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| Series | Code | Description |
|---|---|---|
| XC | XMBVR | NELES SEAT SUPPORTED VALVE SERIES XC, CLASS 300, REDUCED PORT |
The X-MBVR is a seat supported ball valve with reduced ball flow bore. Variety of metal seat constructions, body extensions, materials and other special features are offered. DN 80...200 (3"...8"). Pressure classes ANSI 150 and 300, DIN PN 10...40 are available as flanged versions.
Cv-values
| SIZE | Relative opening h | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DN | INCH | RN | 10 % | 20 % | 30 % | 40 % | 50 % | 60 % | 70 % | 80 % | 90 % | 100 % |
| RN = Reduction Number | ||||||||||||
| 80 | 3 | 0 | 2.44 | 5.81 | 11.2 | 17.9 | 28.1 | 42 | 60.9 | 89.7 | 154 | 234 |
| 100 | 4 | 0 | 4.24 | 12.9 | 24.7 | 41.4 | 65.1 | 99.5 | 147 | 222 | 394 | 666 |
| 150 | 6 | 0 | 11.7 | 30.2 | 53.1 | 84.4 | 129 | 192 | 273 | 395 | 673 | 1022 |
| 200 | 8 | 0 | 27.8 | 66.2 | 128 | 203 | 320 | 478 | 694 | 1022 | 1757 | 2665 |
Cv/d2-values
| SIZE | Relative opening h | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DN | INCH | RN | 10 % | 20 % | 30 % | 40 % | 50 % | 60 % | 70 % | 80 % | 90 % | 100 % |
| RN = Reduction Number | ||||||||||||
| 80 | 3 | 0 | 0.468 | 0.668 | 0.782 | 0.854 | 0.916 | 0.954 | 0.976 | 0.991 | 0.998 | 1 |
| 100 | 4 | 0 | 0.475 | 0.672 | 0.784 | 0.855 | 0.918 | 0.954 | 0.977 | 0.991 | 0.998 | 1 |
| 150 | 6 | 0 | 0.426 | 0.656 | 0.774 | 0.853 | 0.907 | 0.944 | 0.968 | 0.982 | 0.998 | 1 |
| 200 | 8 | 0 | 0.503 | 0.686 | 0.794 | 0.869 | 0.921 | 0.956 | 0.979 | 0.992 | 0.998 | 1 |
FL-values
| SIZE | Relative opening h | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DN | INCH | RN | 10 % | 20 % | 30 % | 40 % | 50 % | 60 % | 70 % | 80 % | 90 % | 100 % |
| RN = Reduction Number | ||||||||||||
| 80 | 3 | 0 | 0.91 | 0.91 | 0.91 | 0.91 | 0.9 | 0.89 | 0.87 | 0.83 | 0.76 | 0.71 |
| 100 | 4 | 0 | 0.91 | 0.91 | 0.91 | 0.9 | 0.89 | 0.87 | 0.84 | 0.79 | 0.72 | 0.64 |
| 150 | 6 | 0 | 0.91 | 0.91 | 0.91 | 0.9 | 0.89 | 0.88 | 0.86 | 0.82 | 0.75 | 0.7 |
| 200 | 8 | 0 | 0.91 | 0.91 | 0.91 | 0.9 | 0.88 | 0.86 | 0.82 | 0.77 | 0.7 | 0.64 |
XT-values
| SIZE | Relative opening h | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DN | INCH | RN | 10 % | 20 % | 30 % | 40 % | 50 % | 60 % | 70 % | 80 % | 90 % | 100 % |
| RN = Reduction Number | ||||||||||||
| 80 | 3 | 0 | 0.82 | 0.82 | 0.82 | 0.81 | 0.8 | 0.76 | 0.71 | 0.63 | 0.48 | 0.37 |
| 100 | 4 | 0 | 0.82 | 0.82 | 0.82 | 0.81 | 0.78 | 0.73 | 0.65 | 0.55 | 0.38 | 0.26 |
| 150 | 6 | 0 | 0.82 | 0.82 | 0.82 | 0.81 | 0.79 | 0.75 | 0.69 | 0.61 | 0.45 | 0.35 |
| 200 | 8 | 0 | 0.82 | 0.82 | 0.81 | 0.8 | 0.76 | 0.69 | 0.61 | 0.5 | 0.35 | 0.26 |
z-values
| SIZE | Relative opening h | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DN | INCH | RN | 10 % | 20 % | 30 % | 40 % | 50 % | 60 % | 70 % | 80 % | 90 % | 100 % |
| RN = Reduction Number | ||||||||||||
| 80 | 3 | 0 | 0.52 | 0.52 | 0.51 | 0.5 | 0.47 | 0.43 | 0.39 | 0.33 | 0.25 | 0.19 |
| 100 | 4 | 0 | 0.52 | 0.52 | 0.51 | 0.48 | 0.45 | 0.4 | 0.35 | 0.28 | 0.2 | 0.13 |
| 150 | 6 | 0 | 0.52 | 0.52 | 0.51 | 0.49 | 0.46 | 0.42 | 0.37 | 0.32 | 0.23 | 0.18 |
| 200 | 8 | 0 | 0.52 | 0.52 | 0.5 | 0.47 | 0.43 | 0.38 | 0.32 | 0.26 | 0.19 | 0.13 |
File creation day: 13.1.2025 (day.month.year)