Back to index

SeriesCodeDescription
M1M1NELES SEAT SUPPORTED VALVE SERIES M1

The XMBV is an update of the original MBV. XMBV is a seat supported valve, available with variety of metal seat constructions, body extensions, materials and other special features. Small sizes have one-piece body construction while larger sizes have split body construction. Pressure classes ANSI 150 and 300, DIN PN 10...40 are available as flanged versions. Size range is DN 25...200 (1"...8"). Pressure class ANSI 600, DIN PN 63…100 size range is DN25…DN100 (1"…4"). M1/M2 series valves' sizing calculations can be made with this Nelprof™ code as well. M1/M2 size range is DN 25...300 (1"...12").

Cv-values

SIZERelative opening h
DNINCHRN10 %20 %30 %40 %50 %60 %70 %80 %90 %100 %
RN = Reduction Number
25100.6761.512.814.897.711.5172646.6105
401.501.653.66.7511.918.628.445.575126250
50202.485.410.117.827.942.570.8123224490
652.504.028.7616.428.845.369123213387830
80305.9415.829.749.575.71091773085601160
100409.7225.948.6811241793135459892200
1255015407612719428048985215453440
1506022.459.8112187286413757131823945100
2008039.71061993315067321386241343819300
25010062.8167314523800116022443906709215200
30012089.924044974911501660330657571045222400

Cv/d2-values

SIZERelative opening h
DNINCHRN10 %20 %30 %40 %50 %60 %70 %80 %90 %100 %
RN = Reduction Number
25100.4680.6680.7820.8540.9160.9540.9760.9910.9981
401.500.4680.6680.7820.8540.9160.9540.9760.9910.9981
50200.4680.6680.7820.8540.9160.9540.9760.9910.9981
652.500.4750.6720.7840.8550.9180.9540.9770.9910.9981
80300.4750.6720.7840.8550.9180.9540.9770.9910.9981
100400.4260.6560.7740.8530.9070.9440.9680.9820.9981
125500.5030.6860.7940.8690.9210.9560.9790.9920.9981
150600.5030.6860.7940.8690.9210.9560.9790.9920.9981
200800.540.70.8020.8740.9250.9580.980.9920.9981
2501000.5280.6940.7980.8720.9230.9580.9790.9920.9981
3001200.5660.7120.8090.8790.9270.960.9810.9930.9981

FL-values

SIZERelative opening h
DNINCHRN10 %20 %30 %40 %50 %60 %70 %80 %90 %100 %
RN = Reduction Number
25100.910.910.90.880.860.810.770.710.610.43
401.500.910.910.90.880.850.80.740.670.570.41
50200.910.910.90.890.860.820.760.680.570.38
652.500.910.910.90.890.860.820.740.670.550.35
80300.910.910.90.880.850.810.740.670.550.36
100400.910.910.90.880.860.820.750.670.550.33
125500.910.910.90.880.860.820.750.670.550.33
150600.910.910.90.880.850.810.740.660.540.32
200800.910.910.90.880.850.810.730.650.530.31
2501000.910.910.90.880.850.810.730.640.530.29
3001200.910.910.90.880.850.810.730.640.520.28

XT-values

SIZERelative opening h
DNINCHRN10 %20 %30 %40 %50 %60 %70 %80 %90 %100 %
RN = Reduction Number
25100.820.820.80.760.690.60.480.370.240.12
401.500.820.820.80.750.670.570.420.30.190.11
50200.820.820.810.770.70.620.470.320.190.1
652.500.820.820.810.760.70.610.430.30.180.08
80300.820.820.790.740.670.580.430.30.180.09
100400.820.820.80.750.680.60.430.30.180.08
125500.820.820.80.750.680.60.430.30.180.08
150600.820.820.80.750.680.60.410.280.180.07
200800.820.820.80.750.680.60.410.280.170.06
2501000.820.820.80.750.680.590.40.270.170.06
3001200.820.820.80.750.680.60.390.270.170.05

z-values

SIZERelative opening h
DNINCHRN10 %20 %30 %40 %50 %60 %70 %80 %90 %100 %
RN = Reduction Number
25100.520.510.480.430.370.310.250.190.120.08
401.500.520.510.470.420.360.290.220.160.090.07
50200.520.510.480.440.390.320.240.170.090.07
652.500.520.510.480.430.380.320.220.160.090.07
80300.520.510.460.420.360.30.230.160.090.07
100400.520.510.470.420.370.310.230.160.090.07
125500.520.510.470.420.370.310.230.160.090.07
150600.520.510.470.420.370.310.220.150.090.06
200800.520.510.470.420.370.310.210.150.090.06
2501000.520.510.470.420.370.310.210.140.090.06
3001200.520.510.470.420.370.310.210.140.090.06

Back to index

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