ILMVAC MP 301 Z Two-Stage Chemical-Resistant Diaphragm Vacuum Pump (<8 mbar)

Overview

The ILMVAC MP 301 Z is a two-stage, oil-free diaphragm vacuum pump engineered for precision laboratory vacuum generation in non-aggressive gas environments. Operating on positive displacement via elastomeric diaphragms driven by an eccentric mechanical linkage, it achieves stable ultimate vacuum levels below 8 mbar (absolute) without lubricating oils or working fluids—eliminating risk of sample contamination and enabling clean, dry vacuum conditions essential for analytical, preparative, and process-critical applications. Its compact footprint (W × D × H ≈ 280 × 220 × 270 mm), low mass (11.2 kg), and integrated vibration-damping feet facilitate seamless integration into fume hoods, gloveboxes, benchtop reactors, and modular vacuum manifolds. Designed and assembled in Germany to DIN EN ISO 9001-certified manufacturing standards, the MP 301 Z conforms to IEC 61000-6-3 (EMC emission) and IEC 61000-6-2 (immunity) requirements, ensuring electromagnetic compatibility in shared laboratory infrastructure.

Key Features

• Two-stage diaphragm architecture delivering enhanced compression ratio and improved ultimate vacuum performance compared to single-stage equivalents
• Chemically resistant PTFE-coated diaphragms and EPDM valve assemblies optimized for long-term stability with water vapor, solvents (e.g., acetone, ethanol, ethyl acetate), and inert gases
• No oil, no seals requiring replacement, no exhaust filtration—operation is inherently particle-free and maintenance-minimal
• Integrated thermal overload protection and current-sensing motor control prevent stall-induced overheating during extended duty cycles
• Low-noise operation (<52 dB(A) at 1 m) achieved via balanced counter-rotating crankshafts and acoustic enclosure design
• Universal 220 V AC input with internal voltage regulation; compatible with standard European and Chinese laboratory power grids (50/60 Hz)

Sample Compatibility & Compliance

The MP 301 Z is rated for continuous operation with non-corrosive, non-condensable, and non-particulate gas streams. It is not intended for use with halogenated solvents (e.g., chloroform, DCM), strong oxidizers (e.g., NO₂, O₃), or acidic vapors (e.g., HCl, HF). For vacuum distillation, rotary evaporation, and solvent recovery workflows, it complies with ASTM D2879 (vacuum distillation of organic liquids) and supports GLP-compliant documentation when paired with validated pressure transducers and data loggers. While not intrinsically safe, its construction meets IP20 ingress protection and CE marking requirements per Directive 2014/35/EU (LVD) and 2014/30/EU (EMC).

Software & Data Management

The MP 301 Z operates as a standalone analog device with no embedded firmware or digital interface. However, its consistent pressure profile and repeatable flow characteristics make it fully compatible with third-party vacuum monitoring systems—including analog 0–10 V or 4–20 mA pressure transmitters (e.g., MKS Baratron, Pfeiffer TPG300 series) and LabVIEW-, Python-, or MATLAB-driven acquisition platforms. When deployed in regulated environments (e.g., pharmaceutical QC labs), users may implement audit-trail-capable data logging per FDA 21 CFR Part 11 requirements using external validated controllers. No proprietary software or vendor-specific drivers are required.

Applications

• Vacuum-assisted filtration (e.g., Büchner funnel, HPLC sample prep, membrane filtration)
• Rotary evaporation and short-path distillation under controlled sub-atmospheric conditions
• Drying of heat-sensitive compounds (lyophilization pre-vacuum stage, desiccator evacuation)
• Evacuation of reaction vessels prior to inert-gas purging or catalytic hydrogenation
• Support vacuum for gas chromatography (GC) carrier gas supply lines and purge-and-trap systems
• Operation of vacuum ovens, freeze dryers, and electron microscopy specimen chambers where hydrocarbon-free vacuum is mandatory

FAQ

Is the MP 301 Z suitable for pumping acidic or halogenated vapors?
No. The pump’s diaphragm and valve materials are not chemically resistant to strong acids, oxidizers, or halogenated solvents. Use only with neutral, non-reactive gases and condensable vapors within specified temperature limits.
What is the recommended service interval for routine maintenance?
Under normal laboratory usage (≤8 h/day, ambient temperature ≤30°C), inspect diaphragms and valves annually; replace every 2–3 years or after 10,000 operating hours—whichever occurs first.
Can this pump be mounted vertically or in confined enclosures?
Yes, provided minimum clearance of 50 mm around all sides is maintained for airflow and heat dissipation. Avoid direct contact with insulation or sealed cabinets lacking passive ventilation.
Does the MP 301 Z include a built-in vacuum gauge?
No. A separate calibrated vacuum gauge must be installed downstream for accurate process monitoring and validation.
How does ambient temperature affect ultimate vacuum performance?
At 35°C ambient, ultimate pressure degrades by approximately 1–2 mbar due to reduced diaphragm elasticity and increased vapor saturation—operation above 30°C requires active cooling or duty-cycle adjustment.