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Series | Code | Description |
BWX | BKX150 | NELES BWX-SERIES, METAL SEATED DOUBLE ECCENTRIC VALVE, RATING ASME 150 (BWX_C) |
The type BWX_C refers to cryogenic and high temperatures. The values for the standard valve are based on single U-shape seat construction and for standard materials.
The valve is designed for control and on/off purposes. Temperature range starts from -273 ... +475 °C, pressure rating ANSI class 150, PN10 and PN16. Use BWX_C for for double flanged, lug and wafer.
Cv-values
SIZE | Relative opening h |
DN | INCH | RN | 10 % | 20 % | 30 % | 40 % | 50 % | 60 % | 70 % | 80 % | 90 % | 100 % |
RN = Reduction Number |
100 | 4 | 0 | 10 | 25 | 43 | 66 | 101 | 149 | 214 | 284 | 309 | 310 |
150 | 6 | 0 | 41 | 104 | 182 | 281 | 427 | 630 | 906 | 1207 | 1313 | 1314 |
200 | 8 | 0 | 89 | 222 | 392 | 603 | 915 | 1352 | 1943 | 2590 | 2816 | 2819 |
250 | 10 | 0 | 148 | 370 | 651 | 1002 | 1521 | 2245 | 3228 | 4304 | 4678 | 4683 |
300 | 12 | 0 | 234 | 588 | 1035 | 1593 | 2420 | 3574 | 5138 | 6850 | 7447 | 7453 |
350 | 14 | 0 | 312 | 783 | 1377 | 2119 | 3218 | 4754 | 6834 | 9111 | 9904 | 9913 |
400 | 16 | 0 | 390 | 977 | 1719 | 2645 | 4017 | 5933 | 8529 | 11372 | 12362 | 12373 |
450 | 18 | 0 | 496 | 1245 | 2190 | 3372 | 5121 | 7563 | 10872 | 14496 | 15758 | 15772 |
500 | 20 | 0 | 603 | 1513 | 2662 | 4098 | 6252 | 9193 | 13215 | 17619 | 19153 | 19170 |
600 | 24 | 0 | 938 | 2352 | 4138 | 6371 | 9676 | 14290 | 20541 | 27388 | 29773 | 29800 |
Cv/d2-values
SIZE | Relative opening h |
DN | INCH | RN | 10 % | 20 % | 30 % | 40 % | 50 % | 60 % | 70 % | 80 % | 90 % | 100 % |
RN = Reduction Number |
100 | 4 | 0 | 0.128 | 0.151 | 0.187 | 0.22 | 0.256 | 0.288 | 0.313 | 0.335 | 0.359 | 0.376 |
150 | 6 | 0 | 0.132 | 0.155 | 0.185 | 0.216 | 0.252 | 0.291 | 0.315 | 0.339 | 0.364 | 0.383 |
200 | 8 | 0 | 0.088 | 0.124 | 0.161 | 0.198 | 0.239 | 0.282 | 0.32 | 0.35 | 0.377 | 0.398 |
250 | 10 | 0 | 0.088 | 0.124 | 0.161 | 0.199 | 0.24 | 0.284 | 0.32 | 0.349 | 0.375 | 0.396 |
300 | 12 | 0 | 0.1 | 0.133 | 0.168 | 0.204 | 0.245 | 0.288 | 0.322 | 0.35 | 0.376 | 0.396 |
350 | 14 | 0 | 0.088 | 0.124 | 0.159 | 0.197 | 0.24 | 0.284 | 0.322 | 0.352 | 0.378 | 0.4 |
400 | 16 | 0 | 0.088 | 0.124 | 0.159 | 0.197 | 0.24 | 0.284 | 0.322 | 0.352 | 0.378 | 0.4 |
450 | 18 | 0 | 0.088 | 0.124 | 0.159 | 0.197 | 0.24 | 0.284 | 0.322 | 0.352 | 0.378 | 0.4 |
500 | 20 | 0 | 0.088 | 0.124 | 0.159 | 0.197 | 0.24 | 0.284 | 0.322 | 0.352 | 0.378 | 0.4 |
600 | 24 | 0 | 0.088 | 0.124 | 0.159 | 0.197 | 0.24 | 0.284 | 0.322 | 0.352 | 0.378 | 0.4 |
FL-values
SIZE | Relative opening h |
DN | INCH | RN | 10 % | 20 % | 30 % | 40 % | 50 % | 60 % | 70 % | 80 % | 90 % | 100 % |
RN = Reduction Number |
100 | 4 | 0 | 0.87 | 0.87 | 0.86 | 0.85 | 0.83 | 0.81 | 0.78 | 0.75 | 0.71 | 0.69 |
