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Series | Code | Description |
D2 | QD2 | NELES TRUNNION MOUNTED BALL VALVE SERIES D2, CLASS 150-300, WITH Q-TRIM VARIANT (Q-TRIM) |
The D-series valve with Q-Trim is intended for applications where high Cv and excellent rangeability are required, combined with effective noise/cavitation attenuation. The Q-D2 valves are supplied as unidirectional one-seated version with specially designed ball control element to achieve improved noise/cavitation attenuation in gas, steam and liquid applications. The control seat is spring-loaded, capable of easing the contact on ball when throttling to eliminate friction, but assuring durable tightness at shut-off. Size range is DN 250...900 (10"...36") in pressure class ANSI 150, DN 100...900 (4"...36") in ANSI 300.
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 | 7.84 | 17.6 | 30.6 | 42.2 | 56.5 | 82 | 127 | 199 | 344 | 425 |
150 | 6 | 0 | 18.8 | 43.8 | 71.9 | 109 | 159 | 226 | 325 | 499 | 869 | 1170 |
200 | 8 | 0 | 32 | 76 | 124 | 188 | 274 | 390 | 561 | 863 | 1496 | 2020 |
250 | 10 | 0 | 54 | 126 | 207 | 313 | 457 | 650 | 935 | 1438 | 2502 | 3520 |
300 | 12 | 0 | 78 | 181 | 297 | 450 | 656 | 933 | 1343 | 2066 | 3590 | 5010 |
350 | 14 | 0 | 97 | 225 | 369 | 559 | 814 | 1159 | 1667 | 2565 | 4425 | 5780 |
400 | 16 | 0 | 129 | 301 | 494 | 747 | 1088 | 1549 | 2228 | 3428 | 5922 | 8090 |
450 | 18 | 0 | 177 | 413 | 679 | 1027 | 1497 | 2131 | 3065 | 4715 | 8185 | 11300 |
500 | 20 | 0 | 225 | 522 | 857 | 1297 | 1890 | 2690 | 3870 | 5953 | 10349 | 13700 |
600 | 24 | 0 | 345 | 799 | 1310 | 1984 | 2892 | 4117 | 5922 | 9109 | 15910 | 22300 |
700 | 28 | 0 | 395 | 918 | 1500 | 2280 | 3324 | 4731 | 6805 | 10468 | 18038 | 26300 |
750 | 30 | 0 | 500 | 1170 | 1920 | 2907 | 4237 | 6031 | 8675 | 13345 | 23123 | 34000 |
900 | 36 | 0 | 725 | 1690 | 2780 | 4204 | 6127 | 8721 | 12545 | 19298 | 33536 | 52300 |
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 | 0.066 | 0.066 | 0.1 | 0.14 | 0.16 | 0.17 | 0.18 | 0.19 | 0.205 | 0.205 |
150 | 6 | 0 | 0.066 | 0.066 | 0.1 | 0.14 | 0.16 | 0.17 | 0.18 | 0.19 | 0.205 | 0.205 |
200 | 8 | 0 | 0.066 | 0.066 | 0.1 | 0.14 | 0.16 | 0.17 | 0.18 | 0.19 | 0.205 | 0.205 |
