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SeriesCodeDescription
LG Model DL800ANSI150FTC2SERIES LG HIGH PERFORMANCE TRIPLE ECCENTRIC METAL SEATED BUTTERFLY VALVE, MODEL D, PRESSURE CLASSES ASME150 & PN10-16, DRIVE SHAFT AND TRUNNION 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
803013.235.859.884.9115150184212231247
1004028.957.886.8121164222289376463482
1506081.5139212310440619880119015201630
200801202043124566489121300175022302400
250100223379580847120016902410326041504460
3001203415808871300184025903680498063406820
35014032966110451568220630344055529166007850
40016038581212811949278338365165679284019780
45018054610671690256836635093696289611150913500
500200683129620683157453963058540111351421716600
6002409841825289644166380892511990154502002523500

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
80300.860.850.820.780.740.70.670.640.610.58
100400.860.850.820.780.740.70.670.640.610.58
150600.850.830.810.780.750.70.640.580.50.45
200800.850.830.810.780.750.70.640.580.50.45
2501000.850.830.810.780.750.70.640.580.50.45
3001200.850.830.810.780.750.70.640.580.50.45
3501400.850.830.810.780.750.70.640.580.50.45
4001600.850.830.810.780.750.70.640.580.50.45
4501800.850.830.810.780.750.70.640.580.50.45
5002000.850.830.810.780.750.70.640.580.50.45
6002400.850.830.810.780.750.70.640.580.50.45

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
3501400.550.540.520.50.460.40.320.210.160.14
4001600.550.540.520.50.460.40.320.210.160.14
4501800.550.540.520.50.460.40.320.210.160.14
5002000.550.540.520.50.460.40.320.210.160.14
6002400.550.540.520.50.460.40.320.210.160.14

z-values

SIZERelative opening h
DNINCHRN10 %20 %30 %40 %50 %60 %70 %80 %90 %100 %
RN = Reduction Number
80300.420.360.310.280.260.240.220.190.170.16
100400.420.360.310.280.260.240.220.190.170.16
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)