Data Sheet

Bulletin 71.2:299H
19
Table 7. Types 299H and 299HR Flow Capacities
(1)
for NPS 2 / DN 50 Internal Registration (continued)
OUTLET PRESSURE
RANGE, SETTING,
ACCURACY, SPRING PART
NUMBER AND COLOR
INLET PRESSURE
CAPACITIES IN SCFH / Nm
3
/h OF 0.6 SPECIFIC GRAVITY NATURAL GAS
Orice Size, Inch / mm
1/4 x 3/8 / 6.4
x 9.5
3/8 / 9.5 1/2 / 13 3/4 / 19 1 / 25 1-3/16 / 30
psig bar SCFH Nm
3
/h SCFH Nm
3
/h SCFH Nm
3
/h SCFH Nm
3
/h SCFH Nm
3
/h SCFH Nm
3
/h
14 to 35 psig /
0.97 to 2.4 bar
25 psig / 1.7 bar
±1% psia / bar
19B0432X012
Zinc
30
40
50
60
2.1
2.8
3.4
4.1
2070
3320
4140
4830
55.5
89.0
111
129
4230
7350
9340
11,030
113
197
250
296
7360
12,780
16,250
19,190
197
343
436
514
14,980
23,420
34,040
40,630
401
628
912
1089
22,310
40,220
42,110
50,050
598
1078
1129
1341
23,270
33,260
50,000
54,000
624
891
1340
1447
80
100
125
150
175
5.5
6.9
8.6
10.3
12.1
6110
7400
9020
10,630
11,000
164
198
242
285
295
14,050
17,020
20,730
24,440
26,500
377
456
556
655
710
24,440
29,600
36,050
42,500
46,000
655
793
966
1139
1233
51,360
56,050
63,640
77,000
1376
1502
1706
2064
62,000
60,000
1662
1608
60,000 1608
14 to 35 psig /
0.97 to 2.4 bar
30 psig / 2.1 bar
±1% psia / bar
19B0432X012
Zinc
40
50
60
80
2.8
3.4
4.1
5.5
2980
4020
4800
6110
79.9
108
129
164
6520
8950
10,850
14,050
175
240
291
377
11,330
15,560
18,870
24,440
304
417
506
655
23,190
32,300
39,600
51,480
621
866
1061
1380
24,580
42,430
52,560
72,000
659
1137
1409
1930
30,810
50,000
54,000
72,000
826
1340
1447
1930
100
125
150
175
6.9
8.6
10.3
12.1
7400
9020
10,630
10,200
198
242
285
273
17,020
20,730
24,440
25,000
456
556
655
670
29,600
36,050
42,500
48,000
793
966
1139
1286
59,840
70,570
84,000
1604
1891
2251
76,000 2037
14 to 35 psig /
0.97 to 2.4 bar
35 psig / 2.4 bar
±1% psia / bar
19B0432X012
Zinc
40
50
60
80
2.8
3.4
4.1
5.5
2350
3770
4700
6120
63.0
101
126
164
4790
8300
10,510
14,000
128
222
282
375
8330
14,430
18,270
24,350
223
387
490
653
16,920
29,690
38,050
51,600
453
796
1020
1383
20,350
42,740
55,080
70,000
545
1145
1476
1876
28,360
48,000
60,000
74,000
760
1286
1608
1983
100
125
150
175
6.9
8.6
10.3
12.1
7400
9020
10,630
11,200
198
242
285
300
17,020
20,730
24,440
25,500
456
556
655
683
29,600
36,050
42,500
49,000
793
966
1139
1313
63,630
77,500
87,000
1705
2077
2332
76,000 2037
30 to 60 psig /
2.1 to 4.1 bar
40 psig / 2.8 bar
±1% psia / bar
19B0432X022
Green
50
60
80
100
3.4
4.1
5.5
6.9
1600
2800
5200
7600
42.9
75.0
139
204
6500
8170
11,500
13,500
174
219
308
362
9000
17,000
23,000
29,000
241
456
616
777
20,000
33,000
48,000
31,000
536
884
1286
831
28,000
48,000
66,000
76,000
750
1286
1769
2037
34,000
52,000
68,000
911
1394
1822
125
150
175
8.6
10.3
12.1
8200
9800
11,400
220
263
306
19,000
22,750
26,500
509
610
710
35,000
42,000
47,000
938
1126
1260
76,000
91,000
2037
2439
30 to 60 psig /
2.1 to 4.1 bar
50 psig / 3.4 bar
±1% psia / bar
19B0432X022
Green
60
80
100
4.1
5.5
6.9
3400
5800
6200
91.1
155
166
7000
11,000
15,000
188
295
402
10,000
21,000
26,000
268
563
697
21,000
45,000
59,000
563
1206
1581
32,000
69,000
88,000
858
1849
2358
45,000
74,000
1206
1983
125
150
175
8.6
10.3
12.1
8400
9600
10,800
225
257
289
19,500
23,000
26,500
523
616
710
35,000
42,000
49,000
938
1126
1313
77,000
89,000
2064
2385
30 to 60 psig /
2.1 to 4.1 bar
60 psig / 4.1 bar
±1% psia / bar
19B0432X022
Green
80
100
125
5.5
6.9
8.6
2800
3600
2800
75.0
96.5
75.0
3500
9500
15,000
93.8
255
402
17,000
23,000
22,000
456
616
590
36,000
50,000
69,000
965
1340
1849
52,000
64,000
90,000
1394
1715
2412
53,000 1420
150
175
10.3
12.1
4600
6400
123
172
11,000
7000
295
188
18,000
18,000
482
482
89,000 2385
1. Downstream piping may affect actual capacity. It may be necessary to use enlarged downstream piping to obtain published capacities.
- Blank areas indicate where maximum operating inlet pressure for a given orice size is exceeded.