Data Sheet
A11 Valve
D500203X012
Product Bulletin
21.1:A11
May 2013
16
Pressure Drops
Pressure drop limits of any given valve are based on
valve body, and trim material limits. To find the
appropriate pressure drop limitation, choose the
desired valve size and temperature range. Then search
table 17 for body limitations and tables 18, 19, 20, and
21 for trim limitations. Information on limits for
S31254, CW2M, M35-1 and other alloy constructions
can be obtained by contacting your Emerson Process
Management sales office. The l owest number from the
tables is the appropriate limit. T he tables for both trim
and body limits must be consulted.
Table17.MaximumAllowableShutoffPressureDrops(Valve Ratings) Based on Carbon Steel and Stainless Steel
Valve Types
(1)
(The tables for both trim and body limits must be consulted)
TEMPERATURE
RANGE
PRESSURE RANGE
CL150/150 CL150 CL300 CL600 CL900 CL1500
WCC CF8M WCC CF8M WCC CF8M WCC CF8M WCC CF8M WCC CF8M
_C Bar
-254 to -29 --- 10.3 --- 19.0 --- 49.6 --- 99.3 --- 148.9 --- 248.2
-29 to 38 10.3 10.3 20 19.0 51.7 49.6 103.4 99.3 155.1 148.9 258.6 248.2
93 9.3 9.0 17.9 16.2 51.7 42.7 103.4 85.5 155.1 128.2 258.6 213.4
149 8.3 7.9 15.9 14.8 50.3 38.6 100.3 77.2 150.7 115.8 251.0 192.7
204 7.2 7.2 13.8 13.4 48.6 35.5 96.9 70.7 145.5 106.2 242.7 177.2
260 6.2 6.2 11.7 11.7 45.9 33.1 91.7 65.8 137.6 98.9 229.3 164.8
316 5.2 5.2 9.7 9.7 41.7 31.0 83.4 62.1 125.1 93.4 208.6 155.5
343 4.5 4.5 8.6 8.6 40.7 30.3 81.0 61.0 121.7 91.4 202.7 152.4
371 4.1 4.1 7.6 7.6 38.3 30.0 76.5 60.0 114.8 90.0 191.3 149.6
399 3.4 3.4 6.6 6.6 34.8 29.3 70.0 59.0 104.8 88.3 174.8 147.2
427 2.8 2.8 5.5 5.5 28.3 29.0 56.9 58.3 85.2 87.2 141.7 145.5
454 --- 2.4 --- 4.5 --- 29.0 --- 57.6 --- 86.5 --- 144.1
482 --- 1.7 --- 3.4 --- 28.6 --- 57.2 --- 85.8 --- 143.1
510 --- 1.4 --- 2.4 --- 26.5 --- 53.4 --- 80.0 --- 133.1
538 --- 0.7 --- 1.4 --- 25.2 --- 50.0 --- 75.2 --- 125.5
_F Psi
-450 to -20 --- 150 --- 275 --- 720 --- 1440 --- 2160 --- 3600
-20 to 100 150 150 290 275 750 720 1500 1440 2250 2160 3750 3600
200 135 130 260 235 750 620 1500 1240 2250 1860 3750 3095
300 120 115 230 215 730 560 1455 1120 2185 1680 3640 2795
400 105 105 200 195 705 515 1405 1025 2110 1540 3520 2570
500 90 90 170 170 665 480 1330 955 1995 1435 3325 2390
600 75 75 140 140 605 450 1210 900 1815 1355 3025 2255
650 65 65 125 125 590 440 1175 885 1765 1325 2940 2210
700 60 60 110 110 555 435 1110 870 1665 1305 2775 2170
750 50 50 95 95 505 425 1015 855 1520 1280 2535 2135
800 40 40 80 80 410 420 825 845 1235 1265 2055 2110
850 --- 35 --- 65 --- 420 --- 835 --- 1255 --- 2090
900 --- 25 --- 50 --- 415 --- 830 --- 1245 --- 2075
950 --- 20 --- 35 --- 385 --- 775 --- 1160 --- 1930
1000 --- 10 --- 20 --- 365 --- 725 --- 1090 --- 1820
1. For pressure/temperature rating of other materials, contact your Emerson Process Management sales office.