User Manual
Bray/McCannalok HPBV – Valve Sizing Coefficients
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The technical data herein is for general information only. Product suitability should be based solely upon customer’s detailed knowledge and experience with their application.
Coefficients : 19
ASME 150 Series 40/41/4A - Valve Sizing Coefficient (Kv)
Valve
Size
mm
Disc Position (Degrees)
90º 80º 70º 60º 50º 40º 30º 20º 10º
65 136 116 85 67 43 26 14 7 3
80 158 152 132 105 74 48 27 12 4
100 320 311 269 213 149 98 54 26 9
125 674 576 427 307 203 125 67 35 14
150 1,152 913 640 435 281 186 119 69 30
200 2,388 1,902 1,356 904 584 389 239 141 55
250 3,668 2,943 2,073 1,390 896 597 384 213 85
300 5,672 4,546 3,199 2,158 1,390 921 597 333 132
350 6,525 5,203 3,668 2,474 1,612 1,066 691 384 149
400 8,359 6,705 4,700 3,156 2,064 1,305 870 495 196
450 8,957 7,762 5,937 4,350 3,003 1,894 1,007 427 145
500 11,516 9,980 7,506 5,545 3,839 2,405 1,305 546 171
600 17,060 14,586 10,918 8,163 5,664 3,310 1,877 785 205
650 17,060 14,586 10,918 8,163 5,664 3,310 1,877 785 205
700 23,884 20,387 15,525 11,516 7,933 4,862 2,644 1,109 247
750 27,296 23,287 17,828 13,222 9,127 5,715 3,071 1,288 273
800 29,002 24,822 19,022 14,075 9,724 6,099 3,284 1,373 290
850 29,002 24,822 19,022 14,075 9,724 6,099 3,284 1,373 290
900 41,371 35,058 27,040 19,790 13,989 8,701 4,632 1,928 409
1,000 52,886 47,086 37,532 28,405 20,301 12,966 7,336 3,003 572
1,050 55,445 49,474 39,323 29,855 21,325 13,648 7,677 3,156 597
1,200 77,623 69,008 54,336 37,191 24,822 17,060 9,383 3,924 785
1,350 106,625 94,683 74,638 51,180 34,120 23,458 12,795 5,118 1,024
1,500 136,480 119,420 89,565 63,975 42,650 26,443 14,501 5,971 1,194