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| Series | Code | Description |
| LW | SLWLGANSI150 | SERIES LW HIGH PERFORMANCE TRIPLE ECCENTRIC METAL SEATED BUTTERFLY VALVE, PRESSURE CLASSES ASME150 & PN10-16, FLOW BALANCING TRIM S-DISC |
Neles™ S-disc™ is a flow balancing trim for Neldisc™ butterfly valves. A dynamically balanced Neldisc™ triple eccentric disc valve has up to 8 dB(A) noise reduction compared to the standard valve. This valve can push butterfly valve application envelope higher. The dynamic forces affecting the disc when throttling are transferred to the valve body, balancing dynamic torque and reducing bearing load. Valve itself is the standard Neldisc™, the only changed part is the clamp ring. Wafer (L1) and lug (L2) type bodies to fit ANSI 150 or DIN 10, 16 and 25 pipe flanges.
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 | 8.512 | 18.06 | 29.54 | 43.96 | 62.3 | 84.56 | 113.5 | 145.6 | 183.4 | 210 |
| 100 | 4 | 0 | 12.75094 | 27.13962 | 44.21887 | 65.7434 | 93.23396 | 126.3 | 170.8 | 217.6 | 276.1 | 310 |
| 125 | 5 | 0 | 21.33061 | 45.42041 | 74.07347 | 110.4 | 156 | 212.2 | 285.5 | 364 | 461.6 | 520 |
| 150 | 6 | 0 | 32 | 68 | 111 | 165 | 234 | 318 | 427 | 546 | 691 | 790 |
| 200 | 8 | 0 | 59.34783 | 126.9 | 206.3 | 305.9 | 434.6 | 590.7 | 792.5 | 1014 | 1284 | 1470 |
| 250 | 10 | 0 | 104 | 223 | 361 | 537 | 762 | 1035 | 1389 | 1776 | 2250 | 2580 |
| 300 | 12 | 0 | 140.7 | 301.3 | 488.9 | 726.2 | 1031 | 1400 | 1880 | 2403 | 3044 | 3500 |
| 350 | 14 | 0 | 179.7 | 385.8 | 625.7 | 929.7 | 1320 | 1792 | 2406 | 3076 | 3897 | 4500 |
| 400 | 16 | 0 | 226.8 | 487 | 789.1 | 1173 | 1664 | 2260 | 3034 | 3879 | 4914 | 5670 |
| 450 | 18 | 0 | 306.6 | 658.5 | 1068 | 1586 | 2250 | 3056 | 4104 | 5246 | 6646 | 7670 |
| 500 | 20 | 0 | 368 | 789.8 | 1281 | 1902 | 2700 | 3667 | 4924 | 6295 | 7975 | 9180 |
| 600 | 24 | 0 | 540 | 1158 | 1878 | 2791 | 3960 | 5379 | 7221 | 9233 | 11696 | 13500 |
| 700 | 28 | 0 | 507.3 | 1090 | 1775 | 2624 | 3740 | 5072 | 6796 | 8698 | 11031 | 12700 |
| 750 | 30 | 0 | 710.5 | 1527 | 2486 | 3676 | 5239 | 7103 | 9518 | 12181 | 15449 | 17800 |
| 800 | 32 | 0 | 833.5 | 1793 | 2918 | 4315 | 6150 | 8339 | 11174 | 14301 | 18184 | 20900 |