250 | 10 | 0 | 0.066 | 0.066 | 0.1 | 0.14 | 0.16 | 0.17 | 0.18 | 0.19 | 0.205 | 0.205 |
300 | 12 | 0 | 0.066 | 0.066 | 0.1 | 0.14 | 0.16 | 0.17 | 0.18 | 0.19 | 0.205 | 0.205 |
350 | 14 | 0 | 0.066 | 0.066 | 0.1 | 0.14 | 0.16 | 0.17 | 0.18 | 0.19 | 0.205 | 0.205 |
400 | 16 | 0 | 0.066 | 0.066 | 0.1 | 0.14 | 0.16 | 0.17 | 0.18 | 0.19 | 0.205 | 0.205 |
450 | 18 | 0 | 0.066 | 0.066 | 0.1 | 0.14 | 0.16 | 0.17 | 0.18 | 0.19 | 0.205 | 0.205 |
500 | 20 | 0 | 0.066 | 0.066 | 0.1 | 0.14 | 0.16 | 0.17 | 0.18 | 0.19 | 0.205 | 0.205 |
600 | 24 | 0 | 0.066 | 0.066 | 0.1 | 0.14 | 0.16 | 0.17 | 0.18 | 0.19 | 0.205 | 0.205 |
700 | 28 | 0 | 0.066 | 0.066 | 0.1 | 0.14 | 0.16 | 0.17 | 0.18 | 0.19 | 0.205 | 0.205 |
750 | 30 | 0 | 0.066 | 0.066 | 0.1 | 0.14 | 0.16 | 0.17 | 0.18 | 0.19 | 0.205 | 0.205 |
900 | 36 | 0 | 0.066 | 0.066 | 0.1 | 0.14 | 0.16 | 0.17 | 0.18 | 0.19 | 0.205 | 0.205 |
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 | 0.91 | 0.92 | 0.93 | 0.93 | 0.93 | 0.92 | 0.89 | 0.83 | 0.7 | 0.63 |
150 | 6 | 0 | 0.91 | 0.92 | 0.93 | 0.93 | 0.92 | 0.91 | 0.88 | 0.81 | 0.67 | 0.56 |
200 | 8 | 0 | 0.91 | 0.92 | 0.93 | 0.93 | 0.92 | 0.91 | 0.88 | 0.82 | 0.68 | 0.57 |
250 | 10 | 0 | 0.91 | 0.92 | 0.93 | 0.93 | 0.92 | 0.91 | 0.88 | 0.8 | 0.66 | 0.53 |
300 | 12 | 0 | 0.91 | 0.92 | 0.93 | 0.93 | 0.92 | 0.91 | 0.88 | 0.8 | 0.66 | 0.54 |
350 | 14 | 0 | 0.91 | 0.92 | 0.93 | 0.93 | 0.93 | 0.91 | 0.89 | 0.82 | 0.69 | 0.6 |
400 | 16 | 0 | 0.91 | 0.92 | 0.93 | 0.93 | 0.92 | 0.91 | 0.89 | 0.82 | 0.68 | 0.57 |
450 | 18 | 0 | 0.91 | 0.92 | 0.93 | 0.93 | 0.92 | 0.91 | 0.88 | 0.8 | 0.65 | 0.54 |
500 | 20 | 0 | 0.91 | 0.92 | 0.93 | 0.93 | 0.92 | 0.9 | 0.88 | 0.8 | 0.64 | 0.54 |
600 | 24 | 0 | 0.91 | 0.92 | 0.93 | 0.93 | 0.92 | 0.9 | 0.87 | 0.78 | 0.62 | 0.49 |
700 | 28 | 0 | 0.91 | 0.92 | 0.93 | 0.93 | 0.92 | 0.91 | 0.89 | 0.82 | 0.68 | 0.55 |
750 | 30 | 0 | 0.91 | 0.92 | 0.93 | 0.93 | 0.92 | 0.9 | 0.88 | 0.8 | 0.65 | 0.5 |
900 | 36 | 0 | 0.91 | 0.92 | 0.93 | 0.93 | 0.92 | 0.9 | 0.88 | 0.8 | 0.64 | 0.47 |
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 | 0.82 | 0.83 | 0.83 | 0.83 | 0.82 | 0.79 | 0.68 | 0.5 | 0.32 | 0.25 |
