OPERATION MANUAL NTF-15 Nitrogen Tire Filling Valve Stem Caps (Qty=200) Order P/N 436075 RTI Technologies, Inc 10 Innovation Drive York, PA 17402 800-468-2321 www.rtitech.
TABLE OF CONTENTS Pictograms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Health, Safety and Environmental Aspects . . . . . . . . . . 1 Description of the NTF-15 Membrane . . . . . . . . . . . . . . 2 Process Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Unpack & Check Equipment . . . . . . . . . . . . . . . . . . . . . 3 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . .
PICTOGRAMS In this manual the following pictograms are used: Warning A warning shows a hazard that can cause death or serious injury. Follow the instructions. Caution A caution shows a 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.
Nitrogen and Oxygen The NTF-15 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-15 in an area where explosive substances may be present.
PROCESS PARAMETERS The nitrogen production depends on these parameters: Flow rate The lower the flow rate of compressed air through the hollow fiber membrane, the more oxygen can permeate through the membrane wall. As a result, the nitrogen produced at the outlet will have a higher purity. Nitrogen purity can be adjusted with the flow control valve. Temperature The NTF-15 operates at a temperature between 40-1100F (70-800F optimally).
SAFETY PRECAUTIONS Warning Ensure there is sufficient ventilation. Only feed the NTF-15 with air. Keep the air feed to the NTF-15 clean and free of vapors of organic solvents and other contaminants. Do not place the NTF-15 in a room where organic solvent vapors may be present. Keep the ambient temperature between 40 and 110 °F. Do not connect hot compressed air directly from a compressor to the inlet of the NTF-15. Regular maintenance should be performed on the NTF-15 to ensure proper and safe operation.
Vacuum Tire 1. Install deflators and check for foreign substances as explained on the preceeding page. 2. Connect shop air (100 - 150 PSI) to the air inlet port on the rear of the NTF-15. If your application requires an inlet pressure of 100 - 119 PSI, an adjustment to the automatic pressure switch may be required. Contact RTI Technical Support at 800-468-2321 for further details 3. Turn both panel valves to VACUUM TIRE. 4. Place air chuck (on the end of the NTF-15 coiled green hose) on valve stem.
TESTING NITROGEN PURITY The NitroPro Purity Tester can be used to determine the percent of nitrogen produced by the NTF-15 by connecting to the Test Port. It can also be used to determine the percent of nitrogen in the air in the tires after performing a service. Refer to the Operation Manual for the NitroPro Purity Tester (035-81169-00) for further details.
MAINTENANCE Part Action Frequency Filter Replace filter element. Refer to Page 6 One time per year, or when indicator on the filter head reaches the end of the indicator bar. Automatic drain Clean automatic drain. Refer to Page 6 When required Replace Filter Element Turn off the air supply. Let the system depressurize until the pressure gauge reads 0 psi. Unscrew the bleed screw (F) slowly to ensure that the filter is depressurized.
PARTS IDENTIFICATION Part Number Description AIR PRESSURE 1 N2 PURITY STANDBY 3 STANDBY N2 PRESSURE TEST PORT 2 VACUUM TIRE 1 FILL TIRE VACUUM TIRE FILL TIRE 4 NTF-15 CONNECTED TO BALL VALVE 5 6 7 8 9 10 11 026-80379-00 2 in Gauge 0-160 psig/bar 1/4MPT 2 023-80364-00 FTG Test Port 1/4 MPT X valve stem 3 022-80028-00 3-way ball valve 1/4 FPT (BHD) 4 026-80330-00 pneumatic vacuum pump 5 022-80005-00 relief valve 300 psi 6 026-80394-00 nitrogen membrane (2.
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