ILMVAC PS 40 Single-Stage Rotary Vane Vacuum Pump
| Origin | Germany |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | PS 40 |
| Quotation | Upon Request |
| Ultimate Pressure | <1.0 mbar |
| Pumping Speed | 40.0 m³/h (666 L/min) |
| Weight | 38.0 kg |
| Voltage | 3×220/400 V, 50 Hz |
| Oil Mist Emission | Low |
| Noise Level | ≤58 dB(A) |
| Motor Protection Class | IP54 |
| Oil Capacity | ~1.1 L |
Overview
The ILMVAC PS 40 is a single-stage rotary vane vacuum pump engineered for reliable, continuous operation in demanding laboratory and pilot-scale industrial environments. Based on the proven Couette-flow principle of oil-sealed displacement pumping, it achieves stable ultimate vacuum pressures below 1.0 mbar while delivering a nominal pumping speed of 40.0 m³/h (666 L/min) at the inlet. Designed and assembled in Germany under strict quality control protocols, the PS 40 integrates precision-machined vanes, a hardened rotor chamber, and thermally stabilized cast-iron housing to ensure long-term dimensional stability and minimal wear. Its robust architecture supports uninterrupted duty cycles typical of freeze-drying, solvent recovery, and vacuum-assisted filtration workflows—applications where consistent base pressure and resistance to condensable vapors are critical performance requirements.
Key Features
- Compact footprint and low center-of-gravity design for benchtop or mobile cart integration
- Oil-sealed rotary vane mechanism with carbon-fiber reinforced vanes for extended service life and reduced oil carryover
- Integrated gas ballast valve enabling effective handling of water vapor and mild solvent vapors without oil degradation
- Transparent oil-level sight window with calibrated scale for rapid visual verification of lubricant volume and condition
- Non-return check valve preventing backstreaming of oil into the vacuum chamber upon shutdown
- Low-noise operation (<58 dB(A) at 1 m) achieved through balanced rotor dynamics and acoustic damping housing
- IP54-rated motor enclosure suitable for general laboratory ambient conditions including moderate humidity and particulate exposure
- Oil mist separator standard—minimizes aerosol emissions to meet indoor air quality guidelines per DIN EN 1093-7
Sample Compatibility & Compliance
The PS 40 is compatible with non-reactive, non-polymerizing process gases and vapors commonly encountered in academic, pharmaceutical, and materials science laboratories. It is routinely deployed in applications involving aqueous solutions, alcohols, acetone, ethyl acetate, and other low-to-moderate vapor pressure solvents. While not rated for aggressive halogenated or strongly acidic vapors (e.g., HCl, Cl₂), its stainless-steel shaft seal and nitrile elastomer gaskets provide enhanced chemical resilience compared to entry-level equivalents. The pump complies with CE marking requirements under the EU Machinery Directive 2006/42/EC and Electromagnetic Compatibility Directive 2014/30/EU. It supports GLP-compliant workflows when operated within defined maintenance intervals and documented oil change logs.
Software & Data Management
The PS 40 operates as a standalone mechanical device without embedded digital controls or firmware. However, it is fully compatible with external vacuum monitoring systems—including analog pressure transducers (e.g., Pirani or capacitance manometers) and programmable logic controllers (PLCs)—via standard ¼” NPT vacuum port interfaces. When integrated into automated platforms (e.g., lyophilizers or distillation rigs), its operational status can be logged via auxiliary dry-contact outputs for run-time tracking and preventive maintenance scheduling. No proprietary software or drivers are required; all mechanical parameters adhere to ISO 21360-1:2020 (vacuum pump performance testing) and ASTM D3924-19 (standard practice for vacuum system characterization).
Applications
- Primary vacuum source for laboratory freeze-dryers (lyophilizers) operating down to 0.1–1.0 mbar
- Backing pump for diffusion pumps, turbomolecular pumps, and cryogenic traps in high-vacuum systems
- Vacuum-assisted filtration in analytical sample preparation and microbiological membrane filtration
- Short-path and fractional vacuum distillation of heat-sensitive organic compounds
- Leak detection and vacuum integrity testing of sealed enclosures and piping assemblies
- Inert atmosphere purging and degassing prior to glovebox transfer or reactor charging
- OEM integration into custom vacuum ovens, coating chambers, and environmental test chambers
FAQ
What is the recommended oil type and change interval?
ILMVAC specifies ISO VG 68 mineral-based vacuum pump oil (e.g., ILMVAC VP 68 or equivalent). Oil should be changed after initial 100 hours of operation, then every 500–1000 hours depending on vapor load and duty cycle.
Can the PS 40 be used with corrosive gases?
It is not designed for continuous exposure to chlorine, ammonia, hydrogen sulfide, or strong oxidizers. For such media, a dry scroll or diaphragm pump with chemically resistant materials is advised.
Does the pump include thermal overload protection?
Yes—the motor incorporates a bimetallic thermal cut-off switch compliant with IEC 60034-11, automatically de-energizing the unit if winding temperature exceeds safe limits.
Is the gas ballast valve adjustable or fixed?
It features a manually operated, continuously variable needle valve allowing precise control of air bleed rate during wet pumping phases.
How is compliance with ISO 21360 verified for this model?
Performance data—including ultimate pressure, pumping speed, and power consumption—is certified by third-party testing per ISO 21360-1:2020 at ILMVAC’s accredited calibration lab in Gelnhausen, Germany.

