Nitrogen Purifier

A new approach to high-purity nitrogen
The Atlas Copco NPH 20-400 introduces a new, more cost-efficient way to produce very high-purity nitrogen: two-stage on-site generation.

Boiler & Thermic Fluid Systems

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Nitrogen Purifer

The NPH works in tandem with a nitrogen generator, allowing the generator to produce N2 with a 99.9% purity. Using a small amount of hydrogen to remove the remaining oxygen, the NPH boosts this lower purity to 99.999% and even up to 99.9999%. This two-step process requires 40% less compressed air to give you significant energy savings. This in turn can contribute to a smaller carbon footprint. Adding an NPH to an existing nitrogen gas generation system will boost your installation’s N2 production capacity, potentially even doubling it.

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Energy savings

Requires 40% less feed air than high purity N2 produced by only a generator.
This energy efficiency can help lower your carbon emissions.
Allows for a smaller compressor and N2 generator.

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Top performance

Guaranteed very high N2 purity: 99.999% and even up to 99.9999%.
Boost and even double the output of your existing N2 generation system.
Does not strain your site’s electrical system.
H2 produces no harmful byproducts, only water and heat.

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Superior reliability

Continuous supply of N2 at a guaranteed very high purity.
Designed for minimal maintenance to reduce downtime and service costs.
Can be combined with traditional gas deliveries.

Built for reliable, automated operation

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Advanced Elektronikon® Touch controller

HD color touchscreen.
Purity alerts and connectivity options

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Reactor

High-grade catalyst built into a proven aluminum extruded design with low pressure drop
N2 purity above 99.999% and even up to 99.9999%.
Continuous temperature and moisture monitoring.

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Fully automated operation

Automatic start-up and standby.
Autonomous operation (with most N2 generators) thanks to onboard instrumentation.
Feed N2 check & restore: purity monitoring and interception.
Optional outlet N2 check & restore: purity monitoring and interception with adjustable limit
Overflow protection at start-up versus an empty N2 net and during operation

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Smart and safe H2 handling

Precise H2 dosing based on feed N2 flow monitoring and purity measurements
Evacuation valve set prevents H2accumulation in the machine

	Nitrogen capacity	Nitrogen inlet purity	Nitrogen outlet purity	Hydrogen consumption	Dimensions (W x D x H)		Weight
	Nitrogen capacity	Nitrogen inlet purity	Nitrogen outlet purity	Hydrogen consumption	mm	in	kg	lbs
NPH 20	Nm³/h20	99.9%	>99.999%	0.002 Nm³ per Nm³ of N₂	775 x 840 x 2015	31 x 33 x 79	232	511
NPH 20	Scfm11.8				775 x 840 x 2015	31 x 33 x 79	232	511
NPH 40	Nm³/h40				775 x 840 x 2015	31 x 33 x 79	233	514
NPH 40	Scfm24				775 x 840 x 2015	31 x 33 x 79	233	514
NPH 60	Nm³/h60				775 x 840 x 2015	31 x 33 x 79	240	529
NPH 60	Scfm35				775 x 840 x 2015	31 x 33 x 79	240	529
NPH 80	Nm³/h80				775 x 840 x 2015	31 x 33 x 79	241	531
NPH 80	Scfm47				775 x 840 x 2015	31 x 33 x 79	241	531
NPH 100	Nm³/h100				775 x 840 x 2015	31 x 33 x 79	243	536
NPH 100	Scfm59				775 x 840 x 2015	31 x 33 x 79	243	536
NPH 120	Nm³/h120				775 x 840 x 2015	31 x 33 x 79	244	538
NPH 120	Scfm71				775 x 840 x 2015	31 x 33 x 79	244	538
NPH 140	Nm³/h140				775 x 840 x 2015	31 x 33 x 79	248	547
NPH 140	Scfm82				775 x 840 x 2015	31 x 33 x 79	248	547
NPH 160	Nm³/h160				775 x 840 x 2015	31 x 33 x 79	249	549
NPH 160	Scfm94				775 x 840 x 2015	31 x 33 x 79	249	549
NPH 200	Nm³/h200				775 x 840 x 2015	31 x 33 x 79	250	551
NPH 200	Scfm118				775 x 840 x 2015	31 x 33 x 79	250	551
NPH 250	Nm³/h250				1400 x 840 x 2015	55 x 33 x 79	362	798
NPH 250	Scfm147				1400 x 840 x 2015	55 x 33 x 79	362	798
NPH 300	Nm³/h300				1400 x 840 x 2015	55 x 33 x 79	387	853
NPH 300	Scfm177				1400 x 840 x 2015	55 x 33 x 79	387	853
NPH 350	Nm³/h350				1400 x 840 x 2015	55 x 33 x 79	388	855
NPH 350	Scfm206				1400 x 840 x 2015	55 x 33 x 79	388	855
NPH 400	Nm³/h400				1400 x 840 x 2015	55 x 33 x 79	395	871
NPH 400	Scfm235				1400 x 840 x 2015	55 x 33 x 79	395	871