| 900 | 36 | 0 | 924 | 1986 | 3234 | 4781 | 6814 | 9240 | 12382 | 15846 | 20097 | 23100 |
| 1000 | 40 | 0 | 1199 | 2578 | 4198 | 6206 | 8844 | 11992 | 16070 | 20567 | 26083 | 30000 |
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 | 0.181 | 0.201 | 0.221 | 0.241 | 0.261 | 0.281 | 0.301 | 0.321 | 0.341 | 0.36 |
| 100 | 4 | 0 | 0.181 | 0.201 | 0.221 | 0.241 | 0.261 | 0.281 | 0.301 | 0.321 | 0.341 | 0.36 |
| 125 | 5 | 0 | 0.181 | 0.201 | 0.221 | 0.241 | 0.261 | 0.281 | 0.301 | 0.321 | 0.341 | 0.36 |
| 150 | 6 | 0 | 0.128 | 0.151 | 0.187 | 0.22 | 0.256 | 0.291 | 0.315 | 0.339 | 0.364 | 0.383 |
| 200 | 8 | 0 | 0.125 | 0.152 | 0.179 | 0.206 | 0.233 | 0.26 | 0.287 | 0.314 | 0.342 | 0.369 |
| 250 | 10 | 0 | 0.142 | 0.166 | 0.19 | 0.215 | 0.239 | 0.264 | 0.288 | 0.312 | 0.337 | 0.361 |
| 300 | 12 | 0 | 0.125 | 0.152 | 0.179 | 0.206 | 0.233 | 0.259 | 0.286 | 0.313 | 0.34 | 0.367 |
| 350 | 14 | 0 | 0.121 | 0.148 | 0.179 | 0.206 | 0.233 | 0.259 | 0.286 | 0.313 | 0.34 | 0.364 |
| 400 | 16 | 0 | 0.121 | 0.148 | 0.179 | 0.206 | 0.233 | 0.259 | 0.286 | 0.313 | 0.34 | 0.364 |
| 450 | 18 | 0 | 0.121 | 0.148 | 0.179 | 0.206 | 0.233 | 0.259 | 0.286 | 0.313 | 0.34 | 0.364 |
| 500 | 20 | 0 | 0.121 | 0.148 | 0.179 | 0.206 | 0.233 | 0.259 | 0.286 | 0.313 | 0.34 | 0.364 |
| 600 | 24 | 0 | 0.121 | 0.148 | 0.179 | 0.206 | 0.233 | 0.259 | 0.286 | 0.313 | 0.34 | 0.364 |
| 700 | 28 | 0 | 0.121 | 0.148 | 0.179 | 0.206 | 0.233 | 0.259 | 0.286 | 0.313 | 0.34 | 0.364 |
| 750 | 30 | 0 | 0.121 | 0.148 | 0.179 | 0.206 | 0.233 | 0.259 | 0.286 | 0.313 | 0.34 | 0.364 |
| 800 | 32 | 0 | 0.121 | 0.148 | 0.179 | 0.206 | 0.233 | 0.259 | 0.286 | 0.313 | 0.34 | 0.364 |
| 900 | 36 | 0 | 0.121 | 0.148 | 0.179 | 0.206 | 0.233 | 0.259 | 0.286 | 0.313 | 0.34 | 0.364 |
| 1000 | 40 | 0 | 0.121 | 0.148 | 0.179 | 0.206 | 0.233 | 0.259 | 0.286 | 0.313 | 0.34 | 0.364 |
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 | 0.86 | 0.86 | 0.86 | 0.86 | 0.85 | 0.84 | 0.83 | 0.79 | 0.74 | 0.7 |
| 100 | 4 | 0 | 0.86 | 0.86 | 0.86 | 0.86 | 0.86 | 0.85 | 0.84 | 0.82 | 0.77 | 0.75 |
| 125 | 5 | 0 | 0.86 | 0.86 | 0.86 | 0.86 | 0.86 | 0.85 | 0.84 | 0.81 | 0.76 | 0.73 |
