Anyan AYAN-5L Membrane Nitrogen Generator with 99% Purity

Overview

The Anyan AYAN-5L Membrane Nitrogen Generator is an engineered solution for on-demand, continuous nitrogen supply in laboratory and light industrial environments. It employs hollow-fiber membrane separation technology—based on the differential permeability of atmospheric gases through selective polymeric membranes—to separate nitrogen from compressed ambient air. Oxygen, water vapor, carbon dioxide, and other trace gases exhibit higher permeation rates across the membrane matrix than nitrogen; under controlled feed pressure (0–0.6 MPa), this kinetic selectivity enables consistent production of nitrogen gas at ≥99% purity (v/v), with a guaranteed dew point of −40 °C. Unlike pressure swing adsorption (PSA) systems, the AYAN-5L operates without cyclic valves, adsorbent beds, or regeneration intervals—delivering stable output within ≤3 minutes of startup and eliminating downtime associated with valve switching or bed conditioning. Its integrated air compression system, coupled with acoustic isolation design, ensures quiet operation (<55 dB(A)) and compact footprint (500 × 330 × 710 mm), making it suitable for benchtop deployment in analytical labs, GC carrier gas applications, inert blanketing, and sample preparation workflows.

Key Features

• Imported Korean high-selectivity hollow-fiber membrane module, delivering long service life (>15,000 operating hours) and no consumable replacement requirements
• Integrated three-stage filtration system: coalescing pre-filter (removes oil aerosols and particulates >0.01 µm), activated carbon adsorber (eliminates hydrocarbons and residual oil vapors), and ultra-fine particulate filter (<0.003 mg/m³ oil carryover)
• Onboard refrigerated air dryer and desiccant-based moisture removal stage, maintaining consistent dew point performance at −40 °C to protect downstream instrumentation
• Digital nitrogen purity monitor with real-time LED display (±0.5% accuracy), calibrated against certified reference gas standards
• Self-contained oil-free scroll air compressor (rated for continuous duty), acoustically suspended to minimize mechanical vibration and airborne noise transmission
• Dual independent pressure regulation: adjustable inlet pressure control for optimal membrane flux and user-configurable outlet pressure setpoint (0–0.6 MPa range)

Sample Compatibility & Compliance

The AYAN-5L is designed for compatibility with nitrogen-dependent instrumentation including gas chromatographs (GC), liquid chromatography–mass spectrometers (LC-MS) requiring nitrogen curtain or nebulizer gas, gloveboxes, and thermal analyzers. Its output meets ISO 8573-1:2010 Class 2:2:2 specifications for compressed air quality (solid particles, water, and oil content), ensuring safe integration into sensitive analytical platforms. While not certified to FDA 21 CFR Part 11 or EU Annex 11 out-of-the-box, the unit supports GLP/GMP-aligned operational documentation when paired with external audit-ready logging systems. It complies with IEC 61000-6-3 (EMC emissions) and IEC 61000-6-2 (immunity) standards, and its electrical architecture conforms to GB 4793.1–2007 (equivalent to IEC 61010-1) for laboratory equipment safety.

Software & Data Management

The AYAN-5L operates as a standalone hardware system with embedded microcontroller logic—no proprietary software installation or driver dependencies are required. All operational parameters (output pressure, purity reading, runtime hours, and fault codes) are accessible via front-panel LCD interface. For laboratories requiring electronic recordkeeping, analog 4–20 mA outputs are provided for purity and pressure signals, enabling direct integration with SCADA systems, LIMS, or programmable logic controllers (PLCs). Optional RS-485 Modbus RTU interface (available upon request) supports remote monitoring, alarm threshold configuration, and event-log export compatible with CSV-formatted data acquisition platforms.

Applications

• Carrier and makeup gas supply for capillary GC and GC-MS systems
• Inert atmosphere generation for solvent evaporation, lyophilization, and reaction vessel purging
• Blanketing gas for storage of oxygen-sensitive standards, reference materials, and calibration solutions
• Nitrogen purge in FTIR sample compartments and Raman spectroscopy enclosures
• Support gas for elemental analyzers (e.g., CHNS/O instruments) and thermal gravimetric analysis (TGA)
• Lab-scale food packaging testing and pharmaceutical stability chamber conditioning

FAQ

What is the typical lifetime of the membrane module?
The Korean-sourced hollow-fiber membrane is rated for ≥15,000 hours of continuous operation under specified inlet air quality and pressure conditions.
Does the unit require external compressed air?
No—the AYAN-5L includes a built-in oil-free scroll air compressor and requires only a standard 220 V / 50 Hz power connection.
Can output purity be verified independently?
Yes—users may validate purity using calibrated electrochemical or paramagnetic oxygen analyzers; the onboard sensor is factory-calibrated against NIST-traceable gas standards.
Is the nitrogen stream suitable for use with mass spectrometry?
For LC-MS nebulizer or drying gas applications, 99% purity is acceptable; however, for high-resolution MS requiring <1 ppm O₂, a 99.99% or higher purity variant (AYAN-5LG) is recommended.
How often does the filtration system require maintenance?
Pre-filters should be inspected every 500 operating hours and replaced every 2,000 hours; the carbon and final particulate filters are rated for 4,000-hour service life under ISO-compliant inlet air conditions.