VACUUBRAND MZ 2C NT + AK + EK Chemical Vacuum System – Dual-Stage Oil-Free Diaphragm Pump

Overview

The VACUUBRAND MZ 2C NT + AK + EK is a fully integrated, chemically resistant oil-free vacuum system engineered for demanding laboratory applications requiring reliable, low-maintenance, and environmentally responsible vacuum generation. Based on VACUUBRAND’s proven dual-stage diaphragm pump architecture, the MZ 2C NT delivers high pumping efficiency and exceptional ultimate vacuum performance—down to 7 mbar (5 torr) absolute—without the use of lubricating oils or hydrocarbon vapors. Its design adheres to fundamental principles of dry displacement vacuum technology: two synchronized diaphragm stages operate in series to achieve progressive compression and effective vapor handling. This configuration ensures stable vacuum levels during solvent-laden processes such as rotary evaporation, vacuum concentration, freeze-drying, and inert gas purging—common workflows in synthetic chemistry, analytical sample preparation, and pharmaceutical R&D laboratories.

Key Features

• Dual-stage diaphragm pump head with chemically inert PTFE-coated components and EPDM elastomers—engineered for broad resistance to organic solvents, acids, and bases.
• Integrated inlet trap (AK): borosilicate glass collection bottle with protective polymer sleeve, rated for up to 0.5 L capacity; prevents liquid carryover and particulate ingress into the pump head.
• High-efficiency exhaust condenser (EK): compact, air-cooled unit with large surface-area condensing coil; achieves >95% solvent recovery under typical rotary evaporation conditions (e.g., ethyl acetate, dichloromethane, methanol), minimizing emissions and supporting solvent reuse protocols.
• Gas ballast valve (integrated): enables continuous operation under high-vapor-load conditions while maintaining stable ultimate vacuum—critical when processing volatile or condensable vapors.
• Low-noise, low-vibration operation: acoustic emission ≤45 dBA at 1 m distance (50 Hz); mechanical stability optimized via precision-balanced motor and vibration-damping feet—suitable for shared lab environments and sensitive instrumentation setups.
• Robust electrical certification: NRTL-listed for safety compliance in North America; ATEX-certified for use in potentially explosive atmospheres (Zone 2, Group IIC, T3 temperature class) when operated at 230 V AC.

Sample Compatibility & Compliance

The MZ 2C NT + AK + EK is designed for compatibility with standard laboratory vacuum interfaces—including rotary evaporators (e.g., Buchi, IKA, Heidolph), vacuum concentrators (e.g., Thermo Fisher Savant), and desiccators. Its DN 10 mm inlet/outlet ports accommodate common silicone or Viton tubing (ID 6–8 mm). The system meets ISO 8573-1:2010 Class 0 requirements for oil-free compressed air/vacuum, ensuring contamination-free operation in GLP/GMP-regulated workflows. While not intrinsically compliant with FDA 21 CFR Part 11 out-of-the-box, its analog control interface supports integration into validated vacuum control systems with external data logging and audit trail capabilities. All materials comply with EU RoHS Directive 2011/65/EU and REACH Annex XVII restrictions.

Software & Data Management

This model operates as a standalone analog vacuum system without embedded digital controls or firmware. It features no touchscreen, USB port, or Ethernet interface—reflecting VACUUBRAND’s engineering philosophy prioritizing reliability, serviceability, and electromagnetic compatibility over digital complexity. For laboratories requiring traceable vacuum records, the MZ 2C NT + AK + EK is compatible with third-party pressure transducers (e.g., MKS Baratron series) and programmable logic controllers (PLCs) that support 4–20 mA or 0–10 V analog inputs. Integration with LabArchives or electronic lab notebooks (ELNs) is achievable via OPC UA or Modbus RTU gateways when paired with certified industrial I/O modules.

Applications

• Routine solvent removal via rotary evaporation under controlled vacuum (20–100 mbar range), with automatic vapor management via EK condenser.
• Vacuum-assisted filtration of corrosive or temperature-sensitive samples, including acidic digestates and enzymatic reaction mixtures.
• Preparation of air- and moisture-sensitive compounds under inert gas/vacuum cycling protocols.
• Supporting lyophilization pre-freeze and primary drying stages where moderate vacuum (1–50 mbar) and chemical resistance are essential.
• Environmental monitoring labs performing EPA Method 502.2 or 8021B extractions requiring non-contaminating vacuum sources for purge-and-trap systems.

FAQ

Is the MZ 2C NT + AK + EK suitable for continuous 24/7 operation?
Yes—when operated within ambient temperature limits (10–40 °C) and with adequate ventilation, the pump is rated for continuous duty per IEC 60034-1 standards.
Can the EK condenser be used with high-boiling-point solvents like DMSO or DMF?
The EK is optimized for solvents with boiling points ≤150 °C; for higher-boiling solvents, active cooling (e.g., chilled water jacket) or secondary cold traps are recommended.
Does the AK inlet trap require periodic maintenance?
Yes—the glass vessel should be inspected before each use for cracks or residue buildup; cleaning with appropriate solvents and visual verification of O-ring integrity is advised after every 50 hours of operation.
What is the expected service interval for diaphragms and valves?
Under typical chemical lab usage (≤8 h/day, moderate solvent load), VACUUBRAND recommends inspection every 1,000 operating hours and replacement of diaphragms and check valves every 3,000–5,000 hours, per the Maintenance Manual (Doc. No. MZ2C-MA-EN-2023).