14
NITROGEN GENERATORS
INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
MIN
Purity
% N
2
4 BARG
5 BARG
6 BARG
7 BARG
8 BARG
9 BARG
10 BARG
Meter SLPM Meter SLPM Meter SLPM Meter SLPM Meter SLPM Meter SLPM Meter SLPM
99.50
-
15
-
23
-
31
2.0
40
2.2
50
2.3
58
2.5
67
99.00
-
20
-
29
2.0
42
2.3
54
2.9
67
3.1
79
3.4
92
98.00
-
28
2.1
42
2.8
58
3.3
75
4.2
96
4.4
113
4.7
129
97.00
-
35
2.7
54
3.6
75
4.2
96
5.1
117
5.6
142
6.0
163
96.00
2.3
42
3.4
67
4.4
92
5.0
117
6.1
142
6.7
171
7.4
200
95.00
2.8
50
3.8
75
5.0
104
5.9
138
7.2
167
7.2
200
8.6
233
Model N2-120
9. OPERATION - ADJUSTMENT PROCEDURES
9.1 Atmospheric Pressure Applications (<10 psig / 0.7 barg)
If the Nitrogen Generator is being used to deliver nitrogen at or near atmospheric pressure
(e.g. purging or blanketing applications), use the following procedure for start-up and adjustment
of the system.
1. Open the (customer installed) inlet air gate valve.
2. Adjust the (customer installed) inlet air pressure regulator until the Operating Pressure
gauge (see Figure 1) shows the pressure required to deliver nitrogen at the desired flow
rate (per flowmeter adjustment label).
3. Set the Flow Control Valve to its fully open position.
4. Adjust the Outlet Pressure Regulator (see Figure 1) until the Outlet Pressure gauge displays
the desired process pressure (<10 psig/0.7 barg).
5. Consult the Nitrogen Purity Label on the control panel of the generator to determine the
proper dimensionless flow meter setting necessary to achieve the desired nitrogen purity.
Adjust the flow control valve on the control panel (see Figure 1) to yield the proper flow
meter reading.
