Anyan AYAN-10LG 10 L/min PSA Nitrogen Generator

Overview

The Anyan AYAN-10LG is a laboratory-grade, integrated Pressure Swing Adsorption (PSA) nitrogen generator engineered for continuous, on-demand supply of high-purity nitrogen gas at up to 10 L/min. Unlike membrane-based systems, the AYAN-10LG employs dual-bed carbon molecular sieve (CMS) technology to achieve selective separation of nitrogen from compressed ambient air. Under elevated pressure, oxygen, CO₂, and water vapor are preferentially adsorbed onto the CMS surface due to their smaller kinetic diameters and higher diffusion rates, while nitrogen—being larger and less polar—passes through the bed in enriched form. During the depressurization (regeneration) phase, adsorbed gases are vented, restoring CMS capacity for the next cycle. This cyclic, fully automated process ensures stable output, long-term reliability, and compliance with ISO 8573-1:2010 Class 2:2:2 air quality standards for instrument-grade nitrogen.

Key Features

• Integrated oil-free scroll air compressor eliminates external air source dependency and reduces footprint
• Dual-tower PSA architecture with programmable PLC control enables uninterrupted nitrogen delivery via alternating adsorption/regeneration cycles
• Triple-stage filtration system: coalescing pre-filter (0.01 µm), activated carbon adsorber, and desiccant dryer—ensuring inlet air meets CMS protection requirements per ISO 8573-1
• Real-time digital display of nitrogen purity (99% or 99.9% selectable), outlet pressure (0–0.6 MPa), and system status
• Suspended anti-vibration mounting and acoustic enclosure maintain operational noise below 60 dB(A) — suitable for shared lab environments
• Adjustable pressure regulation with dual-setpoint capability supports diverse instrumentation interfaces, including LC-MS ESI/APCI sources and GC carrier gas manifolds
• No consumables beyond routine filter element replacement (recommended annually under standard lab use)

Sample Compatibility & Compliance

The AYAN-10LG delivers nitrogen meeting critical specifications for analytical instrumentation requiring consistent flow, low dew point (<−40 °C), and particulate-free output. It is validated for use with liquid chromatography–mass spectrometry (LC-MS) electrospray ionization (ESI) and atmospheric pressure chemical ionization (APCI) sources, where high-flow (5–15 L/min), medium-purity (99–99.9%) nitrogen serves as nebulizing, drying, and curtain gas. It also supports sample preparation systems—including solid-phase extraction (SPE) manifolds and nitrogen blow-down evaporators—that demand robust flow stability without ultra-high purity constraints. The unit complies with CE safety directives (2014/30/EU EMC, 2014/35/EU LVD) and supports audit-ready operation under GLP and GMP frameworks when paired with optional data logging modules. While not certified to FDA 21 CFR Part 11 out-of-the-box, its digital interface allows integration with compliant LIMS or ELN platforms for electronic record retention.

Software & Data Management

The AYAN-10LG operates via an embedded industrial PLC with non-volatile memory storing >10,000 operational logs—including cycle count, runtime hours, pressure transients, and purity deviation alerts. Optional RS-485 Modbus RTU or Ethernet TCP/IP communication enables remote monitoring and integration into centralized facility management systems. Firmware updates are performed via USB port using manufacturer-provided configuration tools. All event logs include timestamping with UTC synchronization support. For regulated environments, optional audit trail modules provide immutable records of parameter changes, user logins, and maintenance events—aligned with ALCOA+ principles (Attributable, Legible, Contemporaneous, Original, Accurate, Complete, Consistent, Enduring, Available).

Applications

• LC-MS and LC-MS/MS: Supply of drying and nebulizing gas for ESI and APCI sources (flow range: 5–12 L/min; purity: 99–99.9%)
• Gas chromatography: Backup or auxiliary nitrogen supply for detector make-up gas or purge-and-trap systems (not recommended as primary carrier gas for high-resolution GC-MS)
• Sample preparation: Nitrogen blow-down evaporation, SPE manifold purging, and inert atmosphere glove boxes
• Material testing: Controlled-atmosphere thermal analysis (TGA, DSC) and metallographic sample preparation
• Electronics manufacturing: Component cleaning and soldering atmosphere blanketing where oxygen exclusion is required but ultra-high purity is unnecessary

FAQ

What is the typical startup time to reach rated purity and flow?
The system achieves stable 99% nitrogen output within ≤3 minutes of power-on; full stabilization at 99.9% purity requires ≤5 minutes under nominal load conditions.
Can this unit be configured for 99.99% nitrogen purity?
No—the AYAN-10LG is optimized for 99% or 99.9% output. For ≥99.99% purity, consider the Anyan AYAN-10LGC series with enhanced CMS grading and extended adsorption cycles.
Is external cooling or ventilation required?
Yes—maintain ≥15 cm clearance on all sides and ensure ambient temperature remains between 10–35 °C with relative humidity <80% non-condensing to prevent condensate accumulation in the CMS beds.
How often must filters be replaced?
Pre-filters and coalescers should be replaced every 12 months or after 2,000 operating hours; desiccant cartridges require replacement every 24 months under continuous operation.
Does the unit support 24/7 unattended operation?
Yes—designed for continuous duty with automatic fault detection, pressure relief valves, and thermal cutouts compliant with IEC 61000-6-2 immunity standards.