Titan VWP-2 Circulating Water Vacuum Pump

Overview

The Titan VWP-2 Circulating Water Vacuum Pump is an oil-free, water-sealed vacuum generation system engineered for reliable, low-maintenance operation in academic laboratories, quality control environments, and small-scale R&D settings. Unlike mechanical rotary vane or diaphragm pumps, the VWP-2 employs a water-ring (liquid-ring) principle: a rotating impeller eccentrically mounted within a water-filled casing generates vacuum through centrifugal displacement of the water seal—creating sequential compression and evacuation chambers. This design eliminates the need for lubricating oil, thereby preventing hydrocarbon contamination of vacuum lines and samples—a critical requirement for solvent evaporation, vacuum filtration, rotary evaporation support, and inert-atmosphere glovebox purging. With an ultimate vacuum of 0.098 MPa (equivalent to ~735 Torr absolute or ~98 kPa suction pressure), the VWP-2 delivers sufficient negative pressure for most non-ultrahigh-vacuum applications while maintaining stable flow across variable backpressure conditions.

Key Features

• Oil-free operation ensures clean vacuum output—no risk of oil vapor carryover into condensers, traps, or reaction vessels.
• Integrated water reservoir with level indicator and overflow protection minimizes operator intervention during extended runs.
• Corrosion-resistant pump body constructed from reinforced polypropylene (PP) and stainless steel fasteners withstands exposure to mild organic solvents and aqueous vapors.
• Thermally protected 180 W induction motor provides consistent torque and extends service life under continuous duty cycles.
• Compact footprint (385 × 285 × 420 mm) and lightweight design (11 kg) enable flexible placement on fume hoods, benchtops, or mobile lab carts.
• Standard G1/4″ BSP threaded inlet/outlet ports allow direct connection to common vacuum tubing, filter flasks, and evaporator manifolds using silicone or Viton®-rated fittings.

Sample Compatibility & Compliance

The VWP-2 is compatible with standard laboratory glassware including Büchner funnels, Hirsch funnels, side-arm Erlenmeyer flasks, and rotary evaporator vapor ducts. Its water-seal mechanism inherently tolerates transient vapor loads from ethanol, acetone, ethyl acetate, and aqueous solutions—provided condensation traps are used upstream to prevent liquid ingress. While not certified to ISO 8573 or ASTM D2622 for compressed air purity, the pump conforms to IEC 61000-6-3 (EMC emission limits) and meets China’s GB 4706.1-2005 safety standards for household and similar electrical appliances. For GLP-compliant workflows, users may log operating time and visual inspection records manually; no built-in audit trail or electronic signature capability is provided.

Software & Data Management

The Titan VWP-2 operates as a standalone analog device with no embedded microcontroller, display interface, or digital communication port (e.g., RS-232, USB, or Ethernet). All operational parameters—including vacuum level and flow rate—are determined externally using calibrated vacuum gauges (e.g., Pirani or capacitance manometers) and flow meters. No proprietary software, driver installation, or firmware updates are required. This architecture ensures electromagnetic compatibility in sensitive instrumentation areas and simplifies validation documentation for regulated environments where deterministic, non-programmable hardware is preferred.

Applications

• Vacuum-assisted gravity filtration of crystalline precipitates and particulate suspensions.
• Support vacuum source for rotary evaporators handling heat-sensitive compounds below 60 °C.
• Evacuation of desiccators and vacuum ovens during moisture content analysis (per ASTM E1293 or USP <731>).
• Gas-phase extraction setups requiring moderate vacuum stability over 4–8 hour durations.
• Preliminary degassing of solvents prior to Schlenk-line transfers or catalyst activation protocols.
• Teaching labs: Demonstrating gas laws, vapor pressure relationships, and fluid dynamics principles via real-time vacuum gauge observation.

FAQ

Is the VWP-2 suitable for use with aggressive solvents such as chloroform or concentrated nitric acid?
No. While resistant to mild organics and dilute acids, prolonged exposure to halogenated solvents or strong oxidizers may degrade the polypropylene housing and impeller seals. Always consult chemical compatibility charts before deployment.
Can this pump achieve high vacuum (<10⁻² mbar)?
No. The VWP-2 is designed for rough vacuum only (≥10 mbar absolute). It cannot replace diffusion pumps, turbomolecular pumps, or two-stage diaphragm systems intended for high or ultra-high vacuum applications.
Does the unit include a water chiller or temperature control?
No. The VWP-2 relies on ambient-temperature tap water or recirculated deionized water (with external cooling if required). Users must manage water temperature independently to maintain vacuum stability.
What maintenance intervals are recommended?
Inspect water level and cleanliness daily; replace reservoir water every 8–12 hours of cumulative operation. Annually inspect impeller clearance, shaft seal integrity, and motor insulation resistance per manufacturer’s service bulletin.
Is the pump compliant with FDA 21 CFR Part 11 for electronic records?
Not applicable—the VWP-2 contains no electronic data capture, storage, or transmission components. It is fully manual and qualifies as “non-electronic” equipment under Part 11 scope definitions.