
Bulletin 71.2:92S
11
Table 5. Flow Capacities in Pounds per Hour
/ kg/h of Saturated Steam
- continued -
OUTLET
PRESSURE
SETTING
(1)
PILOT
TYPE
NUMBER
INLET
PRESSURE
MAIN VALVE BODY SIZE, NPS / DN
DROOP1 / 25 1-1/2 / 40 2 / 50 2-1/2 / 65 3 / 80 4 / 100 6 x 4 / 150 x 100
psig bar psig bar lbs/h kg/h lbs/h kg/h lbs/h kg/h lbs/h kg/h lbs/h kg/h lbs/h kg/h lbs/h kg/h
5 0.35 6492L
25
30
50
1.7
2.1
3.5
575
700
950
261
318
431
950
1,150
1,800
431
522
816
1,750
1,880
2,950
794
853
1,338
1,000
1,500
4,180
454
680
1,896
1,225
2,200
6,550
556
998
2,971
2510
4000
8500
1,139
1,814
3,856
2,600
4,100
8,600
1,179
1,860
3,901
1 psi /
0.07 bar
75
100
150
5.2
6.9
10.3
1,350
1,725
1,800
612
782
816
2,375
3,050
4,050
1,077
1,383
1,837
4,100
5,600
6,150
1,860
2,540
2,790
6,000
8,500
11,900
2,722
3,856
5,398
8,400
10,300
16,900
3,810
4,672
7,666
12,600
14,300
23,000
5,715
6,486
10,433
12,900
15,100
23,600
5,851
6,849
10,705
10% of
outlet
pressure
setting
10 0.69
6492H or
6492L
30
50
75
2.1
3.5
5.2
700
1,040
1,440
318
472
653
1,200
1,800
2,600
544
816
1,179
2,050
3,100
4,400
930
1,406
1,996
3,050
4,700
6,000
1,383
2,132
2,722
4,300
6,250
9,000
1,950
2,835
4,082
5800
8920
11,000
2,631
4,046
4,990
5,800
9,200
11,500
2,631
4,173
5,216
100
150
200
6.9
10.3
13.8
1,800
2,350
2,150
816
1066
975
3,300
4,500
5,100
1,497
2,041
2,313
5,600
8,000
9,200
2,540
3,629
4,173
8,600
12,000
3,901
5,443
10,700
17,000
4,854
7,711
16,300
19,600
7,394
8,891
17,100
20,200
7,757
9,163
15 1.0
6492L,
6492H, or
6492HT
35
50
75
2.4
3.5
5.2
710
1,040
1,440
322
472
653
1,300
1,800
2,650
590
816
1,202
2,100
2,950
4,300
953
1,338
1,950
2,300
4,550
6,300
1,043
2,064
2,858
3,200
6,200
8,900
1,452
2,812
4,037
4600
7700
11,900
2,087
3,493
5,398
4,600
8,100
12,200
2,087
3,674
5,534
100
150
200
6.9
10.3
13.8
1,820
2,600
3,400
826
1179
1542
3,400
4,800
6,200
1,542
2,177
2,812
5,450
7,800
10,200
2,472
3,538
4,627
8,100
12,100
3,674
5,489
11,800
16,900
5,352
7,666
16,100
23,100
7,303
10,478
16,800
23,800
7,620
10,796
20 1.4
6492L,
6492H, or
6492HT
50
75
100
150
200
3.5
5.2
6.9
10.3
13.8
1,040
1,440
1,820
2,650
3,450
472
653
826
1202
1565
1,800
2,700
3,450
4,900
6,400
816
1,225
1,565
2,223
2,903
2,950
4,300
5,450
7,950
10,300
1,338
1,950
2,472
3,606
4,672
4,590
6,450
8,650
12,300
2,082
2,926
3,924
5,579
6,250
9,100
11,900
17,150
2,835
4,128
5,398
7,779
7,570
11,000
16,200
23,500
3,434
4,990
7,348
10,660
7,700
11,800
16,900
24,100
3,493
5,352
7,666
10,932
30 2.1
6492H,
6492HT
50
75
100
150
200
3.5
5.2
6.9
10.3
13.8
900
1,440
1,820
2,650
3,450
408
653
826
1202
1565
1,650
2,700
3,450
4,900
6,500
748
1,225
1,565
2,223
2,948
2,700
4,300
5,450
7,950
10,000
1,225
1,950
2,472
3,606
4,536
4,040
6,580
8,400
12,000
