BVT Sizing Table

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Inlet
Diameter		 Throat
Diameter		 Beta
Ratio		 Overall
Length		 Outlet
Diameter		 P = Differential Pressure of 100" wc (24.864 kPa)
Water Flow at 60 F (16 C)  =Headloss 
 (inches)  (mm)  (inches)    (mm)      (inches)    (mm)     (inches)    (mm)   US
GPM		 US
MGD		 LPS m3/d   RD(10-3)    in. 
wc		 kPa
4.000 101.6 1.800 45.72 0.4500 13.25 337 2.90 74 186.30 0.268 11.75 1015.5 132 11.6 2.88
4.000 101.6 2.400 60.96 0.6000 13.00 330 3.41 87 348.00 0.501 21.96 1896.97 246 8.3 2.06
4.000 101.6 2.900 73.66 0.7250 11.50 292 3.66 93 557.71 0.803 35.19 3040.07 394 5.0 1.24
6.000 152.4 2.700 68.58 0.4500 17.50 445 4.18 106 419.17 0.604 26.45 2284.90 197 12.4 3.08
6.000 152.4 3.600 91.44 0.6000 17.00 432 4.94 125 783.01 1.128 49.40 4268.18 369 8.8 2.19
6.000 152.4 4.350 110.49 0.7250 16.00 406 5.42 138 1254.84 1.807 79.17 6840.15 591 5.0 1.24
8.000 203.2 3.600 91.44 0.4500 21.50 546 5.63 143 745.19 1.073 47.01 4062.04 263 11.7 2.91
8.000 203.2 4.800 121.92 0.6000 21.00 533 6.65 169 1392.02 2.005 87.82 7587.88 492 8.2 2.04
8.000 203.2 5.800 147.32 0.7250 19.00 483 7.17 182 2230.84 3.212 140.74 12160.27 788 5.0 1.24
10.000 254.0 4.800 121.92 0.4800 25.50 648 7.15 182 1333.49 1.920 84.13 7268.82 377 11.2 2.78
10.000 254.0 5.800 147.32 0.5800 25.00 635 8.00 203 2013.24 2.899 127.02 10974.17 569 8.9 2.21
10.000 254.0 7.250 184.15 0.7250 22.00 559 8.92 227 3485.68 5.019 219.91 19000.42 985 5.1 1.27
12.000 304.8 5.800 147.32 0.4833 30.50 775 8.69 221 1948.56 2.806 122.94 10621.59 459 10.7 2.66
12.000 304.8 7.250 184.15 0.6042 30.00 762 9.93 252 3182.44 4.583 200.78 17347.45 749 7.9 1.96
12.000 304.8 8.700 220.98 0.7250 26.00 660 10.67 271 5019.38 7.228 316.67 27360.60 1182 5.0 1.24
14.000 355.6 6.300 160.02 0.4500 34.50 876 9.63 245 2282.15 3.286 143.98 12440.00 461 11.7 2.91
14.000 355.6 8.700 220.98 0.6214 33.50 851 11.67 296 4625.86 6.661 291.85 25215.54 934 7.4 1.84
14.000 355.6 10.150 257.81 0.7250 30.00 762 12.41 315 6831.93 9.838 431.03 37240.82 1379 5.0 1.24
16.000 406.4 7.250 184.15 0.4531 40.50 1029 10.95 278 3024.19 4.355 190.80 16484.86 534 11.9 2.96
16.000 406.4 10.150 257.81 0.6344 37.00 940 13.42 341 6344.86 9.137 400.30 34585.79 1120 7.0 1.74
16.000 406.4 11.600 294.64 0.7250 34.00 864 14.19 360 8923.34 12.850 562.98 48641.07 1576 4.9 1.22
18.000 457.2 8.700 220.98 0.4833 45.50 1156 13.03 331 4384.26 6.313 276.60 23898.57 688 10.2 2.54
18.000 457.2 10.150 257.81 0.5639 43.50 1105 14.27 362 6123.38 8.818 386.32 33378.48 961 8.4 2.09
18.000 457.2 13.050 331.47 0.7250 39.00 991 15.94 405 11293.60 16.263 712.52 61561.35 1773 4.8 1.19
20.000 508.0 10.150 257.81 0.5075 48.00 1219 14.79 376 6005.93 8.649 378.92 32738.31 848 9.7 2.41
