Laboratory Membrane Nitrogen Generator
The AV-MNG-Series is a compact membrane nitrogen generator that produces continuous high-purity nitrogen directly from compressed air — no cylinders,.
The AV-MNG-Series is a compact membrane nitrogen generator that produces continuous high-purity nitrogen directly from compressed air — no cylinders, no chemical consumables.
Air is compressed and filtered inside the unit, then fed into a polymeric hollow-fiber membrane module. Because each gas has a different solubility and diffusion coefficient in the membrane, gases permeate at different rates: oxygen, CO₂ and water vapor pass through the fiber walls quickly and are vented, while nitrogen is retained and delivered as the product gas.
Compared with other nitrogen generation technologies, the membrane system offers a simpler structure, smaller footprint, no switching valves, less maintenance, faster gas availability and easy capacity expansion. With a built-in compressor and a footprint of just 350 × 550 mm, the AV-MNG-Series is the plug-and-play nitrogen supply for modern laboratories.

Key Advantages
- No Consumables Membrane separation has no switching valves and no adsorbent to replace — long service life.
- Compact Footprint 350 × 550 × 720 mm tower fits beside any lab bench or instrument.
- Built-in Compressor No external air supply needed — connect power and start generating.
- Whisper-Quiet Operation Suspended, sound-insulated compressor mounting keeps lab noise low.
- Fast Gas Availability Membrane separation produces nitrogen within minutes of startup.
- 3-Stage Precision Filtration Particle residual below 0.01–0.003 mg/m³ ensures continuous, clean gas flow.
- Built-in Water Separator Removes moisture upstream, protecting the membrane and extending its life.
- Dual Adjustable Pressure0–0.6 MPa output with dual pressure regulation — simple to operate.
- Easy Expansion Modular membrane design makes future flow upgrades simple.
Product Features
| Feature | Benefit |
|---|---|
| Hollow-fiber membrane separation | Purity 95–99%, stable continuous output |
| Four standard flow rates: 1 / 2 / 5 / 10 L/min or other customized rates | Match the model to your instrument demand |
| Built-in suspended & sound-insulated compressor | Plug-and-play, quiet lab operation |
| Integrated water separator | Protects the membrane module, longer life |
| 3-stage precision filtration (< 0.01–0.003 mg/m³) | Clean gas, uninterrupted production |
| Dual adjustable pressure system | 0–0.6 MPa, easy operation |
| No switching valves, no adsorbent | Minimal maintenance, no consumables |
Technical Specifications
- Custom flow rates and purity levels available on request — contact sales for tailored models.
| Parameter | AV-MNG-1L | AV-MNG-2L | AV-MNG-5L AV-MNG-5L | AV-MNG-10L AV-MNG-10L |
|---|---|---|---|---|
| N₂ flow rate | 1 L/min | 2 L/min | 5 L/min | 10 L/min |
| Purity | 95 – 99% | 95 – 99% | 95 – 99% | 95 – 99% |
| Output pressure | 0 – 0.6 MPa | 0 – 0.6 MPa | 0 – 0.6 MPa | 0 – 0.6 MPa |
| Total power | 450 W | 500 W | 1000 W | 1600 W |
| Power supply | 220V 50Hz — voltage customizable (110V / 220V / 230V, 50/60Hz) | |||
| Filtration | 3-stage precision filtration | |||
| Dimensions | 350 × 550 × 720 mm (please confirm with sales for strict size requirements) | |||
System Structure
- AV-MNG-Series Membrane Nitrogen Generator
- Figure — Hollow-fiber membrane nitrogen generation process flow
- Stage 1 · Air Compression & Pretreatment
- Ambient air is drawn in and compressed by the built-in suspended & sound-insulated compressor. A water separator removes moisture, and a 3-stage precision filter (particle residual < 0.01–0.003 mg/m³) protects the membrane from oil mist and dust.
- Stage 2 · Hollow-Fiber Membrane Separation (Core)
- Clean compressed air enters the polymeric hollow-fiber membrane module. Oxygen, CO₂ and water vapor permeate the fiber walls rapidly and are vented to atmosphere, while nitrogen — with its lower permeation rate — travels through the fiber bores and is collected as product gas.
- Stage 3 · Nitrogen Delivery & Control
- The dual pressure regulation system stabilizes and adjusts output pressure from 0 to 0.6 MPa, delivering continuous nitrogen at 95–99% purity to your instrument or process.


Applications
- Laboratory analytical instruments — continuous N₂ supply for lab equipment
- Inert atmosphere protection — chemistry and sample handling
- Food packaging & storage — oxygen-free environments
- Electronics — component protection
- Laser cutting — assist gas and small-scale purging
- Research & teaching laboratories — reliable everyday nitrogen