150 | 6 | 0 | 0.87 | 0.86 | 0.84 | 0.82 | 0.79 | 0.75 | 0.7 | 0.63 | 0.56 | 0.53 |
200 | 8 | 0 | 0.87 | 0.85 | 0.83 | 0.81 | 0.77 | 0.72 | 0.66 | 0.58 | 0.49 | 0.46 |
250 | 10 | 0 | 0.87 | 0.85 | 0.83 | 0.8 | 0.77 | 0.71 | 0.65 | 0.56 | 0.47 | 0.43 |
300 | 12 | 0 | 0.87 | 0.85 | 0.82 | 0.79 | 0.75 | 0.7 | 0.63 | 0.53 | 0.43 | 0.39 |
350 | 14 | 0 | 0.87 | 0.85 | 0.82 | 0.8 | 0.76 | 0.7 | 0.63 | 0.53 | 0.44 | 0.4 |
400 | 16 | 0 | 0.87 | 0.85 | 0.83 | 0.8 | 0.76 | 0.71 | 0.64 | 0.55 | 0.46 | 0.42 |
450 | 18 | 0 | 0.87 | 0.85 | 0.83 | 0.8 | 0.76 | 0.71 | 0.64 | 0.55 | 0.45 | 0.42 |
500 | 20 | 0 | 0.87 | 0.85 | 0.83 | 0.8 | 0.76 | 0.71 | 0.64 | 0.55 | 0.46 | 0.42 |
600 | 24 | 0 | 0.87 | 0.85 | 0.82 | 0.79 | 0.75 | 0.7 | 0.63 | 0.53 | 0.43 | 0.39 |
XT-values
SIZE | Relative opening h |
DN | INCH | RN | 10 % | 20 % | 30 % | 40 % | 50 % | 60 % | 70 % | 80 % | 90 % | 100 % |
RN = Reduction Number |
100 | 4 | 0 | 0.53 | 0.53 | 0.53 | 0.53 | 0.53 | 0.52 | 0.49 | 0.43 | 0.39 | 0.37 |
150 | 6 | 0 | 0.53 | 0.53 | 0.53 | 0.52 | 0.5 | 0.44 | 0.38 | 0.31 | 0.24 | 0.22 |
200 | 8 | 0 | 0.53 | 0.53 | 0.53 | 0.52 | 0.47 | 0.4 | 0.34 | 0.26 | 0.19 | 0.17 |
250 | 10 | 0 | 0.53 | 0.53 | 0.53 | 0.51 | 0.46 | 0.39 | 0.32 | 0.24 | 0.18 | 0.16 |
300 | 12 | 0 | 0.53 | 0.53 | 0.53 | 0.5 | 0.45 | 0.38 | 0.3 | 0.22 | 0.15 | 0.13 |
350 | 14 | 0 | 0.53 | 0.53 | 0.53 | 0.5 | 0.45 | 0.38 | 0.31 | 0.22 | 0.16 | 0.13 |
400 | 16 | 0 | 0.53 | 0.53 | 0.53 | 0.51 | 0.46 | 0.39 | 0.32 | 0.23 | 0.17 | 0.15 |
450 | 18 | 0 | 0.53 | 0.53 | 0.53 | 0.51 | 0.46 | 0.39 | 0.32 | 0.23 | 0.17 | 0.14 |
500 | 20 | 0 | 0.53 | 0.53 | 0.53 | 0.51 | 0.46 | 0.39 | 0.32 | 0.24 | 0.17 | 0.15 |
600 | 24 | 0 | 0.53 | 0.53 | 0.53 | 0.5 | 0.45 | 0.38 | 0.3 | 0.22 | 0.15 | 0.13 |
z-values
SIZE | Relative opening h |
DN | INCH | RN | 10 % | 20 % | 30 % | 40 % | 50 % | 60 % | 70 % | 80 % | 90 % | 100 % |
RN = Reduction Number |
100 | 4 | 0 | 0.38 | 0.38 | 0.36 | 0.33 | 0.31 | 0.29 | 0.26 | 0.24 | 0.22 | 0.21 |
150 | 6 | 0 | 0.38 | 0.35 | 0.32 | 0.29 | 0.27 | 0.24 | 0.21 | 0.18 | 0.16 | 0.15 |
200 | 8 | 0 | 0.38 | 0.34 | 0.31 | 0.28 | 0.25 | 0.23 | 0.2 | 0.17 | 0.14 | 0.13 |
250 | 10 | 0 | 0.38 | 0.34 | 0.31 | 0.27 | 0.25 | 0.22 | 0.19 | 0.16 | 0.14 | 0.13 |
300 | 12 | 0 | 0.38 | 0.33 | 0.3 | 0.27 | 0.24 | 0.21 | 0.18 | 0.15 | 0.13 | 0.12 |
350 | 14 | 0 | 0.38 | 0.33 | 0.3 | 0.27 | 0.24 | 0.22 | 0.18 | 0.15 | 0.13 | 0.12 |
400 | 16 | 0 | 0.38 | 0.34 | 0.3 | 0.27 | 0.25 | 0.22 | 0.19 | 0.16 | 0.13 | 0.12 |
450 | 18 | 0 | 0.38 | 0.34 | 0.3 | 0.27 | 0.25 | 0.22 | 0.19 | 0.16 | 0.13 | 0.12 |
500 | 20 | 0 | 0.38 | 0.34 | 0.3 | 0.27 | 0.25 | 0.22 | 0.19 | 0.16 | 0.13 | 0.12 |
600 | 24 | 0 | 0.38 | 0.33 | 0.3 | 0.27 | 0.24 | 0.21 | 0.18 | 0.15 | 0.13 | 0.12 |
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File creation day: 22.4.2024 (day.month.year)