15,700
1,833
2,985
3,810
5,443
7,122
5,350
8,800
11,800
17,000
22,100
2,427
3,992
5,352
7,711
10,025
7770
12,000
19,000
23,100
30,100
3,524
5,443
8,618
10,478
13,653
8,100
12,500
19,600
23,800
30,600
3,674
5,670
8,891
10,796
13,880
40 2.8
6492H,
6492HT
60
75
100
150
200
4.1
5.2
6.9
10.3
13.8
1,100
1,440
1,820
2,650
3,450
499
653
826
1202
1565
1,750
2,500
3,450
4,900
6,500
794
1,134
1,565
2,223
2,948
3,300
4,300
5,450
7,950
10,300
1,497
1,950
2,472
3,606
4,672
4,500
6,300
8,500
12,600
16,700
2,041
2,858
3,856
5,715
7,575
6,400
8,350
11,400
17,000
22,650
2,903
3,788
5,171
7,711
10,274
8800
11,300
15,300
23,000
30,600
3,992
5,126
6,940
10,433
13,880
9,000
11,900
16,100
24,000
31,400
4,082
5,398
7,303
10,886
14,243
50 3.5
6492H,
6492HT
75
100
150
200
250
5.2
6.9
10.3
13.8
17.2
1,250
1,820
2,650
3,450
4,300
567
826
1202
1565
1950
2,250
3,200
4,900
6,500
8,000
1,021
1,452
2,223
2,948
3,629
3,750
5,450
7,950
10,300
12,900
1,701
2,472
3,606
4,672
5,851
4,950
8,400
12,200
15,695
2,245
3,810
5,534
7,119
7,950
11,800
17,000
22,100
3,606
5,352
7,711
10,025
10,800
16,100
23,100
30,100
4,899
7,303
10,478
13,653
11,500
17,000
24,000
31,000
5,216
7,711
10,886
14,062
60 4.1
6492H,
6492HT
80
100
150
200
250
5.5
6.9
10.3
13.8
17.2
1,365
1,780
2,650
3,450
4,300
619
807
1202
1565
1950
2,300
3,100
4,900
6,500
8,000
1,043
1,406
2,223
2,948
3,629
4,080
5,300
7,950
10,300
12,900
1,851
2,404
3,606
4,672
5,851
5,500
7,880
12,300
16,400
2,495
3,574
5,579
7,439
7,700
10,600
16,750
22,450
3,493
4,808
7,598
10,183
10,500
14,200
22,700
30,200
4763
6,441
10,297
13,699
11,000
15,000
23,000
31,000
4,990
6,804
10,433
14,062
80 5.5
6492H,
6492HT
100
150
200
250
6.9
10.3
13.8
17.2
1,450
2,600
3,450
4,300
658
1179
1565
1950
2,600
4,650
6,500
8,000
1,179
2,109
2,948
3,629
4,350
7,800
10,300
12,900
1,973
3,538
4,672
5,851
6,270
11,700
15,600
19,300
2,844
5,307
7,076
8,754
9,250
15,850
21,750
27,750
4,196
7,190
9,866
12,587
11,900
21,400
29,600
38,000
5,398
9,707
13,427
17,237
12,300
22,000
30,200
39,000
5,579
9,979
13,699
17,690
100 6.9
6492H,
6492HT
125
150
200
250
300
8.6
10.3
13.8
17.2
20.7
1,900
2,490
3,450
4,300
5,050
862
1129
1565
1950
2291
3,300
4,350
6,250
8,000
9,400
1,497
1,973
2,835
3,629
4,264
5,700
7,450
10,300
12,900
15,100
2,586
3,379
4,672
5,851
6,849
8,470
11,000
15,700
20,100
3,842
4,990
7,122
9,117
11,400
14,900
21,350
26,800
5,171
6,759
9,684
12,156
14,400
19,900
28,700
35,700
6,532
9,027
13,018
16,194
15,200
20,500
29,100
36,500
6,895
9,299
13,200
16,556
1. Standard pilot or combination of setting plus loading pressure or optional pilot.
- shaded areas show where maximum differential pressure is exceeded.
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