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SeriesCodeDescription
LGLWLGANSI300SERIES LG HIGH PERFORMANCE TRIPLE ECCENTRIC METAL SEATED BUTTERFLY VALVE, PRESSURE CLASSES ASME300 & PN25-40

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
1506044.0322691.20968151223.3318.7442.4603.9793.610621300
2008077.74648162266.7396.3564.77851071140418722300
250100117.8247.6407.2604.2861.811981634214728413500
300120178.4373.4614.1911.8129718052469323643275280
3501402525288701290183525503480458061527470
400160166.255410531717238231023878454351525540
450180204.368112942111292838144767558463336810
500200273.391117312824391751026377747084729110
6002403121040197632244472582472808528967210400
700280104621913610535376151058214442190072553031000
750300108322693739554378851095814954196812643632100
9003601569328754168030114231587421663285103829646500

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
150600.0880.1240.1610.1980.2390.2880.3130.3350.3590.376
200800.0880.1240.1610.1990.240.2840.320.3490.3750.396
2501000.10.1330.1680.2040.2450.2880.3220.350.3760.396
3001200.0880.1240.1590.1970.240.2840.3220.3520.3780.4
3501400.0880.1240.1590.1970.240.2840.3220.3520.3780.4
4001600.0880.1240.1590.1970.240.2840.3220.3520.3780.4
4501800.0880.1240.1590.1970.240.2840.3220.3520.3780.4
5002000.0880.1240.1590.1970.240.2840.3220.3520.3780.4
6002400.0880.1240.1590.1970.240.2840.3220.3520.3780.4
7002800.0880.1240.1590.1970.240.2840.3220.3520.3780.4
7503000.0880.1240.1590.1970.240.2840.3220.3520.3780.4
9003600.0890.1240.1590.1970.240.2840.3220.3520.3780.4

FL-values

SIZERelative opening h
DNINCHRN10 %20 %30 %40 %50 %60 %70 %80 %90 %100 %
RN = Reduction Number
80300.860.840.820.790.760.730.690.650.620.61
100400.860.850.830.810.780.760.730.690.620.6
150600.860.850.830.810.790.760.720.660.580.51
200800.860.850.830.810.790.760.720.670.580.51
2501000.860.850.830.820.790.760.720.670.590.52
3001200.860.850.830.810.780.750.720.660.570.51
3501400.860.850.830.810.780.750.710.650.560.49
4001600.860.850.830.810.780.760.730.710.680.67
4501800.860.850.840.810.780.760.740.710.690.68
5002000.860.850.830.80.780.750.730.70.670.66
6002400.860.860.840.820.80.770.750.730.720.71
7002800.860.850.830.810.780.750.70.640.550.48
7503000.860.850.830.810.790.760.720.670.580.52
9003600.860.850.830.810.790.760.720.660.580.51

XT-values

SIZERelative opening h
DNINCHRN10 %20 %30 %40 %50 %60 %70 %80 %90 %100 %
RN = Reduction Number
80300.530.530.520.510.470.420.370.330.30.29
100400.530.530.530.520.50.450.410.370.310.28
150600.530.530.530.520.50.450.40.340.270.19
200800.530.530.530.520.50.450.40.350.270.2
2501000.530.530.530.520.510.460.40.350.280.21
3001200.530.530.530.520.50.450.40.340.260.19
3501400.530.530.530.520.50.440.390.330.250.17
4001600.530.530.530.520.50.450.420.390.360.35
4501800.530.530.530.520.50.460.420.40.370.36
5002000.530.530.530.520.490.440.410.380.350.34
6002400.530.530.530.520.510.490.450.420.40.39
7002800.530.530.530.520.490.430.380.320.240.15
7503000.530.530.530.520.50.450.40.350.270.2
9003600.530.530.530.520.50.450.40.340.270.2

z-values

SIZERelative opening h
DNINCHRN10 %20 %30 %40 %50 %60 %70 %80 %90 %100 %
RN = Reduction Number
80300.380.320.290.270.250.230.210.190.180.18
100400.380.340.30.280.260.240.230.210.180.17
150600.380.340.30.280.260.240.220.20.170.15
200800.380.340.310.280.260.240.220.20.170.15
2501000.380.340.310.290.270.250.230.20.170.15
3001200.380.340.30.280.260.240.220.190.160.15
3501400.380.330.30.280.260.240.220.190.160.15
4001600.380.350.310.280.260.240.230.220.210.2
4501800.380.350.310.280.260.250.230.220.210.2
5002000.380.350.30.280.260.240.230.220.20.19
6002400.380.360.320.290.270.260.240.230.220.22
7002800.380.330.30.280.260.240.220.190.160.15
7503000.380.340.310.280.260.240.220.20.170.15
9003600.380.340.310.280.260.240.220.20.170.15

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