| 150 | 6 | 0 | 0.86 | 0.86 | 0.86 | 0.86 | 0.85 | 0.84 | 0.83 | 0.8 | 0.75 | 0.72 |
| 200 | 8 | 0 | 0.86 | 0.86 | 0.86 | 0.86 | 0.85 | 0.84 | 0.83 | 0.79 | 0.74 | 0.7 |
| 250 | 10 | 0 | 0.86 | 0.86 | 0.86 | 0.86 | 0.85 | 0.84 | 0.82 | 0.77 | 0.71 | 0.66 |
| 300 | 12 | 0 | 0.86 | 0.86 | 0.86 | 0.86 | 0.85 | 0.84 | 0.83 | 0.78 | 0.73 | 0.68 |
| 350 | 14 | 0 | 0.86 | 0.86 | 0.86 | 0.86 | 0.85 | 0.84 | 0.83 | 0.79 | 0.74 | 0.7 |
| 400 | 16 | 0 | 0.86 | 0.86 | 0.86 | 0.86 | 0.85 | 0.84 | 0.83 | 0.8 | 0.75 | 0.71 |
| 450 | 18 | 0 | 0.86 | 0.86 | 0.86 | 0.86 | 0.85 | 0.84 | 0.83 | 0.79 | 0.74 | 0.69 |
| 500 | 20 | 0 | 0.86 | 0.86 | 0.86 | 0.86 | 0.85 | 0.84 | 0.83 | 0.79 | 0.74 | 0.7 |
| 600 | 24 | 0 | 0.86 | 0.86 | 0.86 | 0.86 | 0.85 | 0.84 | 0.83 | 0.79 | 0.74 | 0.69 |
| 700 | 28 | 0 | 0.86 | 0.86 | 0.86 | 0.86 | 0.86 | 0.85 | 0.85 | 0.84 | 0.82 | 0.79 |
| 750 | 30 | 0 | 0.86 | 0.86 | 0.86 | 0.86 | 0.86 | 0.85 | 0.84 | 0.82 | 0.78 | 0.74 |
| 800 | 32 | 0 | 0.86 | 0.86 | 0.86 | 0.86 | 0.86 | 0.85 | 0.84 | 0.82 | 0.77 | 0.74 |
| 900 | 36 | 0 | 0.86 | 0.86 | 0.86 | 0.86 | 0.86 | 0.85 | 0.84 | 0.83 | 0.8 | 0.77 |
| 1000 | 40 | 0 | 0.86 | 0.86 | 0.86 | 0.86 | 0.86 | 0.85 | 0.84 | 0.83 | 0.79 | 0.76 |
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 | 0.57 | 0.57 | 0.57 | 0.57 | 0.57 | 0.55 | 0.51 | 0.43 | 0.37 | 0.34 |
| 100 | 4 | 0 | 0.57 | 0.57 | 0.57 | 0.57 | 0.57 | 0.57 | 0.54 | 0.49 | 0.41 | 0.38 |
| 125 | 5 | 0 | 0.57 | 0.57 | 0.57 | 0.57 | 0.57 | 0.56 | 0.53 | 0.47 | 0.4 | 0.36 |
| 150 | 6 | 0 | 0.57 | 0.57 | 0.57 | 0.57 | 0.57 | 0.56 | 0.52 | 0.45 | 0.39 | 0.35 |
| 200 | 8 | 0 | 0.57 | 0.57 | 0.57 | 0.57 | 0.57 | 0.56 | 0.51 | 0.44 | 0.37 | 0.34 |
| 250 | 10 | 0 | 0.57 | 0.57 | 0.57 | 0.57 | 0.57 | 0.54 | 0.48 | 0.41 | 0.34 | 0.31 |
| 300 | 12 | 0 | 0.57 | 0.57 | 0.57 | 0.57 | 0.57 | 0.55 | 0.5 | 0.42 | 0.36 | 0.33 |
| 350 | 14 | 0 | 0.57 | 0.57 | 0.57 | 0.57 | 0.57 | 0.56 | 0.51 | 0.44 | 0.38 | 0.34 |
| 400 | 16 | 0 | 0.57 | 0.57 | 0.57 | 0.57 | 0.57 | 0.56 | 0.52 | 0.45 | 0.39 | 0.35 |
| 450 | 18 | 0 | 0.57 | 0.57 | 0.57 | 0.57 | 0.57 | 0.55 | 0.51 | 0.43 | 0.37 | 0.33 |