150 | 6 | 0 | 0.82 | 0.83 | 0.83 | 0.82 | 0.8 | 0.75 | 0.63 | 0.46 | 0.29 | 0.21 |
200 | 8 | 0 | 0.82 | 0.83 | 0.83 | 0.82 | 0.8 | 0.75 | 0.64 | 0.47 | 0.3 | 0.22 |
250 | 10 | 0 | 0.82 | 0.83 | 0.83 | 0.82 | 0.8 | 0.74 | 0.61 | 0.44 | 0.28 | 0.2 |
300 | 12 | 0 | 0.82 | 0.83 | 0.83 | 0.82 | 0.8 | 0.74 | 0.62 | 0.45 | 0.28 | 0.2 |
350 | 14 | 0 | 0.82 | 0.83 | 0.83 | 0.83 | 0.81 | 0.76 | 0.66 | 0.48 | 0.31 | 0.23 |
400 | 16 | 0 | 0.82 | 0.83 | 0.83 | 0.82 | 0.8 | 0.76 | 0.65 | 0.47 | 0.3 | 0.22 |
450 | 18 | 0 | 0.82 | 0.83 | 0.83 | 0.82 | 0.8 | 0.74 | 0.61 | 0.44 | 0.27 | 0.2 |
500 | 20 | 0 | 0.82 | 0.83 | 0.83 | 0.82 | 0.8 | 0.73 | 0.6 | 0.43 | 0.26 | 0.2 |
600 | 24 | 0 | 0.82 | 0.83 | 0.83 | 0.82 | 0.79 | 0.72 | 0.57 | 0.4 | 0.24 | 0.18 |
700 | 28 | 0 | 0.82 | 0.83 | 0.83 | 0.82 | 0.8 | 0.76 | 0.65 | 0.48 | 0.3 | 0.21 |
750 | 30 | 0 | 0.82 | 0.83 | 0.83 | 0.82 | 0.8 | 0.73 | 0.6 | 0.43 | 0.27 | 0.18 |
900 | 36 | 0 | 0.82 | 0.83 | 0.83 | 0.82 | 0.8 | 0.73 | 0.6 | 0.43 | 0.26 | 0.17 |
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 | 0.56 | 0.55 | 0.54 | 0.52 | 0.51 | 0.48 | 0.44 | 0.38 | 0.3 | 0.27 |
150 | 6 | 0 | 0.56 | 0.55 | 0.54 | 0.52 | 0.49 | 0.46 | 0.42 | 0.36 | 0.28 | 0.24 |
200 | 8 | 0 | 0.56 | 0.55 | 0.54 | 0.52 | 0.49 | 0.46 | 0.42 | 0.37 | 0.29 | 0.24 |
250 | 10 | 0 | 0.56 | 0.55 | 0.53 | 0.52 | 0.49 | 0.46 | 0.41 | 0.36 | 0.28 | 0.22 |
300 | 12 | 0 | 0.56 | 0.55 | 0.53 | 0.52 | 0.49 | 0.46 | 0.42 | 0.36 | 0.28 | 0.22 |
350 | 14 | 0 | 0.56 | 0.55 | 0.54 | 0.52 | 0.5 | 0.47 | 0.43 | 0.37 | 0.29 | 0.25 |
400 | 16 | 0 | 0.56 | 0.55 | 0.54 | 0.52 | 0.49 | 0.47 | 0.43 | 0.37 | 0.29 | 0.24 |
450 | 18 | 0 | 0.56 | 0.55 | 0.53 | 0.51 | 0.49 | 0.46 | 0.41 | 0.35 | 0.28 | 0.22 |
500 | 20 | 0 | 0.56 | 0.55 | 0.53 | 0.51 | 0.49 | 0.46 | 0.41 | 0.35 | 0.27 | 0.23 |
600 | 24 | 0 | 0.56 | 0.55 | 0.53 | 0.51 | 0.48 | 0.45 | 0.4 | 0.34 | 0.26 | 0.2 |
700 | 28 | 0 | 0.56 | 0.55 | 0.54 | 0.52 | 0.49 | 0.47 | 0.43 | 0.37 | 0.29 | 0.23 |
750 | 30 | 0 | 0.56 | 0.55 | 0.53 | 0.51 | 0.49 | 0.46 | 0.41 | 0.35 | 0.27 | 0.21 |
900 | 36 | 0 | 0.56 | 0.55 | 0.53 | 0.51 | 0.49 | 0.46 | 0.41 | 0.35 | 0.27 | 0.2 |
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File creation day: 22.4.2024 (day.month.year)