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SeriesCodeDescription
LGSLWLGANSI300SERIES LG HIGH PERFORMANCE TRIPLE ECCENTRIC METAL SEATED BUTTERFLY VALVE, PRESSURE CLASSES ASME300 & PN25-40, FLOW BALANCING TRIM S-DISC

Neles™ S-disc™ is a flow balancing trim for Neldisc™ butterfly valves. A dynamically balanced Neldisc™ triple eccentric disc valve has up to 8 dB(A) noise reduction compared to the standard valve. This valve can push butterfly valve application envelope higher. The dynamic forces affecting the disc when throttling are transferred to the valve body, balancing dynamic torque and reducing bearing load. Valve itself is the standard Neldisc™, the only changed part is the clamp ring. Wafer (L1) and lug (L2) type bodies to fit ANSI 150 or DIN 10, 16 and 25 pipe flanges.

Cv-values

SIZERelative opening h
DNINCHRN10 %20 %30 %40 %50 %60 %70 %80 %90 %100 %
RN = Reduction Number
80308.51218.0629.5443.9662.384.56113.5145.6183.4210
1004012.7509427.1396244.2188765.743493.23396126.3170.8217.6276.1310
1506041.437585136197.6274.1359.1450.5532.3608.8680
2008070.64437145.5233337.4467.1613.7770.8909.910401160
250100129.9268.8429.9622.1862.411311421167819162130
300120195403645933129316972130251728753200
3501402495148231192165121672720321336704100
400160288.4595.3953.71381191225103151372342524750
450180356.4730.411751706235530983887458852315900
500200475.2975.215682277314341335186612269807840
600240564.5115618592701372849016150726082789290
700280106921023610588286701207015376176671866119100
750300108121223648594487621219715537178511885619300
9003601535301451798440124401731622056253442677027400

Cv/d2-values

SIZERelative opening h
DNINCHRN10 %20 %30 %40 %50 %60 %70 %80 %90 %100 %
RN = Reduction Number
80300.1810.2010.2210.2410.2610.2810.3010.3210.3410.36
100400.1810.2010.2210.2410.2610.2810.3010.3210.3410.36
150600.1250.1520.180.2070.2340.2620.2890.3170.3440.371
200800.1250.1520.1790.2060.2330.260.2870.3140.3420.369
2501000.1420.1660.190.2150.2390.2640.2880.3120.3370.361
3001200.1250.1520.1790.2060.2330.2590.2860.3130.340.367
3501400.1210.1480.1790.2060.2330.2590.2860.3130.340.364
4001600.1210.1480.1790.2060.2330.2590.2860.3130.340.364
4501800.1210.1480.1790.2060.2330.2590.2860.3130.340.364
5002000.1210.1480.1790.2060.2330.2590.2860.3130.340.364
6002400.1210.1480.1790.2060.2330.2590.2860.3130.340.364
7002800.1210.1480.1790.2060.2330.2590.2860.3130.340.364
7503000.1210.1480.1790.2060.2330.2590.2860.3130.340.364
9003600.1210.1480.1790.2060.2330.2590.2860.3130.340.364

FL-values

SIZERelative opening h
DNINCHRN10 %20 %30 %40 %50 %60 %70 %80 %90 %100 %
RN = Reduction Number
80300.860.860.860.860.860.850.830.790.70.64
100400.860.860.860.860.860.850.840.820.760.72
150600.860.860.860.860.850.840.830.810.770.73
200800.860.860.860.860.860.840.830.820.790.75
2501000.860.860.860.860.850.840.820.770.720.68
3001200.860.860.860.860.840.830.790.730.670.62
3501400.860.860.860.850.840.820.760.690.630.57
4001600.860.860.860.860.850.840.830.820.780.74
4501800.860.860.860.860.860.850.830.820.790.74
5002000.860.860.860.860.850.840.830.80.760.71
6002400.860.860.860.860.860.850.840.830.820.79
7002800.860.860.860.850.840.80.710.650.630.61
7503000.860.860.860.860.840.820.760.710.690.68
9003600.860.860.860.860.840.830.770.720.690.68

XT-values

SIZERelative opening h
DNINCHRN10 %20 %30 %40 %50 %60 %70 %80 %90 %100 %
RN = Reduction Number
80300.570.570.570.570.570.560.510.440.360.3
100400.570.570.570.570.570.570.540.490.420.38
150600.570.570.570.570.570.550.510.470.430.39
200800.570.570.570.570.570.550.520.480.440.4
2501000.570.570.570.570.570.530.480.430.380.34
3001200.570.570.570.570.550.50.440.390.330.29
3501400.570.570.570.570.540.480.410.350.30.24
4001600.570.570.570.570.570.550.510.470.430.39
4501800.570.570.570.570.570.560.520.480.440.4
5002000.570.570.570.570.570.540.50.460.420.37
6002400.570.570.570.570.570.570.540.510.470.44
7002800.570.570.570.570.530.450.370.320.30.29
7503000.570.570.570.570.550.490.420.370.350.34
9003600.570.570.570.570.550.490.420.380.350.35

z-values

SIZERelative opening h
DNINCHRN10 %20 %30 %40 %50 %60 %70 %80 %90 %100 %
RN = Reduction Number
80300.490.440.410.370.340.310.270.240.20.17
100400.490.460.420.390.350.330.290.260.230.21
150600.480.430.40.360.330.30.270.250.230.21
200800.490.440.40.360.330.30.280.260.240.22
2501000.480.430.380.340.320.280.260.230.210.19
3001200.470.420.370.330.30.270.240.210.190.16
3501400.460.410.360.330.290.260.230.20.170.14
4001600.490.430.40.360.330.30.280.260.240.22
4501800.490.440.40.360.330.310.280.260.240.22
5002000.480.430.390.350.330.290.270.250.230.21
6002400.490.440.410.370.340.320.290.270.260.24
7002800.470.430.370.330.290.250.210.180.170.16
7503000.480.430.390.340.30.260.230.210.190.19
9003600.480.430.390.340.30.270.230.210.20.19

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