WIGGENS R-24D Dual-Stage Oil-Sealed Rotary Vane Vacuum Pump

Overview

The WIGGENS R-24D is a dual-stage, oil-sealed rotary vane vacuum pump engineered for reliable and continuous operation in demanding laboratory and pilot-scale industrial applications. Based on the proven principles of positive displacement via rotating vanes within an eccentrically mounted rotor chamber, the R-24D achieves stable ultimate vacuum levels down to 4 × 10⁻⁴ mbar while delivering a nominal pumping speed of 360 L/min at atmospheric pressure. Its robust cast-iron housing, precision-machined rotor and vanes, and optimized oil circulation system ensure high volumetric efficiency and long-term dimensional stability under thermal cycling. Designed as a general-purpose primary vacuum source, the R-24D serves both standalone roles—such as vacuum filtration, freeze drying, and solvent evaporation—and as a forepump for high-vacuum systems including turbomolecular pumps and diffusion pumps. The pump complies with IEC 60034-1 for motor performance and meets CE marking requirements for electromagnetic compatibility (EMC) and low-voltage directive (LVD) conformity.

Key Features

• Dual-stage configuration enables deeper ultimate vacuum and improved compression ratio compared to single-stage equivalents
• Integrated gas ballast valve allows controlled admission of ambient air to facilitate removal of condensable vapors (e.g., water, solvents), minimizing oil contamination and extending oil service life
• IP44-rated sealed motor provides protection against solid objects ≥1 mm and splashing water from any direction—suitable for standard laboratory environments
• Circular oil-level sight glass with calibrated markings enables rapid, accurate visual verification of oil volume without disassembly
• Anti-backstreaming design prevents oil migration into the vacuum line upon shutdown, eliminating risk of sample or system contamination
• Low-noise operation (< 56 dB(A) with gas ballast closed) achieved through balanced rotor dynamics, vibration-damping feet, and acoustic enclosure integration
• Enhanced chemical resistance via corrosion-inhibited pump oil compatibility and nickel-plated internal surfaces where exposed to mild aggressive vapors
• Thermal overload protection built into the motor winding ensures automatic shutdown under sustained overcurrent or elevated ambient temperature conditions

Sample Compatibility & Compliance

The R-24D is compatible with non-reactive, non-particulate, and moderately corrosive vapor streams when used with appropriate cold traps or scrubbers. It is not intended for pumping explosive, highly toxic, polymerizing, or abrasive-laden gases. For applications involving halogenated solvents or acidic vapors, installation of a chemically resistant cold trap upstream is strongly recommended. The pump supports GLP-compliant workflows through traceable maintenance logs and consistent performance across extended duty cycles. While not certified to ISO 22853 or ASTM F2435 for pharmaceutical vacuum processes, its repeatability and documented oil change intervals align with common lab quality management expectations. All electrical components conform to RoHS 2011/65/EU and REACH SVHC regulations.

Software & Data Management

The R-24D operates as a stand-alone electromechanical device with no embedded digital controller or data interface. However, its operational parameters—including runtime, oil condition indicators (via scheduled visual inspection), and gas ballast usage—are fully integrable into facility-wide preventive maintenance tracking systems (e.g., CMMS). Users may log vacuum gauge readings, pump-down time to target pressure, and oil color/clarity observations using standardized electronic lab notebooks (ELN) compliant with 21 CFR Part 11 when paired with validated entry protocols. No firmware updates or software licensing are required or supported.

Applications

• Vacuum distillation and concentration of heat-sensitive organic compounds
• Rotary evaporation under controlled vacuum conditions
• Freeze drying (lyophilization) of biological samples and pharmaceuticals
• Membrane filtration and Büchner funnel-based solid–liquid separation
• Leak testing of sealed enclosures and vacuum chambers
• Thin-film deposition pre-evacuation and backing for sputtering or e-beam systems
• Adsorption studies requiring stable sub-mTorr base pressure
• Packaging of moisture-sensitive materials under inert gas purge sequences

FAQ

What is the recommended oil change interval for the R-24D?
Under continuous operation with non-condensable loads, oil should be replaced every 500 operating hours; with intermittent use and frequent gas ballast activation, replace oil every 250 hours or when discoloration or emulsification is observed.
Can the R-24D be used with a vacuum controller or automated pressure regulation system?
Yes—its analog inlet port allows integration with external vacuum regulators, PID-controlled throttle valves, or capacitance manometers via standard KF25 flanges and compatible instrumentation signals.
Is the R-24D suitable for pumping hydrogen or helium?
Due to higher molecular diffusivity and lower compression ratios for light gases, pumping speeds for H₂ and He are reduced by approximately 30–40% relative to nitrogen; consult the manufacturer’s performance curves before deployment.
Does the pump include a built-in exhaust filter?
No—WIGGENS supplies optional oil mist filters (e.g., model OF-25) separately to meet local ventilation or indoor air quality requirements.
What maintenance tasks require factory authorization?
Rotor/vane replacement, bearing servicing, and calibration of internal clearances must be performed by WIGGENS-certified technicians to preserve warranty coverage and performance specifications.