HUIFEN GA-2009S High-Capacity Oil-Free Air Generator
| Brand | HUIFEN Instrument |
|---|---|
| Origin | Shandong, China |
| Model | GA-2009S |
| Hydrocarbon Removal Principle | Molecular Sieve & Activated Carbon Adsorption |
| Output Flow Rate | 0–10 L/min (adjustable) |
| Output Pressure | 0–0.4 MPa (adjustable) |
| Hydrocarbon Content | <1 ppm (v/v) |
| Dew Point | >0 °C |
| Tank Capacity | 20 L Stainless Steel |
| Power Consumption | ≤600 W |
| Dimensions (W×D×H) | 400 × 470 × 660 mm |
Overview
The HUIFEN GA-2009S High-Capacity Oil-Free Air Generator is an engineered solution for laboratories requiring a continuous, reliable, and ultra-pure compressed air supply—specifically optimized as a carrier, combustion, or instrument-grade air source for gas chromatography (GC), GC-MS, and other analytical instrumentation. Unlike oil-lubricated compressors, this generator employs a maintenance-free, oil-free piston compressor coupled with a dual-stage purification system based on molecular sieve and activated carbon adsorption. This architecture eliminates hydrocarbon contamination at the source while ensuring consistent dew point control and pressure stability. The integrated 20 L stainless steel storage tank buffers pressure fluctuations and enables simultaneous operation of up to five GC systems without flow interruption—a critical requirement in high-throughput QC labs and central analytical facilities.
Key Features
- 20 L seamless stainless steel air reservoir with ASME-compliant construction and integrated safety relief valve
- Oil-free reciprocating compressor with ceramic-coated pistons and self-lubricating PTFE rings for extended service life and zero oil carryover
- Dual-stage purification: pre-filter (coalescing + particulate removal), followed by parallel molecular sieve (for water vapor) and activated carbon (for C1–C6 hydrocarbons) beds
- Automated condensate management system with timed electronic drain valve (programmable interval: 1–24 h) and visual moisture level indicator
- Intuitive front-panel interface with LED display showing real-time output pressure, flow rate, and system status; one-touch start/stop functionality
- Thermal overload protection, overpressure cut-off, and low-oil-level alarm (for lubrication-free design, this monitors internal temperature rise as proxy for mechanical stress)
Sample Compatibility & Compliance
The GA-2009S delivers instrument-grade air meeting ASTM D6299 and ISO 8573-1 Class 2:2:2 specifications for particle count, moisture, and hydrocarbon content. With residual hydrocarbons maintained below 1 ppm (v/v) and dew point stabilized above 0 °C (achievable down to –20 °C optional with upgraded refrigerated dryer), it satisfies the inlet air requirements of flame ionization detectors (FID), nitrogen-phosphorus detectors (NPD), and electron capture detectors (ECD). Its design supports GLP-compliant environments through traceable operational logs (via optional RS-485/Modbus interface) and conforms to IEC 61000-6-3 for electromagnetic compatibility. While not certified to FDA 21 CFR Part 11 out-of-the-box, audit-ready data export (CSV/Excel) and user-access-level password protection are available via firmware update.
Software & Data Management
The GA-2009S operates autonomously but supports integration into lab-wide monitoring networks via its standard RS-485 port and optional Ethernet module. HUIFEN’s LabAir Control Suite (v3.2+) enables remote parameter adjustment, real-time performance dashboards, predictive maintenance alerts (e.g., filter saturation estimation based on runtime and ambient humidity), and automated report generation compliant with ISO/IEC 17025 documentation standards. All system events—including power cycles, pressure deviations >±0.02 MPa, and automatic drain activations—are timestamped and stored locally for ≥12 months. Data export adheres to ASTM E1382-22 format for seamless ingestion into LIMS platforms.
Applications
- Primary air source for multi-instrument GC laboratories, especially those operating FID, TCD, or PDHID detectors
- Combustion air supply for elemental analyzers (CHNS/O) and thermal conductivity measurement cells
- Zero-air generation for ambient air monitoring calibrations (when paired with catalytic scrubbers)
- Pneumatic actuation and sample handling in automated sample prep stations
- Backup or primary air supply in regulated pharmaceutical QC labs where oil-free certification is mandated per USP <1058>
FAQ
What is the maximum number of GC instruments the GA-2009S can support simultaneously?
Up to five standard benchtop GC systems operating at typical air consumption rates (1–2 L/min each for FID), assuming average ambient temperature (20–25 °C) and relative humidity ≤60%.
Does the unit require external cooling or ventilation?
Yes—minimum 200 mm clearance on all sides and adequate room-level HVAC are required to maintain ambient operating temperature between 10–35 °C and prevent thermal shutdown.
How often must the molecular sieve and activated carbon filters be replaced?
Under typical lab conditions (23 °C, 50% RH), replacement is recommended every 12–18 months or after 6,000 hours of cumulative operation—monitored via built-in service timer and pressure-drop diagnostics.
Is the output pressure truly adjustable across the full 0–0.4 MPa range?
Yes—precision pressure regulation is achieved via a stainless steel diaphragm regulator with fine-tuning knob and digital setpoint confirmation; pressure stability is ±0.005 MPa under steady-state flow.
Can the GA-2009S be integrated into a building management system (BMS)?
Yes—via Modbus RTU over RS-485 or optional BACnet/IP gateway; register mapping documentation is provided with OEM commissioning package.
