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NTF-230
Operation Manual
10 Innovation Drive
York, Pennsylvania 17402 USA
Phone: 717-840-0678
Toll Free: 800-468-2321
Web-site: www.rtitech.com
Manual P/N: 035 81607 00
RTI Technologies, Inc.
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TABLE OF CONTENTS
Pictograms 2
Health, Safety and Environmental Aspects......................2
Description of the NTF-230 Membrane 3
Process Parameters 4
Unpack & Check Equipment 5
Safety Precautions 5
Operation 5
Automatic Tire Filling
Cycle Counter Access
OPS and N2P Settings and Adjustment 7
Testing Nitrogen Purity 8
Maintenance 9
Trouble Shooting Guide 10
6
7
Flow and Electric Diagram 11
Parts Identification and Maintenance Parts 12
Nitrogen is generated by the NTF-230 and retained in the storage
tank. Nitrogen generation stops when the user manually turns off
the air flow to the NTF-230.
The pressure in the NTF-230 storage tank may drop after extended
non-use (over night for example). This is normal, and is similar to
air compressors that will periodically cycle on to replenish pressure
lost in the air storage tank and attached delivery system.
Permeation through service hoses, fill nozzles, valves and other
components directly associated with nitrogen generation is to be
expected, and does not impact normal operation.
It may take a few minutes to replenish the pressure in the storage
tank to maximum next time the NTF-230 is used. This is normal.
NORMAL OPERATION – LOSS OF PRESSURE
1
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PICTOGRAMS
Warning: Hazard that can cause death or serious injury. Follow the instructions.
Caution: Danger that can cause damage to the equipment. Follow the
instructions.
Warning: Risk of death due to suffocation.
Risk of fire: Oxygen-enriched air leads to an increased risk of fire in the event of
contact with flammable products.
High pressure risk: Follow the instructions with respect to compressed gasses.
Instructions with respect to the environment.
HEALTH, SAFETY AND ENVIRONMENTAL ASPECTS
GENERAL
Correct use of the NTF-230 Nitrogen generator is important for your personal safety and for trouble-free
functioning. Incorrect use can cause damage to the NTF-230 or can lead to incorrect gas supply to the
customer’s process.
Warning: Read this manual before you start operating the NTF-230. Prevent
accidents and damage. Contact RTI if you detect a problem that you cannot
solve with this manual.
COMPRESSED AIR
2
Warning: Ensure that the inlet air pressure can not exceed 190 psig.
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NITROGEN AND OXYGEN
The NTF-230 generates Nitrogen as a product. Oxygen enriched air is released as waste.
Warning
Nitrogen can cause suffocation. Oxygen enriched air leads to increased risk of
fire in the event of contact with flammable products. Make sure that there is
adequate ventilation at all times!
Do not install the NTF-230 in an area where explosive substances may be
present.
DESCRIPTION OF THE NTF-230 MEMBRANE
GENERAL
The NTF-230 separates compressed air into nitrogen and an oxygen enriched air stream. The
separation system is based on membrane technology. The compressed air comes from a central
system or from a dedicated compressor.
The nitrogen produced is stored in the nitrogen storage vessel. The NTF-230 manually switches on and
off, depending on the nitrogen demand.
Separation Principle
Separation Layer
Support Layer
Pressurized
Air
A C
B
Nitrogen
HO,H
22
FS
O
2
N
2
A Pressurized air inlet F Fast
B Hollow fiber membrane S Slow
C Nitrogen outlet
Ambient air contains nitrogen (78.1%), oxygen (20.9%), argon (1%), carbon dioxide, water vapor and
traces of other inert gasses. Pressurized air (A) is fed through the hollow fiber membrane (B). The
various air components diffuse through the wall of the membrane.
The diffusion rate differs for the various gases:
Oxygen and water vapor have a high diffusion rate and permeate rapidly through the membrane
wall.
Nitrogen has a low diffusion rate and permeates slowly through the membrane wall.
At the exit of the membrane (C), pressurized nitrogen is released.
3