VACUUBRAND MZ 2 NT Dual-Stage Diaphragm Vacuum Pump

Overview

The VACUUBRAND MZ 2 NT is a compact, dual-stage diaphragm vacuum pump engineered for continuous, oil-free evacuation of non-corrosive gases in laboratory and light industrial environments. Operating on the principle of positive displacement via elastomeric diaphragm oscillation, it delivers stable vacuum performance without lubricants or hydrocarbon contamination—making it ideal for applications where sample purity, operator safety, and regulatory compliance are critical. Its two-stage architecture enables both high volumetric throughput at atmospheric pressure and efficient compression down to an ultimate absolute pressure of 7 mbar, bridging the gap between roughing pumps and high-vacuum systems. Designed and manufactured in Germany, the MZ 2 NT adheres to stringent quality control standards across materials, assembly, and functional testing, ensuring long-term reliability under daily use in analytical, preparative, and process-support workflows.

Key Features

• Oil-free, contamination-free operation—eliminates risk of backstreaming hydrocarbons into sensitive vacuum chambers or sample lines
• Dual-stage configuration provides enhanced compression ratio and improved ultimate vacuum (7 mbar abs.) compared to single-stage equivalents
• Fiber-reinforced, double-layer diaphragms made from fluorocarbon rubber (FKM) deliver exceptional chemical resistance to common solvents and extended service life (>10,000 operating hours under typical load)
• Low-vibration, brushless AC motor with integrated thermal protection; rated power 0.18 kW, nominal speed 1500 min⁻¹ (50 Hz) / 1800 min⁻¹ (60 Hz)
• Acoustically optimized housing and integrated silencer reduce operational noise to ≤45 dBA at 1 m distance—suitable for shared lab spaces and quiet environments
• IP 40-rated enclosure ensures protection against solid ingress while permitting adequate ventilation for thermal management
• Pre-assembled and ready-to-use: includes inlet hose nozzle (DN 10 mm), outlet silencer with G1/4″ thread, and full documentation

Sample Compatibility & Compliance

The MZ 2 NT is specifically designed for non-aggressive, non-corrosive gases—including air, nitrogen, argon, helium, and dried compressed air. All wetted parts (diaphragms, valves, pump head housing) are constructed from anodized aluminum and chemically resistant engineering plastics (e.g., PTFE-coated valve plates, FKM elastomers), ensuring compatibility with common organic vapors and low-concentration aqueous streams. It is not suitable for halogenated solvents, strong acids/bases, or condensable vapors without cold trap integration. Regulatory compliance includes NRTL certification for use in the United States and Canada (UL/cUL 61010-1), and ATEX certification (II 3G IIC T3 X) for Zone 2 hazardous areas—valid for 230 V models only. The pump meets essential requirements of the EU Machinery Directive 2006/42/EC and Electromagnetic Compatibility Directive 2014/30/EU.

Software & Data Management

As a standalone mechanical vacuum source, the MZ 2 NT operates without embedded firmware or digital interfaces. It requires no software installation, driver configuration, or network connectivity—reducing cybersecurity exposure and simplifying qualification in regulated environments (e.g., GLP, ISO/IEC 17025). For integration into automated systems, optional analog pressure feedback (0–10 V or 4–20 mA) can be added via external vacuum gauges and controllers. Its robust, maintenance-free drive train and predictable performance characteristics support straightforward IQ/OQ/PQ validation protocols, including documented test procedures for flow rate consistency, ultimate vacuum attainment, and acoustic emission profiling per ISO 2151.

Applications

• Roughing pump for rotary vane or turbomolecular systems in mass spectrometry, electron microscopy, and thin-film deposition setups
• Vacuum filtration and solvent removal in chemistry and pharmaceutical R&D labs
• Evaporative concentration (e.g., centrifugal concentrators, parallel evaporators) requiring clean, dry vacuum
• Gas sampling and calibration systems where zero-oil background is mandatory
• Enclosure purging and inert gas blanketing in gloveboxes and anaerobic workstations
• Leak testing of sealed components using pressure decay or vacuum hold methods

FAQ

Can the MZ 2 NT handle corrosive or condensable vapors?
No. It is strictly intended for non-corrosive, non-condensable gases. Exposure to aggressive chemicals (e.g., HCl, Cl₂, NH₃) or vapors that liquefy at ambient temperature (e.g., acetone, ethanol) will degrade diaphragm integrity and valve function.
Is the pump compatible with vacuum controllers or programmable logic controllers (PLCs)?
Yes—via external analog pressure transducers and relay-based on/off control circuits. The pump itself has no built-in communication interface.
What is the recommended maintenance schedule?
The MZ 2 NT is designed for maintenance-free operation over its service life. Diaphragm replacement is typically required only after >10,000 hours of continuous use under specified conditions; no routine oil changes, bearing lubrication, or valve cleaning is necessary.
Does it meet FDA 21 CFR Part 11 requirements?
While the pump itself does not generate electronic records, its deterministic mechanical behavior and absence of configurable software make it inherently compliant as a “non-electronic record” device within validated systems—provided associated data acquisition hardware satisfies Part 11 controls.
Can it be operated continuously at full load?
Yes—its thermal design and motor protection circuitry permit uninterrupted duty cycle operation within the specified ambient temperature range (10–40 °C) and at altitudes up to 2000 m above sea level.