VACUUBRAND ME 8 NT Single-Stage Diaphragm Vacuum Pump

Overview

The VACUUBRAND ME 8 NT is a single-stage, oil-free diaphragm vacuum pump engineered for continuous, contamination-free operation in demanding laboratory and light industrial environments. Based on positive displacement principle, it achieves vacuum generation through reciprocating motion of reinforced elastomeric diaphragms—eliminating lubricants, hydrocarbon vapors, and particulate carryover from the vacuum stream. Its robust architecture features an aluminum pump housing and chemically resistant polymer components in all gas-path contact zones, ensuring long-term compatibility with non-corrosive gases such as air, nitrogen, argon, and inert process atmospheres. Designed to deliver high volumetric throughput even near ultimate vacuum, the ME 8 NT maintains stable performance across variable load conditions—making it ideal for applications requiring reliable, low-maintenance vacuum generation without risk of sample or system contamination.

Key Features

• Oil-free operation ensures absolute absence of hydrocarbon backstreaming—critical for analytical instrumentation, solvent evaporation, and cleanroom-compatible processes.
• High-flexibility, fiber-reinforced dual-layer diaphragms fabricated from fluorocarbon rubber (FKM) provide exceptional resistance to fatigue and extended service life under continuous duty cycles.
• Optimized flow dynamics enable maximum suction speed of 7.3 m³/h (50 Hz) and 8.1 m³/h (60 Hz), sustaining effective evacuation rates down to 70 mbar (52 torr) absolute pressure.
• Low-vibration motor assembly and integrated acoustic damping reduce operational noise to ≤45 dBA at 50 Hz—suitable for shared lab spaces and noise-sensitive workflows.
• Sealed, maintenance-free drive mechanism eliminates routine lubrication, belt replacement, or valve servicing; only periodic diaphragm inspection is recommended per manufacturer guidelines.
• Compliance with NRTL certification for North America and ATEX Directive 2014/34/EU (Category II 3G, Group IIC, T3, internal atmosphere only) confirms suitability for use in potentially explosive environments where specified voltage and installation conditions are met.

Sample Compatibility & Compliance

The ME 8 NT is validated for use with non-aggressive, non-condensable, and non-corrosive gases only—including ambient air, dry nitrogen, helium, and argon. It is not rated for solvents, acidic or alkaline vapors, halogenated compounds, or reactive gases (e.g., Cl₂, NH₃, H₂S). All wetted materials—including diaphragms, valves, and gaskets—conform to USP Class VI biocompatibility standards and meet EU Regulation (EC) No 1935/2004 for materials intended to come into contact with foodstuffs. The pump complies with IEC 61000-6-3 (EMC emission limits) and IEC 61000-6-2 (immunity requirements), supporting integration into GLP- and ISO/IEC 17025-accredited laboratories. Electrical safety adheres to IEC 61010-1:2010 and UL 61010-1.

Software & Data Management

The ME 8 NT operates as a standalone analog device with no embedded firmware, digital interface, or data logging capability. As a Class I, fixed-speed AC motor-driven pump, it requires no software configuration or driver installation. Its plug-and-play design supports immediate deployment via standard IEC C13/C14 power cord connection. For integration into automated systems, optional external pressure sensors (e.g., VACUUBRAND VD 100 series) and programmable logic controllers may be used to monitor inlet pressure and trigger on/off control sequences. All operational parameters—including duty cycle, ambient temperature, and hose integrity—are documented in the included user manual per ISO 9001 traceability requirements.

Applications

• Rotary evaporation and fractional distillation under mild vacuum
• Gas sampling and filtration in environmental monitoring labs
• Vacuum desiccation and drying of heat-sensitive biological samples
• Support vacuum for glove boxes, vacuum ovens, and lyophilizers
• Pre-evacuation of mass spectrometry sample introduction lines
• Controlled-atmosphere packaging development and testing
• Leak testing of sealed enclosures using pressure decay methodology

FAQ

Is the ME 8 NT suitable for pumping solvent vapors or corrosive gases?
No. It is strictly intended for non-corrosive, non-condensable gases. Exposure to organic solvents, acids, bases, or reactive species will degrade FKM diaphragms and compromise seal integrity.
What is the expected service life of the diaphragm under continuous operation?
Under nominal load and ambient temperatures between 10–30 °C, the dual-layer FKM diaphragm typically exceeds 10,000 hours of runtime before scheduled replacement—subject to adherence to recommended maintenance intervals outlined in the technical manual.
Can the ME 8 NT be operated in vertical orientation?
Yes, but only in the upright position as supplied—base-down, outlet ports facing upward. Sideways or inverted mounting voids warranty and impairs thermal management and condensate drainage.
Does the pump require a dedicated exhaust line or can it vent directly into the lab?
Direct room venting is permissible when handling clean, non-hazardous gases. If exhausting process gases with potential toxicity or odor, connect the outlet to a fume hood duct or abatement system per local EHS regulations.
Is the ME 8 NT compatible with vacuum controllers or feedback-based automation systems?
It does not feature built-in analog/digital I/O. However, it can be controlled externally via relay-based switching triggered by vacuum gauges or PLCs—provided electrical isolation and proper load rating of the control circuit are maintained.