Data Sheet
Bulletin 71.2:299H
18
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
Orice Size Inch / mm
1/4 x 3/8 / 6.4 x 9.5 3/8 / 95 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
1 to 3.25 psig /
69 bar to 0.22 bar
2 psig / 0.14 bar
± 1% psia / bar
T13593T0012
Light Blue
5
10
15
0.34
0.69
1.0
1020
1550
1920
27.3
41.5
51.4
2100
3340
4360
56.4
89.5
117
3640
5840
7580
97.5
157
203
7440
12,040
15,990
199
323
429
10,980
15,460
20,900
294
414
560
13,800
17,710
20,670
370
475
554
20
25
30
40
1.4
1.7
2.1
2.8
2240
2670
2890
3530
60.0
71.5
77.4
94.6
5150
5890
6640
8120
138
158
178
218
8960
10,250
11,540
14,120
240
275
309
378
19,250
22,030
27,800
27,070
516
590
745
725
22,470
24,000
24,860
25,640
602
643
666
687
21,620
22,410
24,170
26,160
579
601
648
701
50
60
80
100
3.4
4.1
5.5
6.9
4180
4820
6110
7400
112
129
164
198
9600
11,090
14,050
17,020
257
297
377
456
16,700
19,280
24,440
29,840
448
517
655
800
28,970
25,770
25,500
14,260
776
691
683
382
26,390
26,000
12,800
28,300
707
697
343
758
26,900
29,000
30,000
721
777
804
125
150
175
8.6
10.3
12.1
8170
8450
12,400
219
226
332
12,360
13,750
7100
331
369
190
17,520
18,580
20,000
470
498
536
13,260
17,000
355
456
2.75 to 6 psig /
0.19 to 0.41 bar
5 psig / 0.34 bar
±1 % psig / bar
T13671T0012
Orange
10
15
0.69
1.0
1390
1870
37.2
50.1
2910
4190
78.0
112
5050
7280
135
195
10,350
15,150
277
406
13,200
21,850
354
586
16,070
21,370
431
573
20
25
30
40
1.4
1.7
2.1
2.8
2240
2570
2890
3530
60.0
68.9
77.4
94.6
5090
5890
6640
8120
136
158
178
218
8850
10,250
11,540
14,120
237
275
309
378
18,640
21,260
24,340
27,670
500
570
652
742
21,350
24,540
26,500
28,300
572
658
710
758
21,390
22,740
25,870
28,930
573
609
693
775
50
60
80
100
3.4
4.1
5.5
6.9
4180
4820
6110
7400
112
129
164
198
9600
11,090
14,050
17,020
257
297
377
456
16,700
19,280
24,440
29,600
448
517
655
793
30,570
29,390
31,410
22,150
819
788
842
594
29870
30,390
28,000
32,000
801
814
750
858
30,000
31,000
34,000
804
831
911
125
150
175
8.6
10.3
12.1
9020
10,630
11,800
242
285
316
20,730
17,170
15,400
556
460
413
36,050
26,560
21,500
966
712
576
21,590
17,000
579
456
5 to 16 psig /
0.34 to 1.1 bar
10 psig / 0.69 bar
± 1% psia / bar
T13600T0012
Red
15
20
25
30
40
1.0
1.4
1.7
2.1
2.8
1580
2130
2540
2890
3530
42.3
57.1
68.1
77.4
94.6
3280
4720
5740
6580
8120
87.9
126
154
176
218
5690
8210
9940
11,440
14,120
152
220
266
307
378
11,640
17,000
20,790
24,150
28,660
312
456
557
647
768
15,420
19,500
25,440
29,250
32,780
413
523
682
784
879
18,340
21,000
23,290
28,700
33,540
492
563
624
769
899
50
60
80
100
3.4
4.1
5.5
6.9
4180
4820
6110
7400
112
129
164
198
9600
11,090
14,050
17,020
257
297
377
456
16,700
19,280
24,440
29,600
448
517
655
793
33,230
35,410
41,270
35,310
891
949
1106
946
35,680
37,700
38,000
35,000
956
1010
1018
938
33,100
33,100
37,000
887
887
992
125
150
175
8.6
10.3
12.1
9020
10,630
11,200
242
285
300
20,730
20,590
18,100
556
552
485
36,050
34,530
25,000
966
925
670
35,740
22,000
958
590
5 to 16 psig /
0.34 to 1.1 bar
15 psig / 10 bar
± 1% psia / bar
T13600T0012
Red
20
25
30
40
50
60
1.4
1.7
2.1
2.8
3.4
4.1
1750
2360
2820
3540
4180
4820
46.9
63.2
75.6
94.9
112
129
3620
5220
6290
8070
9600
11,090
97.0
140
169
216
257
297
6290
9070
10,940
14,020
16,700
19,280
169
243
293
376
448
517
12,830
18,700
22,790
29,650
35,890
41,440
344
501
611
795
962
1111
17,640
26,350
31,990
37,270
41,490
45,020
473
706
857
999
1112
1207
20,640
23,850
31,540
38,150
43,000
39,000
553
639
845
1022
1152
1045
80
100
125
150
175
5.5
6.9
8.6
10.3
12.1
6110
7400
9020
10,630
11,800
164
198
242
285
316
14,050
17,020
20,730
24,440
27,400
377
456
556
655
734
24,440
29,600
36,050
42,500
48,000
655
793
966
1139
1286
51,120
48,470
49,780
60,000
1370
1299
1334
1608
49,000
46,000
1313
1233
43,000 1152
14 to 35 psig /
0.97 to 2.4 bar
20 psig / 14 bar
± 1% psia / bar
19B0432X012
Zinc
25
30
40
50
60
1.7
2.1
2.8
3.4
4.1
1920
2580
3480
4180
4820
51.4
69.1
93.3
112
129
3930
5680
7830
9550
11,090
105
152
210
256
297
6840
9870
13,610
16,610
19,280
183
265
365
445
517
13,930
20,280
28,440
35,140
41,440
373
544
762
942
1111
20,800
30,630
33,040
41,800
47,530
557
821
885
1120
1274
21,940
32,630
35,700
40,520
40,520
588
874
957
1086
1086
80
100
125
150
175
5.5
6.9
8.6
10.3
12.1
6110
7400
9020
10,630
11,600
164
198
242
285
311
14,050
17,020
20,730
24,440
26,300
377
456
556
655
705
24,440
29,600
36,050
42,500
47,000
655
793
966
1139
1260
51,240
52,260
56,710
65,000
1373
1401
1520
1742
41,800
41,800
1120
1120
41,000 1099
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 orice size is exceeded.
- continued -