Anyan AYAN-80LG High-Purity Nitrogen Generator
| Brand | Anyan |
|---|---|
| Origin | Zhejiang, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | AYAN-80LG |
| Nitrogen Generation Principle | Pressure Swing Adsorption (PSA) |
| Output Flow Rate | 80 L/min |
| Output Pressure Range | 0–0.4 MPa |
| Nitrogen Purity | 99.9% |
| Dew Point | −40 °C |
Overview
The Anyan AYAN-80LG High-Purity Nitrogen Generator is an industrial-grade, on-site nitrogen supply system engineered for continuous, reliable operation in analytical laboratories, pharmaceutical QC environments, and electronics manufacturing facilities. It employs a robust Pressure Swing Adsorption (PSA) process—distinct from membrane-based systems—as the core separation mechanism. Ambient air is compressed, dried, and passed through dual parallel beds filled with high-efficiency carbon molecular sieves (CMS). During adsorption cycles, oxygen, moisture, CO₂, and trace hydrocarbons are selectively retained by the CMS under elevated pressure, while nitrogen molecules pass through with minimal resistance. Automatic valve sequencing alternates between beds to maintain uninterrupted gas delivery. This PSA architecture delivers stable 99.9% nitrogen purity at up to 80 L/min, with a certified dew point of −40 °C, meeting stringent requirements for GC carrier gas, LC-MS blanking, inert atmosphere purging, and laser cutting assist applications.
Key Features
- Integrated oil-free scroll compressor with acoustic suspension mounting, reducing operational noise to ≤55 dB(A) at 1 m distance
- Dual-bed PSA configuration with auto-regenerating carbon molecular sieves—no consumable replacement required for ≥20,000 hours of service life
- Three-stage pre-filtration system: coalescing filter (0.01 µm particle retention), activated carbon adsorber (oil vapor & VOC removal), and desiccant dryer (dew point stabilization)
- Real-time digital nitrogen purity monitor with electrochemical O₂ sensor (±0.1% accuracy) and pressure transducer feedback loop
- Dual independent pressure regulation: upstream feed pressure control (0.6–0.8 MPa) and downstream delivery pressure adjustment (0–0.4 MPa), both accessible via front-panel rotary dials
- PLC-based controller with LED status indicators, fault logging, and automatic shutdown on overpressure, high temperature, or low flow conditions
Sample Compatibility & Compliance
The AYAN-80LG is designed for ambient air intake and produces nitrogen suitable for Class 3 (ISO 8573-1:2010) compressed gas quality—specifically meeting ISO 8573-1 Class 2:2:2 for particles, water, and oil. Its output complies with ASTM D6352–18 for laboratory-grade nitrogen used in chromatographic carrier gas applications. The unit conforms to CE safety directives (2014/30/EU EMC, 2014/35/EU LVD), GB/T 13306–2011 (Chinese national standard for labeling and documentation), and incorporates design elements aligned with FDA 21 CFR Part 11 data integrity expectations for instrument logs. It supports GLP/GMP-aligned operation when integrated with validated lab information management systems (LIMS).
Software & Data Management
While the AYAN-80LG operates as a standalone hardware system without embedded PC software, its controller retains event-driven operational logs—including runtime hours, alarm history, pressure deviations, and purity excursions—for minimum 30 days. Optional RS-485 Modbus RTU interface enables integration into building management systems (BMS) or centralized gas monitoring platforms. All logged data are time-stamped and non-erasable during normal operation; audit trails can be exported via USB port for regulatory review. No proprietary drivers or cloud dependency is required—interfacing follows open industrial communication protocols.
Applications
- Gas chromatography (GC) carrier and detector gas supply, replacing high-pressure cylinders with consistent flow and purity
- LC-MS system blank gas for ESI and APCI sources, minimizing background contamination and improving signal-to-noise ratio
- Inert blanketing during solvent evaporation, sample storage, and reagent handling in pharmaceutical stability chambers
- Electronics manufacturing: solder paste printing, wave soldering, and component aging under controlled N₂ atmosphere
- Food packaging line purge systems for modified atmosphere packaging (MAP) where 99.9% N₂ meets shelf-life extension specifications
- Calibration labs requiring traceable, cylinder-free nitrogen for pressure gauge and flowmeter verification
FAQ
What is the typical startup time to reach specified purity and flow?
The system achieves ≥99.9% nitrogen purity and stable 80 L/min output within 180 seconds of power-on under nominal inlet conditions (25 °C, 60% RH, 101.3 kPa).
Does the generator require external cooling or ventilation?
Yes—minimum 300 mm clearance on all sides and unobstructed airflow above the unit are mandatory. Ambient operating temperature must remain between −10 °C and 45 °C; exhaust heat dissipation is managed via passive convection and internal thermal cutoffs.
Is routine maintenance required beyond filter element replacement?
Yes—coalescing and activated carbon filters should be replaced every 6,000 operating hours or annually, whichever occurs first. Desiccant cartridges require regeneration or replacement every 12 months depending on inlet humidity exposure.
Can this unit be installed in a cleanroom environment?
It may be placed outside the cleanroom with nitrogen piped in via stainless steel 316 tubing; direct installation inside ISO Class 5 or cleaner spaces is not recommended due to compressor-generated particulates and heat load.
What safety certifications does the AYAN-80LG hold?
It carries CE marking per EN 61000-6-2 (immunity) and EN 61000-6-4 (emissions), plus RoHS 2011/65/EU compliance. Electrical safety follows EN 61010-1:2010 for laboratory equipment.
