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SeriesCodeDescription
L2SLANSI300SERIES L2 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
80306.0812.921.131.444.560.481.1104131150
1004010.923.237.856.279.7108146186236265
150603980128186258338424501573640
20080671382213204435827318639861100
2501001002073314796648711094129214751640
300120160331530767106313951751206923632630
3501402354857771125155820452567303334643870
4001602865919481372190024943131369842244700
45018038178712601824252633174163491856176300
50020045594115082182302239674980588267197500
600240575118819032755381450086286742584819400

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

FL-values

SIZERelative opening h
DNINCHRN10 %20 %30 %40 %50 %60 %70 %80 %90 %100 %
RN = Reduction Number
80300.860.860.860.860.860.860.850.840.810.78
100400.860.860.860.860.860.860.850.840.810.78
150600.860.860.860.860.860.850.840.820.790.75
200800.860.860.860.860.860.850.840.830.80.77
2501000.860.860.860.860.860.850.840.830.810.78
3001200.860.860.860.860.860.840.830.820.780.74
3501400.860.860.860.860.850.840.830.80.750.71
4001600.860.860.860.860.860.840.830.820.780.74
4501800.860.860.860.860.850.840.830.810.760.72
5002000.860.860.860.860.850.840.830.810.770.73
6002400.860.860.860.860.860.850.840.830.810.78

XT-values

SIZERelative opening h
DNINCHRN10 %20 %30 %40 %50 %60 %70 %80 %90 %100 %
RN = Reduction Number
80300.570.570.570.570.570.570.560.520.470.43
100400.570.570.570.570.570.570.560.520.470.43
150600.570.570.570.570.570.560.520.480.440.41
200800.570.570.570.570.570.560.530.490.450.42
2501000.570.570.570.570.570.570.540.50.470.43
3001200.570.570.570.570.570.550.510.470.430.4
3501400.570.570.570.570.570.540.50.450.410.37
4001600.570.570.570.570.570.550.510.470.430.4
4501800.570.570.570.570.570.550.50.460.420.38
5002000.570.570.570.570.570.550.510.470.430.39
6002400.570.570.570.570.570.570.540.50.470.44

z-values

SIZERelative opening h
DNINCHRN10 %20 %30 %40 %50 %60 %70 %80 %90 %100 %
RN = Reduction Number
80300.490.470.430.410.370.340.310.280.250.23
100400.490.470.430.40.370.340.310.280.250.24
150600.490.440.40.360.330.310.280.260.240.22
200800.490.440.410.370.340.310.280.270.250.23
2501000.490.440.410.370.340.320.290.270.250.24
3001200.490.440.40.360.330.30.280.260.240.22
3501400.480.430.390.350.330.290.270.250.230.21
4001600.490.440.40.360.330.30.280.260.240.22
4501800.480.430.390.350.330.30.270.250.230.21
5002000.490.430.40.360.330.30.270.250.230.22
6002400.490.440.410.370.340.320.290.270.250.24

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