20.000 508.0 11.600 294.64 0.5800 47.50 1207 16.01 407 8052.97 11.596 508.06 43896.68 1138 8.2 2.04
20.000 508.0 14.500 368.30 0.7250 41.00 1041 17.65 448 13942.72 20.078 879.65 76001.67 1970 4.8 1.19
24.000 609.6 11.600 294.64 0.4833 59.00 1499 17.38 441 7794.24 11.224 491.74 42486.34 918 9.9 2.46
24.000 609.6 14.500 368.30 0.6042 57.00 1448 19.85 504 12729.75 18.331 803.12 69389.80 1499 7.3 1.81
24.000 609.6 17.400 441.96 0.7250 49.00 1245 21.15 537 20077.52 28.912 1266.69 109442.40 2364 4.6 1.14
30.000 762.0 13.050 331.47 0.4350 71.50 1816 20.17 512 9764.84 14.061 616.07 53228.08 920 11.4 2.83
30.000 762.0 17.400 441.96 0.5800 67.00 1702 23.36 593 18119.18 26.092 1143.14 98767.54 1706 8.5 2.11
30.000 762.0 21.750 552.45 0.7250 62.00 1575 26.57 675 31371.12 45.174 1979.21 171003.75 2954 4.5 1.12
36.000 914.4 17.400 441.96 0.4833 85.50 2172 25.72 653 17537.04 25.253 1106.42 95594.27 1376 9.6 2.39
36.000 914.4 21.750 552.45 0.6042 84.00 2134 29.43 748 28641.95 41.244 1807.03 156127.05 2248 7.2 1.79
36.000 914.4 26.100 662.94 0.7250 74.00 1880 31.82 808 45174.41 65.051 2850.06 246245.40 3545 4.4 1.09
42.000 1066.8 18.900 480.06 0.4500 99.50 2527 28.53 725 20539.37 29.577 1295.83 111959.96 1382 10.8 2.69
42.000 1066.8 26.100 662.94 0.6214 97.00 2464 34.67 881 41632.76 59.951 2626.62 226939.87 2801 6.7 1.67
42.000 1066.8 30.450 773.43 0.7250 87.00 2210 37.06 941 61487.39 88.542 3879.25 335167.35 4136 4.3 1.07
48.000 1219.2 21.750 552.45 0.4531 113.00 2870 32.85 834 27217.75 39.194 1717.17 148363.75 1602 10.5 2.61
48.000 1219.2 30.450 773.43 0.6344 110.00 2794 40.26 1023 57103.74 82.229 3602.69 311272.09 3361 6.1 1.52
 48.000   1219.2   34.800   883.92   0.7250   98.00   2489   42.31   1075   80310.06   115.646   5066.78   437769.60   4727   4.3   1.07 
 
This sizing table can be used as a guide to aid the user in choosing the proper BVT for a given application.  Depending on the details of that application, a more appropriate selection, or a more accurate estimation of the performance of a given selection, may be available.  Wyatt Engineering encourages users to contact their local Wyatt representatives, or call us directly, for definitive sizing information.
     
Incompressible
Flow Relationships:		 Examples:
For a 12.00" x 8.700" BVT, find 		 Solutions: Found using the
"Incompressible Flow Relationships"
PN = 100 (QN/ Q)2 P at 10 000 US GPM PN = 100 (10 000/ 5 019.38)2 = 396.92" wc
HN = H (QN/ Q)1.88 H at 10 000 US GPM HN = 5.0 (10 000/ 5 019.38)1.88 = 18.3" wc
QN = Q ( P / 100)0.5 QN at 750" wc QN = 5 019.38 (750 / 100)0.5 = 13 746.14 US GPM
     
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