ROCKER WaterVac201-MB Direct-Drain Vacuum Filtration System

Overview

The ROCKER WaterVac201-MB is a compact, direct-drain vacuum filtration system engineered for high-efficiency liquid clarification and particulate removal in life science laboratories. Unlike conventional vacuum filtration setups that rely on intermediate waste bottles and external vacuum sources, the WaterVac201-MB integrates a brushless DC vacuum pump and gravity-assisted drainage into a single self-contained unit. It operates on the principle of negative pressure-driven flow across microporous membranes—typically 0.22 µm or 0.45 µm pore size—enabling rapid, consistent separation of suspended solids, cells, or precipitates from aqueous or low-viscosity biological solutions. Designed specifically for benchtop use in cell culture, microbiology, buffer preparation, and quality control workflows, the system eliminates bottlenecks associated with manual waste handling, tubing reconfiguration, and vacuum source calibration. Its certified CE compliance, IP41 ingress protection, and RoHS-conformant construction ensure safe, reliable operation under standard GLP-compliant laboratory conditions.

Key Features

• Integrated brushless DC motor vacuum pump delivering stable vacuum up to 313 mbar (–525 mmHg) with minimal heat generation and extended service life
• True direct-drain architecture: filtered liquid flows continuously into a floor drain or sink via gravity, eliminating need for waste bottles, hose disconnection, or manual emptying
• Space-optimized footprint (21.4 × 18.3 × 26.4 cm) reduces benchtop occupancy by ~70% compared to traditional dual-bottle vacuum systems
• Modular filter holder design supports rapid interchange of stainless steel filter cups (100 mL, 300 mL, or 500 mL options) without tools or recalibration
• Chemically resistant wetted path constructed from 316 stainless steel, FKM elastomers, medical-grade silicone, PP, and PPS—validated for compatibility with common buffers, alcohols, and mild solvents
• Low-noise operation (<52 dB(A)) and DC 24 V power supply enhance electrical safety and simplify integration into regulated lab environments

Sample Compatibility & Compliance

The WaterVac201-MB is validated for filtration of aqueous samples including cell culture supernatants, centrifuged lysates, clarified fermentation broths, PBS washes, and sterile-filtered media. It is not intended for organic solvents, high-viscosity fluids (>10 cP), or corrosive acids/bases beyond pH 2–12. All wetted materials comply with USP Class VI biocompatibility requirements and FDA 21 CFR 177.2440 (for silicone) and 177.1520 (for polypropylene). The system meets IEC 61000-6-3 (EMC) and IEC 61000-6-1 (immunity) standards. CE marking confirms conformity with the EU Machinery Directive 2006/42/EC and Low Voltage Directive 2014/35/EU. IP41 rating provides protection against solid objects ≥1 mm and vertically falling water droplets—suitable for controlled indoor laboratory use only.

Software & Data Management

The WaterVac201-MB is a standalone hardware device with no embedded microprocessor, touchscreen, or digital interface. As such, it does not generate electronic records, require firmware updates, or support network connectivity. This analog architecture inherently satisfies ALCOA+ data integrity principles for non-critical filtration steps where audit trails are not mandated. For laboratories operating under 21 CFR Part 11 or Annex 11 requirements, the system may be documented within paper-based or LIMS-managed SOPs as a fixed-parameter auxiliary device. Optional accessories—including calibrated flow meters or inline pressure transducers—can be integrated externally for process validation studies requiring quantitative vacuum monitoring.

Applications

• Routine sterilization of culture media and reagents using 0.22 µm PVDF or nylon membranes
• Clarification of bacterial or mammalian cell lysates prior to chromatography or electrophoresis
• Removal of precipitated proteins or aggregates during buffer exchange protocols
• High-throughput sample preparation for HPLC mobile phase filtration and solvent degassing support
• Environmental water testing labs performing membrane filtration for coliform enumeration (per ISO 9308-1)
• QC/QA labs conducting particulate matter testing per USP for injectables (when used with appropriate filter assemblies)

FAQ

Can the WaterVac201-MB be used with organic solvents such as acetone or chloroform?
No. The wetted materials are not chemically rated for halogenated or ketonic solvents. Only aqueous solutions and alcohols (e.g., ethanol, isopropanol) below 30% v/v are recommended.
Is the system compatible with vacuum-controlled manifolds for multi-position filtration?
No. The WaterVac201-MB is designed exclusively for single- or dual-cup configurations. It lacks vacuum regulation ports or manifold interface capability.
Does the unit include a built-in vacuum gauge or pressure sensor?
No. Vacuum level is fixed at factory-set performance; no real-time monitoring or adjustment is provided.
What maintenance is required for the brushless DC motor and pump assembly?
No scheduled maintenance is required. The sealed motor and diaphragm pump are rated for >10,000 hours of continuous operation under nominal load conditions.
Can the system be validated for GMP manufacturing environments?
Yes—as a Class I, non-measuring, non-recording auxiliary device, it may be included in equipment qualification protocols (IQ/OQ) when paired with documented filter integrity testing and procedural controls.