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High pressure valve, Ball valve, Gate valve, Control valve, Relief valve
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Weir Power & Industrial First choice for power and industrial protection 37
Batley Valve CRYOGENIC HYPERSEAL BV36000
BV 6-0810
Sizing & Selection
Torques for Sizing Actuators - Inch-Pounds (Modified
P.T.F.E. Seat)
Actuator selection is dependent upon a number of variable
factors such as pressure drop across the valve, seat and
bearing friction torques, cryogenic temperatures and flowing
media. The figures in the following table are based on
standard valves and materials working in normal service
conditions. A safety factor as recommended by the actuator
manufacturer should be applied.
50 - 1000mm Class 150lb Full Rated
50 - 1000mm Class 300lb Full Rated
Valve sizes up to 1800mm on request.
Valve dia. Closed pressure drop position psi G
50 100 150 200 285
50 146 152 159 164 174
80 300 317 332 348 375
100 545 579 612 645 704
125 947 1021 1096 1171 1300
150 1249 1357 1465 1574 1756
200 2355 2599 2842 3087 3502
250 3633 4074 4515 4956 5704
300 4738 5503 6267 7030 8330
350 6487 7501 8514 9526 11250
400 9600 11130 12670 14210 16830
450 12250 14460 16660 18870 22600
500 15600 18300 20900 23600 28100
600 23800 28900 34200 39400 48300
700 32300 41800 50500 59100 73700
750 38900 50200 61600 72900 92300
800 45300 58300 71300 84300 106400
900 61400 78700 96000 113400 142800
Valve dia. Closed pressure drop position psi G
300 400 500 600 740
50 176 188 201 215 231
80 427 468 507 546 601
100 802 892 982 1071 1197
125 1323 1473 1623 1773 1983
150 2019 2289 2559 2827 3210
200 3900 4486 5028 5658 6478
250 6309 7338 8365 9390 10840
300 9250 10990 12740 14480 16930
350 14400 18790 20180 23080 27080
400 22200 26800 31440 36040 42500
450 29500 35900 42300 48600 57800
500 38200 46500 54900 63200 74800
600 60400 74400 88400 102100 121600
700 91200 113400 135100 158100 163700
750 108900 141500 169800 198500 238100
800 139800 175600 212800 247400 297300
900 182900 229200 276800 322500 387000
CV values for (class 150) - Vane Angle
Nominal bore 90¢ª 80¢ª 70¢ª 60¢ª 50¢ª 40¢ª 30¢ª 20¢ª 10¢ª
50 89 73 55 40 28 18 11 5 3
80 226 185 140 102 70 45 27 14 7
100 402 330 249 181 125 80 48 24 12
125 642 526 398 289 199 128 77 39 19
150 1204 987 746 542 373 241 144 72 36
200 2190 1796 1358 986 679 438 263 131 66
250 3690 3026 2288 1661 1144 738 443 221 111
300 5483 4496 3399 2467 1700 1097 658 329 164
350 6924 5678 4293 3116 2146 1385 831 415 208
400 9199 7543 5703 4140 2852 1840 1104 552 276
450 11736 9624 7276 5281 3638 2347 1408 704 352
500 14215 11656 8813 6397 4407 2843 1706 853 426
600 20792 17049 12891 9356 6446 4158 2495 1248 624
700 29395 24104 18225 13228 9112 5879 3527 1764 882
750 34019 27896 21092 15309 10546 6804 4082 2041 1021
800 38900 31898 24118 17505 12059 7780 4668 2334 1167
900 46066 37774 28561 20730 14280 9213 5528 2764 1382
1000 60079 49265 37249 27036 18624 12016 7209 3605 1802
CV values for (class 300) - Vane Angle
Nominal bore 90¢ª 80¢ª 70¢ª 60¢ª 50¢ª 40¢ª 30¢ª 20¢ª 10¢ª
50 89 73 55 40 28 18 11 5 3
80 226 185 140 102 70 45 27 14 7
100 383 314 237 172 119 77 46 23 11
125 642 526 398 289 199 128 77 39 19
150 1147 941 711 516 356 229 138 69 34
200 2086 1711 1293 939 647 417 250 125 63
250 3515 2882 2179 1582 1090 703 422 211 105
300 5222 4282 3238 2350 1619 1044 627 313 157
350 5885 4826 3649 2648 1824 1177 706 353 177
400 7819 6412 4848 3519 2424 1564 938 469 235
450 9976 8180 6185 4489 3093 1995 1197 599 299
500 12083 9908 7491 5437 3746 2417 1450 725 362
600 17673 14492 10958 7953 5479 3535 2121 1060 530
700 24986 20489 15491 11244 7746 4997 2998 1499 750
750 28916 23711 17928 13012 8964 5783 3470 1735 867
800 33065 27113 20500 14879 10250 6613 3968 1984 992
900 39156 32108 24277 17620 12138 7831 4699 2349 1175
1000 51067 41875 31662 22980 15831 10213 6128 3064 1532
CV TABLES
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