF205B suitable for filtering viscous or protein-rich solutions?
The system is optimized for low-to-medium viscosity aqueous and polar solvent streams. For highly viscous or protein-laden samples, pre-centrifugation or coarse pre-filtration is recommended to avoid premature membrane blinding and maintain vacuum stability.
Can the glass VF2 bottle set be replaced with alternative materials (e.g., plastic)?
No—only the original borosilicate glass VF2 set is validated for thermal, chemical, and mechanical compatibility. Substitution with polymer bottles may compromise vacuum integrity, autoclave safety, or dimensional fit with the magnetic base.
Does the kit include a vacuum gauge?
The VF205B does not integrate a built-in vacuum gauge; users should employ an external calibrated analog or digital vacuum manometer (e.g., capacitance or thermocouple type) for process validation and method documentation.
What maintenance intervals are recommended for the diaphragm pump?
Under typical laboratory usage (≤4 h/day), inspect inlet filters quarterly and replace diaphragms every 12–18 months based on vacuum decay measurements per manufacturer’s technical bulletin TB-VF205B-REV3.