Membrane-type Generators
Optimal choice for oxygen-free seal gas, explosion-proof purge gas, and analytical carrier gas
This equipment produces high-purity nitrogen (max. 99.5%) from ambient air easily and economically. It is the optimal alternative to using nitrogen cylinders. Compressed air flows through a bundle of polymer hollow fibers, and the gas species with higher transmission rates (oxygen, hydrogen, water and CO2) selectively permeate through the semipermeable fiber wall, resulting in a concentration of slow-permeating nitrogen.
Membrane-type Generators (Non-integrated Compressor)
[ Features ]
- All-automatic operation for easy use
- On-site economic production of nitrogen without using nitrogen cylinders
- Compact design and small footprint
- As compared to PSA nitrogen generators, this equipment is more suited for applications with nitrogen flow demand of less than 10 Nm3/h
[ Specifications and Applications ]
- Filling gas for hollow injection molding
- Alternative convenient tool to gas cylinders (no cylinder replacement)
- Carrier gas for analytic/scientific instruments
- Purge gas for laboratory and research uses
- Gas supply for drying slide glasses
- Humidity control and oxidation prevention for stored reagents and slide glasses (storage cabinet separately available)
- Non-oxidizing seal gas and filling gas for pharmaceutical/food packages
- Solvent carrier gas
- Nitrogen source for explosion-proof seal gas and explosion-proof/oxygen deficiency areas
KPN Specification
| Type | KPN-10M | KPN-35M | KPN-70M | KPN-100M | |
|---|---|---|---|---|---|
| Purity（％） and Flow rate（NL/min） *1 |
99.5% | 8.6 | 26.6 | 53.2 | 79.8 |
| 99.0% | 12.0 | 36.3 | 72.6 | 108.9 | |
| 98.0% | 16.0 | 46.0 | 92.0 | 138.0 | |
| 97.0% | 21.3 | 58.2 | 116.4 | 174.6 | |
| Size (W × D × H; mm) *Separately installed compressor excluded |
250 ×350 ×980 | ||||
*1Flow rate represents a value at intake converted to atmospheric pressure assuming source pressure: 0.7 MPa/25℃, and dew point ≦ 10° (under pressure)
Yearly running cost (0.75 kW) of KPN-10M (12NL/min), assuming usage of 8 hr/day, 20 days/month
[ Nitrogen cylinder ]
12NL/min × 60 min × 8 h ×20 days × 12 months = 1,382,000 NL (equivalent to 200 cylinders)
Assuming the cost of using nitrogen cylinders to be ￥0.35/NL, the total cost becomes ￥480,000 (1,382,000 NL × ￥0.35)
[ Nitrogen generator ]
Assuming the cost of electricity to be ￥22/kWh, yearly expense becomes ￥30,000
(1.5 kW × ￥22 × 8 h × 0.5 × 20 days × 12 months)
Yearly maintenance cost: ￥100,000
Total ￥130,000 (￥30,000 + ￥100,000)
Yearly net savings: ￥0.35 million (￥0.48 million - ￥0.13 million)
Decrease of 73% in cost
