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SeriesCodeDescription
LW Model DL800ANSI150FTC2_QSERIES LW HIGH PERFORMANCE TRIPLE ECCENTRIC METAL SEATED BUTTERFLY VALVE, MODEL D, PRESSURE CLASSES ASME150 & PN10-16, DRIVE SHAFT AND TRUNNION DESIGN, FLOW BALANCING TRIM Q-DISC

Neles™ Q-Disc™ is a flow balancing trim for Neldisc™ Model D butterfly valves. Q-Disc design features extreme flow balancing for control service. Dynamic torque effect from the flow has been significantly reduced allowing high pressure drop service. With Q-Disc, the pressure is distributed more evenly resulting in lower torque requirement and more effective contol of flow. Q-Disc design also provides market leading noise reduction even up to 12 dB. The Q-Disc add-on is integrated to the standard Neles™ Neldisc™ LW, LG and L6 Model D disc. The valve itself is the Neles™ Neldisc™ Model D metal seated triple eccentric high performance butterfly valve.

Cv-values

SIZERelative opening h
DNINCHRN10 %20 %30 %40 %50 %60 %70 %80 %90 %100 %
RN = Reduction Number
803011.832.250.663.774.590113140170196
1004019.850.776.489.2102.5125162218281330
1506044771211762423304736608801100
2008080.8141222323444606869121016202020
25010014625640358680511001570220029303660
300120229400629915126017202460343045805720

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

FL-values

SIZERelative opening h
DNINCHRN10 %20 %30 %40 %50 %60 %70 %80 %90 %100 %
RN = Reduction Number
80300.860.860.860.850.820.780.740.70.650.63
100400.860.860.860.850.820.780.740.70.650.63
150600.860.860.860.850.820.780.740.70.650.63
200800.860.860.860.850.820.780.740.70.650.63
2501000.860.860.860.850.820.780.740.70.650.63
3001200.860.860.860.850.820.780.740.70.650.63

XT-values

SIZERelative opening h
DNINCHRN10 %20 %30 %40 %50 %60 %70 %80 %90 %100 %
RN = Reduction Number
80300.580.580.570.540.490.450.420.390.350.3
100400.580.580.570.540.490.450.420.390.350.3
150600.580.580.570.540.490.450.420.390.350.3
200800.580.580.570.540.490.450.420.390.350.3
2501000.580.580.570.540.490.450.420.390.350.3
3001200.580.580.570.540.490.450.420.390.350.3

z-values

SIZERelative opening h
DNINCHRN10 %20 %30 %40 %50 %60 %70 %80 %90 %100 %
RN = Reduction Number
80300.520.50.450.410.380.350.310.260.220.2
100400.520.50.450.410.380.350.310.260.220.2
150600.520.50.450.410.380.350.310.260.220.2
200800.520.50.450.410.380.350.310.260.220.2
2501000.520.50.450.410.380.350.310.260.220.2
3001200.520.50.450.410.380.350.310.260.220.2

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