Capacity & Dimensions | Butterfly Valves
Cfh (m3/h) 70° open at 1"w.c. (2.5 mbar) pressure drop 70° (21.1C) 10"w.c. upstream pressure
scfh wide open at 1"w.c. DP of air
Imperial (Metric) Valve designation 1122A-0 (M1122A-0) 1122A-1 (M1122A-1) 1122A-2 (M1122A-2) 1122A-3 (M1122A-3) 1122A-4 (M1122A-4)
Pipe Size
air
natural gas
C V (K V )
3/4"
255 (7.2) 680 (19.2) 1130 (32.0) 1450 (41.0) 2900 (82.1)
329 (9.3) 878 (24.8) 1459 (41.3) 1872 (53.0) 3744 (106.0)
500 940
5.9 (5.1)
1"
15.6 (13.4)
11/4" 11/2"
1900 2800 5320
26 (22.4) 33 (28.4) 66 (56.8)
2"
1122A-5 1122A-6 1122A-7 1122A-8
21/2"
4570 (129.3) 7560 (214.0)
5900 (167.0) 9760 (276.2)
8350
105 (90.3
3" 3" 6"
14 500 29 100 78 100
173 (148.8) 348 (299.3) 1050 (903)
15 200 (430.2) 45 800 (1296.3)
19 623 (555.4) 59 128 (1673.5)
F
DIMENSIONS INCHES (MM)
E
D
3
B
A
C
dimensions in inches (mm)
Imperial (Metric) Valve designation
wt. lb (kg)
A
B
C
D
E
F
1122A-0 M1122A-0 1122A-1 M1122A-1 1122A-2 M1122-A-2 1122A-3 M1122A-3 1122A-4 M1122A-4
3/4" NPT ISO7-Rp 3/4 1" NPT ISO7-Rp 1 11/4" NPT ISO7-Rp 11/4 11/2" NPT ISO7-Rp 11/2 2" NPT ISO7-Rp 2
21/4 (57) 21/4 (57) 21/4 (57) 21/2 (64) 3 (76)
21/2 (64) 21/2 (64) 21/2 (64) 25/8 (67) 3 (76)
3 (76) 3 (76) 3 (76) 3 (76) 37/16 (87)
11/8 (29) 11/8 (29) 11/8 (29) 11/4 (32) 11/2 (38)
45/16 (109) 45/16 (109) 45/16 (109) 41/2 (114) 51/16 (129)
11/2 (0.7) 11/2 (0.7) 11/2 (0.7) 13/4 (0.8) 2 (0.9)
1122A-5 1122A-6 1122A-7 1122A-8
21/2" NPT 313/16 (97)
31/2 (89) 37/8 (99) 41/2 (114) 51/8 (130)
33/4 (95)
2 (51)
53/4 (146) 69/16 (167) 75/8 (194) 93/4 (2480
31/4 (1.5) 5 (2.3) 7 (3.2) 11 (5.0)
3" NPT 4" NPT 6" NPT
41/2 (114) 55/8 (143) 73/4 (197)
41/16 (103) 45/8 (117) 53/4 (146)
21/2 (64)
3 (76)
4 (102)
DIMENSIONS SHOWN ARE SUBJECT TO CHANGE. PLEASE OBTAIN CERTIFIED PRINTS FROM FIVES NORTH AMERICAN COMBUSTION, INC. IF SPACE LIMITATIONS OR OTHER CONSIDERATIONS MAKE EXACT DIMENSION(S) CRITICAL .
Bulletin 1122 Page 3
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