ILMVAC P 12 Z Two-Stage Rotary Vane Vacuum Pump

Overview

The ILMVAC P 12 Z is a two-stage rotary vane vacuum pump engineered for precision, reliability, and long-term stability in demanding laboratory and light industrial vacuum applications. Based on proven Couette-flow displacement mechanics, the pump utilizes two sequentially staged rotors with spring-loaded vanes to achieve progressive compression—enabling ultimate vacuum levels below 2×10⁻³ mbar and partial pressure capability down to 2×10⁻⁴ mbar when operated with appropriate gas ballast or venting protocols. Its compact cast-aluminum housing integrates thermal management features to maintain consistent performance during extended duty cycles, while the oil-lubricated design ensures low vapor pressure and high volumetric efficiency across variable inlet pressures—from atmospheric to high vacuum regimes.

Key Features

• Two-stage rotary vane architecture for enhanced ultimate vacuum and improved pumping speed linearity across the 1–1000 mbar range
• Hermetically sealed, oil-immersed operation with minimal oil carryover—reducing contamination risk in sensitive downstream processes
• Integrated bar-type oil level indicator window enabling real-time visual monitoring without disassembly or downtime
• Anti-backflow check valve prevents oil migration into the vacuum chamber upon shutdown, preserving system integrity and eliminating re-evacuation delays
• High tolerance to water vapor ingress via optimized gas ballast functionality—supporting routine use in freeze-drying and solvent removal workflows
• Low-noise operation (<52 dB(A) at 1 m) and compact footprint (420 × 180 × 280 mm) facilitate benchtop integration in shared lab environments
• Chemically resistant internal coatings and fluorocarbon-compatible sealing materials enhance durability against mild organic vapors and acidic condensates

Sample Compatibility & Compliance

The P 12 Z is compatible with standard ISO-KF 16/25/40 vacuum flanges and accepts common mineral-based and synthetic vacuum pump oils (e.g., ISO VG 100 grade). It meets CE marking requirements per EU Machinery Directive 2006/42/EC and Electromagnetic Compatibility Directive 2014/30/EU. While not certified to ATEX or IECEx standards for explosive atmospheres, its design conforms to general laboratory safety practices outlined in ISO/IEC 17025:2017 for supporting equipment used in accredited testing environments. No direct GLP/GMP validation documentation is provided by default; however, the pump’s mechanical consistency and traceable serial-numbered build support IQ/OQ protocol development for regulated QC labs.

Software & Data Management

The P 12 Z operates as a standalone mechanical device without embedded firmware or digital interfaces. It does not include onboard data logging, USB connectivity, or remote control capabilities. For integration into automated vacuum systems, external pressure transducers (e.g., capacitance manometers or Pirani gauges) and programmable logic controllers (PLCs) may be employed to monitor inlet pressure, runtime, and thermal status. All operational parameters—including oil change intervals (recommended every 3,000 operating hours or annually), filter replacement schedules, and maintenance logs—must be manually recorded per institutional SOPs aligned with ISO 9001 quality management frameworks.

Applications

• Primary vacuum source for lyophilization (freeze-drying) of biological samples, pharmaceuticals, and diagnostic reagents
• Front-end backing pump for diffusion pumps, turbomolecular pumps, and cryopumps in high-vacuum deposition systems
• Vacuum distillation and fractional evaporation setups handling heat-sensitive organic compounds
• Membrane filtration under vacuum (e.g., Buchner funnel or HPLC solvent degassing)
• Leak detection via pressure-rise testing in sealed enclosures and vacuum chambers
• Thin-film coating processes including thermal evaporation and sputtering where stable base pressure is critical prior to process gas introduction
• Integration with analytical instruments such as mass spectrometers, electron microscopes, and residual gas analyzers requiring reliable roughing-stage support

FAQ

What is the recommended oil type for the P 12 Z?
ILMVAC specifies ISO VG 100 mineral or synthetic vacuum pump oil meeting DIN 51506 VDL standards. Use only oils tested for low vapor pressure (<1×10⁻⁶ mbar at 20°C) and oxidative stability.
Can the P 12 Z be used continuously for 24/7 operation?
Yes—provided ambient temperature remains between 15–35°C, ventilation is unobstructed, and scheduled oil changes and filter replacements are performed per maintenance guidelines.
Does the pump include a gas ballast valve?
Yes, the P 12 Z is equipped with an adjustable gas ballast valve to enable controlled air admixture during pumping of condensable vapors, improving water vapor tolerance and reducing oil emulsification.
Is the P 12 Z suitable for corrosive gas applications?
It is rated for intermittent exposure to mildly corrosive vapors (e.g., acetic acid, ethanol); continuous use with halogenated solvents or strong acids requires optional corrosion-resistant internal upgrades not included in the base configuration.
How is ultimate vacuum verified during commissioning?
Ultimate pressure should be measured using a calibrated capacitance manometer after ≥2 hours of pump-down from atmosphere, with all ports sealed and gas ballast closed, per ASTM E1317-21 practice for vacuum system characterization.