Nitrogen purifier
Ultra-high purity. Lower energy. Smarter nitrogen.
The nitrogen purifier NH 20-400 introduces a new, highly cost-efficient approach to producing ultra-high-purity nitrogen up to 99.9999% through a two-stage on-site generation process. By injecting a small, controlled amount of hydrogen, the purifier removes the final traces of oxygen and delivers exceptional purity levels.
Nitrogen Purifier NH 20 - 400
Designed as a second purification stage, the NH purifier upgrades existing nitrogen generators to meet demanding ultra-high purity requirements. Its compact design allows true plug-and-play integration.
Key features
- Ultra‑high purity:
Upgrades standard on-site nitrogen (99.9%) to 99.999% and even up to 99.9999% purity. - Two‑stage nitrogen generation:
Works in series with any PSA nitrogen generator—your existing system becomes a high-purity solution. - Up to 40% lower feed‑air demand:
Reduced compressed air requirement compared to producing high-purity nitrogen with a generator alone. - Fully automated operation:
Automatic start/stop, purity monitoring, and protection functions for reliable, hands-off performance. - Low‑maintenance industrial design:
Robust aluminum reactor, high-grade catalyst, and smart controls minimize downtime and service costs.
Have questions? Our experts are available to provide you with the information you need.
Call us at +45 4879 7811. You can also send a direct e-mail to [email protected] or request a quote:
How does the NH 20–400 work?
Two-stage on-site nitrogen generation
Stage 1 – Nitrogen generator:
Your PSA nitrogen generator produces standard nitrogen at around 99.9% purity.
Stage 2 – Nitrogen purifier:
The NH receives this nitrogen and injects a small, precisely controlled amount of hydrogen. In the reactor, hydrogen reacts with residual oxygen to form water and heat—no harmful by-products. The result is ultra-high-purity nitrogen at >99.999% and up to 99.9999%.
This aproach:
- Cuts feed-air demand by up to 40% versus generating ultra-high purity N₂ directly.
- Boosts total N₂ output, often significantly increasing or even doubling system capacity.
- Reduces energy consumption and carbon footprint thanks to lower compressor load.
- Covers small to large installations with a 20–400 Nm³/h flow range
OXYMAT designs and manufactures on-site nitrogen generation and purification systems engineered for continuous industrial operation. Our solutions combine robust construction, high process efficiency, and advanced control systems to ensure stable performance and long service life.With installations worldwide, OXYMAT supports industries that require dependable nitrogen supply and consistent gas purity, including laser cutting, electronics and semiconductor manufacturing, pharmaceuticals and biotechnology, food and beverage packaging, chemical processing, and heat treatment.
Applications overview
Click below to find out which N2 generator applications OXYMAT covers.
