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SeriesCodeDescription
LG Model DL800ANSI150FTC1SERIES LG HIGH PERFORMANCE TRIPLE ECCENTRIC METAL SEATED BUTTERFLY VALVE, MODEL D, PRESSURE CLASSES ASME150 & PN10-16, THROUGH SHAFT DESIGN

Neles™ Neldisc™ Model D is a metal seated triple eccentric high performance butterfly valve that provides long lasting tight shut-off with excellent flow characteristics and high capacity. The L-Series are widely used in pulp & paper, chemical, petrochemical and refining industries. With nearly equal percentage characteristics and superior tightness, Neldisc triple eccentric butterfly valves operate both in control and tight shutoff applications. As a result of the unique triple offset geometry of Neldisc, the contact between disc and seat is mechanically induced and does not rely on assistance from differential pressure. This design also provides extended operational life in control, high cycle, high temperature and abrasive applications. Due to a number of special constructions, developed from the versatile Neldisc design, these valves offer a powerful tool for standardization and are truly high performance valves. The Neldisc high-performance butterfly valve is available in double flange (L6), wafer (LW) and lug (LG) body types with a range of materials and seat combinations suitable for service in a wide variety of applications including NACE MR0103 & MR0175.

Cv-values

SIZERelative opening h
DNINCHRN10 %20 %30 %40 %50 %60 %70 %80 %90 %100 %
RN = Reduction Number
803015.63962.485.3111142165195213220
100402553.678.5107139182232293346357
1506086.8136205298409558744100012001240
200801392193284786578961190161019301990
250100243382573833115015602080281033703470
3001203725858781280176023903190431051605320
35014037775410911522209528453801496058796110
40016048796513871976273537254964652678938180
45018064112271796250034674765643584671043910900
500200809150721773082427658427850103951280113400
60024011482119303443876060824211113144791738218800

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
100400.1280.1510.1870.220.2560.2880.3130.3350.3590.376
150600.0950.1260.1590.1950.2350.2790.3220.3560.3830.405
200800.0980.1280.160.1960.2360.280.3230.360.3890.41
2501000.0870.120.1530.1910.2330.2780.3220.3610.390.413
3001200.0860.1190.1520.190.2320.2780.3220.3610.390.413
3501400.0860.1190.1520.190.2320.2780.3220.3610.390.413
4001600.0860.1190.1520.190.2320.2780.3220.3610.390.413
4501800.0860.1190.1520.190.2320.2780.3220.3610.390.413
5002000.0860.1190.1520.190.2320.2780.3220.3610.390.413
6002400.0860.1190.1520.190.2320.2780.3220.3610.390.413

FL-values

SIZERelative opening h
DNINCHRN10 %20 %30 %40 %50 %60 %70 %80 %90 %100 %
RN = Reduction Number
80300.830.810.80.770.730.70.660.630.60.58
100400.830.810.80.770.730.70.660.630.60.58
150600.830.810.80.770.730.70.640.580.50.45
200800.830.810.80.770.730.70.640.580.50.45
2501000.830.810.80.770.730.70.640.580.50.45
3001200.830.810.80.770.730.70.640.580.50.45
3501400.830.810.80.770.730.70.640.580.50.45
4001600.830.810.80.770.730.70.640.580.50.45
4501800.830.810.80.770.730.70.640.580.50.45
5002000.830.810.80.770.730.70.640.580.50.45
6002400.830.810.80.770.730.70.640.580.50.45

XT-values

SIZERelative opening h
DNINCHRN10 %20 %30 %40 %50 %60 %70 %80 %90 %100 %
RN = Reduction Number
80300.550.540.520.50.460.40.320.210.160.14
100400.550.540.520.50.460.40.320.210.160.14
150600.550.540.520.50.460.40.320.210.160.14
200800.550.540.520.50.460.40.320.210.160.14
2501000.550.540.520.50.460.40.320.210.160.14
3001200.550.540.520.50.460.40.320.210.160.14
3501400.50.50.480.450.410.360.310.250.220.19
4001600.50.50.480.450.410.360.310.250.220.19
4501800.50.50.480.450.410.360.310.250.220.19
5002000.50.50.480.450.410.360.310.250.220.19
6002400.50.50.480.450.410.360.310.250.220.19

z-values

SIZERelative opening h
DNINCHRN10 %20 %30 %40 %50 %60 %70 %80 %90 %100 %
RN = Reduction Number
80300.410.340.290.260.240.220.20.190.170.16
100400.410.340.290.260.240.220.20.190.170.16
150600.40.360.330.30.280.250.220.20.170.15
200800.40.360.330.30.280.250.220.20.170.15
2501000.40.360.330.30.280.250.220.20.170.15
3001200.40.360.330.30.280.250.220.20.170.15
3501400.40.360.330.30.280.250.220.20.170.15
4001600.40.360.330.30.280.250.220.20.170.15
4501800.40.360.330.30.280.250.220.20.170.15
5002000.40.360.330.30.280.250.220.20.170.15
6002400.40.360.330.30.280.250.220.20.170.15

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