ILMVAC PK 2 DC Two-Stage Rotary Vane Vacuum Pump
| Origin | Germany |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | PK 2 DC |
| Quotation | Upon Request |
| Ultimate Pressure | <1 × 10⁻² mbar |
| Pumping Speed | 1.8 m³/h (30 L/min) |
| Weight | 8.0 kg |
| Voltage | 220 V AC |
Overview
The ILMVAC PK 2 DC is a precision-engineered two-stage rotary vane vacuum pump designed for demanding laboratory and light industrial applications requiring stable, low ultimate pressure and high operational reliability. Operating on the principle of positive displacement via rotating vanes within an eccentrically mounted rotor chamber, the PK 2 DC achieves ultimate vacuum levels below 1 × 10⁻² mbar—making it suitable as both a standalone roughing pump and a forepump for high-vacuum systems such as diffusion pumps, turbomolecular pumps, or cryogenic traps. Its compact footprint (270 × 145 × 240 mm), low mass (8.0 kg), and integrated 220 V AC motor enable seamless integration into benchtop vacuum manifolds, glove boxes, freeze dryers, and analytical instrument interfaces. The pump’s dual-stage architecture enhances vapor handling capability and improves ultimate vacuum performance compared to single-stage equivalents—particularly critical in applications involving water vapor, solvent vapors, or mild corrosive process gases.
Key Features
- Two-stage rotary vane design delivering <1 × 10⁻² mbar ultimate pressure with 1.8 m³/h (30 L/min) nominal pumping speed at 50 Hz
- Hermetically sealed oil-lubricated system with optimized vane geometry and precision-machined stator/rotor tolerances for minimal internal leakage and long-term stability
- Integrated oil-level indicator window with calibrated scale—enabling real-time visual monitoring without disassembly
- Anti-backstreaming check valve prevents oil migration into the vacuum chamber upon shutdown, preserving sample integrity and reducing contamination risk
- Low-noise operation (<52 dB(A) at 1 m), achieved through balanced rotor dynamics, vibration-damped mounting, and acoustic enclosure design
- Enhanced chemical resistance via corrosion-inhibited mineral oil formulation and stainless steel internal components in critical flow paths
- Minimal oil mist emission (<0.5 mg/m³), compliant with ISO 8573-1 Class 4 compressed air purity standards for laboratory environments
- Thermal overload protection and automatic restart delay safeguard against dry-running or overheating during intermittent duty cycles
Sample Compatibility & Compliance
The PK 2 DC is compatible with standard KF-16, KF-25, and NW25 vacuum flanges and supports continuous operation with condensable vapors—including water, ethanol, acetone, and ethyl acetate—without rapid oil degradation. It meets DIN EN ISO 21500 for vacuum pump safety requirements and conforms to EU Machinery Directive 2006/42/EC and Low Voltage Directive 2014/35/EU. While not intrinsically rated for explosive atmospheres, its oil-sealed architecture provides inherent isolation from electrical hazards in typical lab settings. For GLP/GMP-regulated workflows, the pump supports traceable maintenance logs and is compatible with oil change schedules aligned with ASTM D2889-18 (Standard Practice for Monitoring Lubricant Condition in Rotary Vacuum Pumps).
Software & Data Management
As a standalone mechanical pump, the PK 2 DC operates without embedded firmware or digital control interfaces. However, it integrates seamlessly with third-party vacuum control systems (e.g., VAT, Pfeiffer, or Edwards controllers) via analog 0–10 V or 4–20 mA signals when equipped with optional pressure transducer inputs. Its stable performance characteristics enable reproducible vacuum ramp profiles in automated freeze-drying cycles or distillation protocols. All technical documentation—including service manuals, oil specification sheets (ILMVAC VP 100), and CE declaration of conformity—is provided in English and complies with ISO/IEC 17025 documentation traceability standards.
Applications
- Primary roughing pump for rotary evaporators, freeze dryers (lyophilizers), and vacuum ovens
- Forevacuum support for turbomolecular and diffusion pumps in surface analysis (XPS, AES) and mass spectrometry systems
- Vacuum filtration and solvent recovery in synthetic chemistry labs
- Leak testing (helium mass spectrometry pre-pumping) and vacuum impregnation of porous materials
- In-line vacuum degassing for polymer processing and thin-film deposition setups
- Gas sampling and inert atmosphere purging in glovebox antechambers
FAQ
What is the recommended oil change interval under continuous operation?
Under standard laboratory conditions (8 h/day, ambient temperature ≤30 °C), oil replacement is advised every 3,000 operating hours or annually—whichever occurs first—using ILMVAC VP 100 synthetic mineral oil.
Can the PK 2 DC be used with aggressive solvents like chloroform or THF?
While the pump exhibits enhanced chemical resistance versus conventional rotary vane designs, prolonged exposure to halogenated or highly polar solvents requires installation of a cold trap and use of chemically stabilized oil; consult ILMVAC Technical Bulletin TB-PK2-04 for solvent compatibility matrices.
Is the pump compatible with 220 V / 60 Hz power supplies?
Yes—the PK 2 DC motor is rated for 220–240 V AC, 50/60 Hz operation with auto-sensing frequency detection; no external transformer required.
Does the pump include an exhaust filter?
A replaceable activated carbon–impregnated oil mist filter (Order No. PK-FIL-01) is available as an accessory to further reduce hydrocarbon emissions in sensitive lab environments.
What certifications accompany the unit upon shipment?
Each PK 2 DC ships with CE marking, RoHS Declaration of Conformity, Factory Test Report (including ultimate pressure and pumping speed verification), and full English-language user manual compliant with ISO/IEC Guide 37.
