English Imperial Units
Manual Mode Gas Flow Rate =
(2.48 x Manual Mode
Gas Flow Rate (2.48))/
Injection Concentration
International Standard Units
Manual Mode Gas Flow Rate =
(40 x Manual Mode
Gas Flow Rate (40))/
Injection Concentration
“Manual Mode Gas Flow Rate (2.48)” and “Manual
Mode Gas Flow Rate (40))” values are listed in the
third column of Tables 3a and 3b.
Example:
Injection Concentration = 0.62 LBS/MMCF
Odorant Flow Rate = 17.7 MCF/h
Manual Mode Gas Flow Rate
=
(2.48 x 9.531)/ 0.62
= 38.124 MCF/D
Position the metering device screw more or less open
depending on the odorant flow rate. In order to obtain
low odorant flow rate the orifice must be nearly closed
and vice versa.
ODORANT FLOW RATE
(SEE PNEUMATIC PANEL NAMEPLATE)
INjECTION CONCENTRATION
MANUAL MODE GAS FLOW RATE
SPECIFIC VOLUME
FOR INjECTOR
(1)
MCF/h
LBS/MMCF
MCF/D
LBS/sec
17.7
2.48
9.531
0.00165
35.3
19.062
0.00330
70.6
38.124
0.00660
141.3
76.248
0.01320
211.9
114.372
0.01980
282.5
152.496
0.02640
353.1
190.620
0.03300
423.8
228.744
0.03960
494.4
266.868
0.04620
1. The specific volume entered for injector must be calculated. Multiply the specific gravity of the odorant to be injected (typical values range between 0.5 and 1.0) by the value that may be
found on the nameplate of the pneumatic panel titled: Specific volume injector N°1. These values are listed in right column of above table. Example, with an odorant specific gravity of
0.6 and the specific volume of injector 1 being 0.0132 lbs/sec, the entered value would be: 0.6 * 0.0132 = 0.00792 (entered value).
ODORANT FLOW RATE
(SEE PNEUMATIC PANEL NAMEPLATE)
INjECTION CONCENTRATION
MANUAL MODE GAS FLOW RATE
SPECIFIC VOLUME
FOR INjECTOR
(1)
l/h
mg/m
3
Stm
3
/D
g/s
0.5
40
270,000
0.75
1
540,000
1,5
2
1,080,000
3
4
2,160,000
6
6
3,240,000
9
8
4,320,000
12
10
5,400,000
15
12
6,480,000
18
14
7,560,000
21
1. The specific volume entered for injector must be calculated. Multiply the specific gravity of the odorant to be injected (typical values range between 0.5 and 1.0) by the value that may be
found on the nameplate of the pneumatic panel titled: Specifi c volume injector N°1. These values are listed in right column of above table. Example, with an odorant specific gravity of
0.6 and the specific volume of injector 1 being 6 g/sec, the entered value would be:0.6 * 6 = 3.6 (entered value),
Table 3a.
Imperial Parameters
Table 3b.
International Standard Parameters
17
Type Dosaodor-D
