The N2GEN-FLEX series generators are designed to produce nitrogen on demand using Pressure Swing Adsorption (PSA) technology. These skid-mounted systems include multiple sieve beds with manifolds, a control cabinet, and depending on the model, a nitrogen tank mounted on the skid. The system is designed to reduce unnecessary air consumption during low demand by entering standby mode, and it can automatically discharge low-purity tank gas when purity does not meet the required threshold.
Who this article is for
This content is intended for installers, equipment operators, maintenance personnel, and supervisory staff responsible for the installation, operation, and upkeep of the system.
How the system works
N2GEN-FLEX generators use carbon molecular sieve (CMS) and alternating adsorption beds to separate nitrogen from compressed air. Clean, dry compressed air enters the system, and the generator produces nitrogen for the connected process or storage tank based on the programmed operating logic. Depending on system settings, the generator can enter standby based on tank pressure or flow demand.
Platform highlights
- Compact skid-mounted industrial PSA design
- Designed to pass through a standard 36-inch wide doorway
- Scalable FLEX model family for a wide range of application demands
- Included 3-stage inlet filtration
- Standard annual filter replacement kit: FRP-020 (covers the 6-month and 12-month element replacements
Typical system features
- PLC with touchscreen HMI interface
- Multiple PSA adsorption beds with manifolds
- Status screen with nitrogen pressure, purity, and flow rate
- Maintenance screen with total run hours, time to next maintenance, and filter usage
- Alarm history and alarm reset functions
- Historical trend and data logging screens
- Automatic standby mode during low nitrogen demand
- Low-purity discharge logic to protect application gas quality
- Nitrogen tank mounted on the skid on applicable models
General specifications
| Specification | Value |
|---|---|
| Model family | N2GEN-FLEX-4TS, 6TS, 8TS, 10S, 12S, and 14S |
| Technology | Skid-mounted PSA (pressure swing adsorption) |
| Nitrogen purity | 95% to 99.999% |
| Nitrogen flow capacity | Approximately 125 to over 2,000 SCFH, depending on model and target purity |
| Dimensions (L × W × H) | 68 × 30 × 70 inches |
| Electrical input | 110-240 VAC, 50/60 Hz, single phase, 2.1A max |
| Ambient temperature | 40°F to 90°F (performance derating applies above 90°F) |
| Inlet air quality | ISO 8573-1, Class 1.4.1 |
| Included inlet filtration | 3-stage (5 micron, 0.01 micron, activated carbon) |
| Filter replacement kit | FRP-020 annual kit (includes the 6-month and 12-month replacements) |
Before you begin
Before operating the generator, review the site requirements, installation guidance, startup procedures, safety information, and maintenance requirements for your specific system. The unit should be installed by trained personnel in a properly ventilated area. The installation site should be no more than 5° off level and should provide at least 3 feet of clearance on all sides for maintenance access.
Preventive maintenance and replacement parts
N2GEN-FLEX systems use a standard filter kit and standard preventive maintenance parts schedule by model family. For standard filter kits and routine preventive maintenance parts requests, serial number is not required. Provide the model and the maintenance year or cycle needed when requesting parts.
The preventive maintenance schedule is organized by year, and the cycle repeats after Year 5.
Related articles
- N2GEN-FLEX Series Site and Utility Requirements
- N2GEN-FLEX Series Receiving, Unpacking, and Storage
- N2GEN-FLEX Series Installation Guidelines
- N2GEN-FLEX Series Initial Startup and Normal Startup
- N2GEN-FLEX Series Controls and Touchscreen Navigation
- N2GEN-FLEX Series Preventive Maintenance and Replacement Parts
- N2GEN-FLEX Series Alarms, Trends, and Common Troubleshooting
- N2GEN-FLEX Series Safety Guidelines
Documentation
For full operating, installation, and maintenance guidance, download the documents below.