Bulletin 74.2:Y696
6
Table 5. Gas Flow Required for Thermal Heating (Outbreathing) per API 2000 (Interpolate for Intermediate Sizes)
TANK CAPACITY,
BARRELS
TANK CAPACITY,
GALLONS
OUTBREATHING (FLASH POINT
< 100°F OR NORMAL BOILING POINT
< 300°F), SCFH AIR
60
100
500
1000
2500
4200
21 000
42 000
60
100
500
1000
2000
3000
4000
5000
84 000
126 000
168 000
210 000
2000
3000
4000
5000
10 000
15 000
20 000
25 000
420 000
630 000
840 000
1 050 000
10 000
15 000
20 000
24 000
30 000
35 000
40 000
45 000
1 260 000
1 470 000
1 680 000
1 890 000
28 000
31 000
34 000
37 000
50 000
60 000
70 000
80 000
2 100 000
2 520 000
2 940 000
3 360 000
40 000
44 000
48 000
52 000
90 000
100 000
120 000
3 780 000
4 200 000
5 040 000
56 000
60 000
68 000
140 000
160 000
180 000
5 880 000
6 720 000
7 560 000
75 000
82 000
90 000
TANK CAPACITY,
m
3
OUTBREATHING (FLASH POINT
< 38°C OR NORMAL BOILING POINT
< 149°C), Nm
3
/h AIR
10
20
100
200
1,6
2,7
13,4
26,8
300
500
700
1000
53,6
80,4
107
134
1500
2000
3000
3180
268
402
536
643
4000
5000
6000
7000
750
831
911
992
8000
9000
10 000
12 000
1072
1179
1286
1394
14 000
16 000
18 000
1501
1608
1822
20 000
25 000
30 000
2010
2198
2412
Table 6. Flow Rate Conversion
(1)
MULTIPLY MAXIMUM PUMP RATE OUT: BY TO OBTAIN
(1)
:
U.S. GPM
U.S. GPH
m
3
/hr
8.021
0.1337
1.01
SCFH
SCFH
Nm
3
/h
Barrels/hour
Barrels/day
5.615
0.2340
SCFH
SCFH
1. Gas ow of blanketing gas to replace liquid pumped out.
Table 7. Capacities
OUTLET PRESSURE RANGE,
SPRING PART NUMBER,
AND COLOR
SET PRESSURE
BUILDUP TO OBTAIN
WIDE-OPEN TRAVEL
OUTLET PRESSURE
VACUUM
CAPACITIES IN SCFH (Nm
3
/h)
OF 0.97 SPECIFIC GRAVITY
NITROGEN
2 to 5-inches w.c.
(5 to 12 mbar)
1A200127022, Red
2-inches w.c.
(5 mbar)
2.6-inches w.c.
(6 mbar)
0 psig (0 bar)
2.5 psig (0,17 bar)
5 psig (0,34 bar)
1420 (38,1)
5130 (137)
6560 (176)
4-inches w.c.
(10 mbar)
2.6-inches w.c.
(6 mbar)
0 psig (0 bar)
2.5 psig (0,17 bar)
5 psig (0,34 bar)
1680 (45,0)
5200 (139)
6600 (177)
5 to 15-inches w.c.
(12 to 37 mbar)
1B766627062, Gray
15-inches w.c.
(37 mbar)
3.9-inches w.c.
(10 mbar)
0 psig (0 bar)
2.5 psig (0,17 bar)
5 psig (0,34 bar)
2810 (75,3)
5580 (150)
6850 (184)
8-inches w.c. to 1 psig
(20 to 69 mbar)
0B019427052, Dark Green
21-inches w.c.
(52 mbar)
7.7-inches w.c.
(19 mbar)
0 psig (0 bar)
2.5 psig (0,17 bar)
5 psig (0,34 bar)
3510 (94,1)
5950 (159)
7160 (192)
1 to 2.8 psig
(69 mbar to 0,19 bar)
0A081127202, Orange
2 psig
(0,14 bar)
23-inches w.c.
(57 mbar)
0 psig (0 bar)
2.5 psig (0,17 bar)
5 psig (0,34 bar)
5820 (156)
7410 (199)
8340 (224)
2 to 3.5 psig
(0,14 to 0,24 bar)
0Y066427022, Green Stripe
3 psig
(0,21 bar)
3.2 psig
(0,22 bar)
0 psig (0 bar)
2.5 psig (0,17 bar)
5 psig (0,34 bar)
8790 (236)
9770 (262)
10 400 (279)
4 to 7 psig
(0,28 to 0,48 bar)
1H802427032, Red
5 psig
(0,34 bar)
5.87 psig
(0,41 bar)
0 psig (0 bar)
2.5 psig (0,17 bar)
5 psig (0,34 bar)
12 000 (322)
12 700 (340)
13 100 (351)
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