| 500 | 20 | 0 | 0.57 | 0.57 | 0.57 | 0.57 | 0.57 | 0.56 | 0.51 | 0.44 | 0.37 | 0.34 |
| 600 | 24 | 0 | 0.57 | 0.57 | 0.57 | 0.57 | 0.57 | 0.55 | 0.51 | 0.44 | 0.37 | 0.33 |
| 700 | 28 | 0 | 0.57 | 0.57 | 0.57 | 0.57 | 0.57 | 0.57 | 0.56 | 0.53 | 0.48 | 0.43 |
| 750 | 30 | 0 | 0.57 | 0.57 | 0.57 | 0.57 | 0.57 | 0.57 | 0.54 | 0.49 | 0.42 | 0.38 |
| 800 | 32 | 0 | 0.57 | 0.57 | 0.57 | 0.57 | 0.57 | 0.56 | 0.53 | 0.48 | 0.41 | 0.37 |
| 900 | 36 | 0 | 0.57 | 0.57 | 0.57 | 0.57 | 0.57 | 0.57 | 0.55 | 0.51 | 0.45 | 0.41 |
| 1000 | 40 | 0 | 0.57 | 0.57 | 0.57 | 0.57 | 0.57 | 0.57 | 0.55 | 0.5 | 0.43 | 0.39 |
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 | 0.49 | 0.45 | 0.42 | 0.38 | 0.35 | 0.31 | 0.27 | 0.25 | 0.22 | 0.21 |
| 100 | 4 | 0 | 0.49 | 0.47 | 0.43 | 0.4 | 0.36 | 0.33 | 0.29 | 0.27 | 0.24 | 0.23 |
| 125 | 5 | 0 | 0.49 | 0.46 | 0.43 | 0.39 | 0.36 | 0.32 | 0.29 | 0.26 | 0.23 | 0.22 |
| 150 | 6 | 0 | 0.49 | 0.46 | 0.42 | 0.39 | 0.35 | 0.32 | 0.28 | 0.25 | 0.23 | 0.22 |
| 200 | 8 | 0 | 0.49 | 0.45 | 0.42 | 0.38 | 0.35 | 0.31 | 0.28 | 0.25 | 0.22 | 0.21 |
| 250 | 10 | 0 | 0.49 | 0.44 | 0.41 | 0.37 | 0.34 | 0.3 | 0.26 | 0.24 | 0.21 | 0.2 |
| 300 | 12 | 0 | 0.49 | 0.45 | 0.42 | 0.38 | 0.34 | 0.3 | 0.27 | 0.24 | 0.22 | 0.21 |
| 350 | 14 | 0 | 0.49 | 0.45 | 0.42 | 0.38 | 0.35 | 0.31 | 0.28 | 0.25 | 0.23 | 0.21 |
| 400 | 16 | 0 | 0.49 | 0.46 | 0.42 | 0.39 | 0.35 | 0.32 | 0.28 | 0.25 | 0.23 | 0.21 |
| 450 | 18 | 0 | 0.49 | 0.45 | 0.42 | 0.38 | 0.35 | 0.31 | 0.27 | 0.24 | 0.22 | 0.21 |
| 500 | 20 | 0 | 0.49 | 0.45 | 0.42 | 0.38 | 0.35 | 0.31 | 0.28 | 0.25 | 0.22 | 0.21 |
| 600 | 24 | 0 | 0.49 | 0.45 | 0.42 | 0.38 | 0.35 | 0.31 | 0.27 | 0.25 | 0.22 | 0.21 |
| 700 | 28 | 0 | 0.49 | 0.48 | 0.44 | 0.42 | 0.38 | 0.35 | 0.32 | 0.29 | 0.26 | 0.24 |
| 750 | 30 | 0 | 0.49 | 0.47 | 0.43 | 0.4 | 0.36 | 0.33 | 0.29 | 0.27 | 0.24 | 0.23 |
| 800 | 32 | 0 | 0.49 | 0.46 | 0.43 | 0.4 | 0.36 | 0.33 | 0.29 | 0.26 | 0.24 | 0.22 |
| 900 | 36 | 0 | 0.49 | 0.47 | 0.44 | 0.41 | 0.37 | 0.34 | 0.31 | 0.28 | 0.25 | 0.24 |
| 1000 | 40 | 0 | 0.49 | 0.47 | 0.43 | 0.41 | 0.37 | 0.34 | 0.3 | 0.27 | 0.24 | 0.23 |
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File creation day: 13.1.2025 (day.month.year)