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SeriesCodeDescription
LWLWLGANSI150SERIES LW HIGH PERFORMANCE TRIPLE ECCENTRIC METAL SEATED BUTTERFLY VALVE, PRESSURE CLASSES ASME150 & PN10-16

Patented Neles™ Neldisc™ triple-eccentric design is a key for meeting the challenges of control applications from simple to severe. The valve is very well suited for applications requiring large capacity and good rangeability at low differential pressures. Number of special constructions developed from the versatile Neldisc™ design offer a powerful tool for standardization. The same valve is excellent for shut-off in wide range of applications. Fully metallic seating is mechanically induced and does not rely on assistance from differential pressure. Temperature range available -200 .. +600 °C. Wafer (LW) and lug (LG) type bodies to fit ANSI 300 or DIN 40 pipe flanges.

Cv-values

SIZERelative opening h
DNINCHRN10 %20 %30 %40 %50 %60 %70 %80 %90 %100 %
RN = Reduction Number
803012.531.35175103137174208238245
100401740.473108152198255321413450
1255022.6190549.483.2381126.7182.8257356.5490.4684.9760
1506037.882.613921230643059682011161500
2008076.81682834326228741212166822683050
250100133.9292.8493752108315212110290539425300
300120191.6419.6707.91080155321833028416856527600
350140237.2519.2875.51336192227023748515869919400
400160308.1673.2113417312491350148576684907312200
4501804429661628248435745023696995911308917600
500200550120420303096445562618686119541628721900
6002407811708287943926320888212322169582305531000
70028050217573514577387851229915562190762233925100
750300706211842367060105901517920121254163035835300
800320934233546707939116751727924284317563876146700
9003601060265053009010132501961027560360404399053000
100040013923480696011832174002575236192473285776869600

Cv/d2-values

SIZERelative opening h
DNINCHRN10 %20 %30 %40 %50 %60 %70 %80 %90 %100 %
RN = Reduction Number
80300.1280.1510.1870.220.2560.2910.3150.3390.3640.383
100400.1170.1460.1810.2150.2520.2880.3130.3350.3590.376
125500.1170.1460.1810.2150.2520.2880.3130.3350.3590.376
150600.1280.1510.1870.220.2560.2910.3150.3390.3640.383
200800.0980.1280.160.1960.2360.280.3230.360.3890.41
2501000.0870.120.1530.1910.2330.2780.3220.3610.390.413
3001200.0860.1190.1520.190.2320.2780.3220.3610.3910.414
3501400.0860.1190.1530.1910.2330.2780.3230.3610.3920.414
4001600.0860.1190.1530.1910.2330.2780.3230.3610.3920.414
4501800.0860.1180.1510.190.2320.2770.3220.3620.3920.415
5002000.080.1140.1480.1870.230.2760.3220.3610.4130.415
6002400.0780.1140.1490.1890.2310.2780.3230.3610.3920.415
7002800.0780.1140.1490.1890.2310.2780.3230.3610.3920.415
7503000.0780.1140.1490.1890.2310.2780.3230.3610.3920.415
8003200.0780.1140.1490.1890.2310.2780.3230.3610.3920.415
9003600.0780.1140.1490.1890.2310.2780.3230.3610.3920.415
10004000.0780.1140.1490.1890.2310.2780.3230.3610.3920.415

FL-values

SIZERelative opening h
DNINCHRN10 %20 %30 %40 %50 %60 %70 %80 %90 %100 %
RN = Reduction Number
80300.870.850.830.80.770.730.690.660.630.62
100400.870.860.840.820.790.760.730.690.640.62
125500.870.860.850.830.810.780.740.690.620.6
150600.870.860.840.820.80.760.720.660.590.48
200800.870.850.840.820.790.750.70.630.540.43
2501000.870.850.830.810.770.730.680.610.50.38
3001200.870.850.830.810.770.730.680.610.510.38
3501400.870.850.840.820.790.750.70.630.540.42
4001600.870.850.840.820.790.750.70.630.540.43
4501800.870.850.830.810.770.730.670.60.490.36
5002000.870.850.830.810.770.730.670.60.490.36
6002400.870.850.830.810.770.730.670.60.50.37
7002800.870.860.840.810.770.730.690.650.610.58
7503000.870.860.830.810.760.720.660.610.560.51
8003200.870.860.840.810.770.720.650.590.520.44
9003600.870.860.840.820.780.730.670.620.560.49
10004000.870.860.840.810.770.730.660.60.540.46

XT-values

SIZERelative opening h
DNINCHRN10 %20 %30 %40 %50 %60 %70 %80 %90 %100 %
RN = Reduction Number
80300.530.530.530.510.470.420.370.340.30.3
100400.530.530.530.520.490.450.410.370.310.29
125500.530.530.530.530.520.480.430.370.30.27
150600.530.530.530.530.510.460.40.340.260.18
200800.530.530.530.520.490.440.380.310.230.15
2501000.530.530.530.520.480.420.360.280.20.12
3001200.530.530.530.520.480.420.360.280.20.12
3501400.530.530.530.520.490.440.380.310.230.15
4001600.530.530.530.520.490.440.380.310.230.15
4501800.530.530.530.520.470.410.350.270.190.11
5002000.530.530.530.520.470.410.350.270.190.11
6002400.530.530.530.520.470.410.350.280.20.12
7002800.530.530.530.520.470.410.370.320.280.25
7503000.530.530.530.520.460.40.340.290.240.2
8003200.530.530.530.520.470.40.330.260.210.16
9003600.530.530.530.520.480.420.350.290.240.19
10004000.530.530.530.520.470.410.340.270.220.17

z-values

SIZERelative opening h
DNINCHRN10 %20 %30 %40 %50 %60 %70 %80 %90 %100 %
RN = Reduction Number
80300.380.330.30.270.250.230.210.20.180.18
100400.380.350.320.290.260.240.230.210.190.18
125500.380.370.340.310.290.260.240.210.180.17
150600.380.360.330.30.270.250.230.20.170.14
200800.380.350.320.290.260.240.210.180.150.13
2501000.380.340.310.280.250.230.20.170.140.11
3001200.380.340.310.280.250.230.20.170.140.11
3501400.380.350.320.290.260.240.210.180.150.12
4001600.380.350.320.290.260.240.210.180.150.13
4501800.380.340.310.280.250.230.20.170.140.11
5002000.380.340.310.280.250.230.20.170.140.11
6002400.380.340.310.280.250.230.20.170.140.11
7002800.380.360.320.280.250.230.210.190.180.16
7503000.380.360.320.280.250.220.20.180.160.14
8003200.380.360.320.280.250.220.190.170.150.13
9003600.380.360.320.290.260.230.20.180.160.14
10004000.380.360.320.280.250.230.20.170.150.13

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File creation day: 22.4.2024 (day.month.year)