VACUUBRAND MV 10C EX VARIO ATEX-Certified Chemical-Resistant Diaphragm Vacuum Pump

Overview

The VACUUBRAND MV 10C EX VARIO is an intrinsically safe, ATEX-certified, oil-free diaphragm vacuum pump engineered for continuous, reliable operation in potentially explosive atmospheres (Zone 1 and Zone 2). Designed in accordance with Directive 2014/34/EU (ATEX), it integrates explosion protection both within the gas-handling chamber—where process vapors contact wetted components—and across external housing surfaces. Its core architecture employs a multi-stage, eight-diaphragm configuration operating in four compression stages, enabling high volumetric efficiency while maintaining ultimate vacuum performance down to 2 mbar (1.5 torr) absolute without gas ballast, and 10 mbar (7.5 torr) when operated with inert gas purging. The pump’s variable-speed drive—controlled via industry-standard 4–20 mA analog signal—dynamically adjusts motor rotation (0–1500 rpm) to match real-time process demand, eliminating unnecessary energy consumption and reducing mechanical wear. This principle underpins its extended maintenance intervals, low acoustic emission (52 dBA at 50 Hz), and precise vacuum stability during sensitive applications such as rotary evaporation, vacuum drying, and solvent recovery in chemical synthesis labs.

Key Features

• ATEX-certified for use in hazardous areas: II 2G IIC T3 X for pumped gas zone; II 2G/II 3G IIB T4 X for surrounding environment (with/without inert gas purging); motor certified to II 2G Ex d IIB T4 Gb
• Chemical-resistant wetted materials: PTFE-coated diaphragms, EPDM elastomers, and stainless-steel valve plates ensure compatibility with aggressive solvents, acids, and bases
• Antistatic construction: All internal wetted parts and housing elements comply with EN 60079-32-1 for electrostatic discharge safety in flammable atmospheres
• VARIO® speed control: Real-time, lag-free vacuum regulation via 4–20 mA interface (4 mA = 0 rpm, 20 mA = 1500 rpm); eliminates overshoot and improves process repeatability
• Integrated gas ballast port: Enables connection to inert gas supply (e.g., N₂ or Ar) for vapor dilution and condensable load management—critical for solvent-laden processes
• Robust mechanical design: IP 54-rated enclosure; corrosion-resistant aluminum alloy housing; vibration-damped mounting base for stable benchtop or integrated system installation

Sample Compatibility & Compliance

The MV 10C EX VARIO is validated for handling chemically aggressive, condensable, and non-reactive vapors encountered in pharmaceutical R&D, fine chemical manufacturing, and academic synthetic laboratories. Wetted materials meet USP Class VI and FDA-compliant polymer standards where applicable. Its ATEX certification aligns with ISO 8573-1:2010 (compressed air purity) for Class 0 oil-free output—ensuring zero hydrocarbon contamination in vacuum lines. The pump satisfies key regulatory expectations for GLP and GMP environments, including traceable operational parameters (via optional CVC 3000 controller with audit trail functionality compliant with FDA 21 CFR Part 11), documented maintenance schedules, and full compliance with IEC 60079 series standards for equipment used in explosive atmospheres. It is not intended for pumping oxygen-enriched, acetylene, or peroxide-forming substances without prior risk assessment and engineering controls.

Software & Data Management

While the MV 10C EX VARIO operates as a standalone analog-controlled unit, it is fully compatible with VACUUBRAND’s CVC 3000 vacuum controller—an optional digital interface enabling closed-loop pressure setpoint regulation, programmable ramp profiles, data logging (timestamped vacuum vs. time), and remote monitoring via RS485 or Ethernet. When integrated with the CVC 3000, the system supports electronic signatures, user access levels, and exportable CSV reports—facilitating compliance with ISO/IEC 17025, ASTM E2656, and internal QA/QC documentation requirements. Optional I/O modules allow integration into PLC-based lab automation systems, while ATEX-rated vacuum sensors (e.g., VACUU·SELECT® EX) provide redundant, intrinsically safe feedback for mission-critical processes.

Applications

• Rotary evaporation under controlled vacuum in explosion-hazardous fume hoods or ventilated enclosures
• Vacuum drying of thermolabile compounds in ATEX-classified ovens or gloveboxes
• Distillation and fractional crystallization of flammable organic solvents (e.g., ether, acetone, hexane)
• Evacuation of reaction vessels during catalytic hydrogenation or Grignard synthesis
• Supporting vacuum filtration in pilot-scale API purification workflows
• Integration into automated parallel synthesis platforms requiring intrinsically safe vacuum sources

FAQ

Is the MV 10C EX VARIO suitable for continuous duty in Zone 1 classified areas?
Yes—it carries II 2G IIC T3 X certification for the pump chamber and II 2G IIB T4 X for the external housing when installed with appropriate inert gas purging per manufacturer guidelines.
Can it handle water vapor or high-boiling-point solvents without degradation?
Yes, provided the optional gas ballast is engaged and inert purge gas (e.g., nitrogen) is supplied; prolonged exposure to >40 °C saturated vapors requires thermal derating and periodic diaphragm inspection.
What electrical interface options are available beyond the standard 4–20 mA analog input?
Digital communication (RS485 Modbus RTU) is supported exclusively through integration with the CVC 3000 controller—not natively on the pump drive.
Does the pump include built-in overtemperature or overload protection?
Yes—the motor incorporates thermal cut-out and electronic current limiting per IEC 60034-11; status signals can be monitored via auxiliary contacts on the optional I/O module.
Are replacement diaphragms and service kits available with full ATEX revalidation documentation?
Yes—VACUUBRAND supplies certified spare parts with material traceability, calibration certificates, and updated EC-type examination certificates upon request for regulated facilities.