SPECIFICATIONS
2(50)3(76)11(52.7)12(52.7)114.25(362)12.62(321)7.50(178)7(178)5.50(140)16(7)
3(80)4(102)12(57.0)11(48.3)18(457)15.12(384)9(229)8.12(206)6(152)34(16)
4(100)6(152)16(70.3)11(48.3)19.25(489)18.25(464)11(279)9.50(241)6.50(165)49(22)
6(150)8(203)16(70.3)16(70.3)26.50(673)23.75(603)13.5(343)12.75(324)8.50(216)93(42)
8(200)10(254)16(70.3)16(70.3)32.50(826)28.50(724)16(406)15.25(387)10.75(273)137(62)
10(250)12(305)16(70.3)16(70.3)37.75(959)34.50(876)19(483)18(457)12.50(318)186(85) 12(300)14(356)16(70.3)16(70.3)42.75(1086)39.12(994)21(533)20.62(524)15(381)260(118)
12(300)0.5051.1153.130
0.870.506.8713.325.252.782.6135175 1.000.587.3914.327.156.688.8145188
Flow Capacity Calculation
Flowcapacityvalueslistedabovearebasedonfullopen valvesat100%overpressure.Readtheflowcapacityat 100%overpressuredirectlyfromthetableabove.Use linearsted.Iftheallowableoverpressureislessthan 100%,modifytheflowcapacityusingtheappropriate“C” factorfromthetable.Ifallowableoverpressureismore than100%,consultyourGrothRepresentative.
Calculatethepercentageoverpressurebythefollowing formula.Notethatallpressuresaregaugepressure expressedinthesameunitsofmeasure.
Pf=Flowingpressure
Ps=Setpressure %OP=[(Pf-Ps)/Ps]x100
Calculateflowcapacityatlessthan100%overpressure accordingtothefollowingexample.
Example Flow Capacity Calculation
Example to find “C” factor from table: Read“C”factorfor75%overpressureatintersectionof row70andcolumn5
“C”factorat75%OP=0.87
6”Model1220A1.ReadflowcapacityatsetpressurefromtableFlow=112,000SCFH
4InWCsetpressure[Ps]2.Calculateoverpressure%OP=[(7-4)/4]x100=75%
7InWCflowingpressure[Pf]3.Read“C”factorfromtable“C”=0.87
4.CalculateflowcapacityFlow=0.87x112,000=97,440SCFH “C”FactorTable %OP0123456789 100.420.430.440.450.460.460.470.480.490.50 200.510.520.520.530.540.550.560.560.570.58 300.590.590.600.610.610.620.630.640.640.65 400.660.660.670.680.680.690.700.700.710.72 500.720.730.730.740.750.750.760.770.770.78 600.780.790.800.800.810.810.820.820.830.84 700.840.850.850.860.860.870.880.880.890.89 800.900.900.910.910.920.920.930.930.940.94 900.950.950.960.960.970.970.980.990.991.00 AirFlowCapacityat100%Overpressure(DoubleSetPressure)
222.160.190.370.711.482.333.804.93 504.900.290.561.072.233.505.727.42 757.350.360.691.312.724.286.999.10
Flow Capacity Calculation
Flowcapacityvalueslistedabovearebasedonfullopen valvesat100%overpressure.Readtheflowcapacityat 100%overpressuredirectlyfromthetableabove.Use linearinterpolationifthesetpressureisnotlisted.If theallowableoverpressureislessthan100%,modify theflowcapacityusingtheappropriate“C”factorfrom thetable.Ifallowableoverpressureismorethan100%, consultyourGrothRepresentative.
Calculatethepercentageoverpressurebythefollowing formula.Notethatallpressuresaregaugepressure expressedinthesameunitsofmeasure.
Pf=Flowingpressure
Ps=Setpressure
%OP=[(Pf-Ps)/Ps]x100
Calculateflowcapacityatlessthan100%overpressure accordingtothefollowingexample.
Example Flow Capacity Calculation
Example to find “C” factor from table:
Read“C”factorfor75%overpressureatintersectionof row70andcolumn5
“C”factorat75%OP=0.87
6”Model1220A1.ReadflowcapacityatsetpressurefromtableFlow=3,140NCMH
100mmWCSetPressure[Ps]2.Calculateoverpressure%OP=[(175-100)/100]x100=75% 175mmWCFlowingPressure[Pf]3.Read“C”factorfromtable“C”=0.87
4.CalculateflowcapacityFlow=0.87x3,140=2,732NCMH
Flow Capacity Calculation
Flowcapacityvalueslistedabovearebasedonfullopen valvesat100%over-vacuum.Readtheflowcapacityat 100%over-vacuumdirectlyfromthetableabove.Use linearinterpolationifthesetvacuumisnotlisted.If theallowableover-vacuumislessthan100%,modify theflowcapacityusingtheappropriate“C”factorfrom thetable.Ifallowableover-vacuumismorethan100%, consultyourGrothRepresentative.
Calculatethepercentageover-vacuumbythefollowing formula.Notethatallpressuresaregaugepressure expressedinthesameunitsofmeasure.
Pf=Flowingpressure
Ps=Setpressure
%OV=[(Pf-Ps)/Ps]x100
Calculateflowcapacityatlessthan100%over-vacuum accordingtothefollowingexample.
Example Flow Capacity Calculation
“C”FactorTable %OV0123456789 100.420.430.440.450.460.460.470.480.490.50 200.510.520.520.530.540.550.560.560.570.58 300.590.590.600.610.610.620.630.640.640.65 400.660.660.670.680.680.690.700.700.710.72 500.720.730.730.740.750.750.760.770.770.78 600.780.790.800.800.810.810.820.820.830.84 700.840.850.850.860.860.870.880.880.890.89 800.900.900.910.910.920.920.930.930.940.94 900.950.950.960.960.970.970.980.990.991.00
Example to find
6”Model1220A1.ReadflowcapacityatsetvacuumfromtableFlow=74,000SCFH
4InWCSetVacuum[Ps]2.Calculateover-vacuum%OV=[(7-4)/4]x100=75%
7InWCFlowingVacuum[Pf]3.Read“C”factorfromtable“C”=0.87
4.CalculateflowcapacityFlow=0.87x74,000=64,380SCFH
222.160.130.290.450.981.712.583.65 504.900.200.440.681.482.583.885.48 757.350.240.530.831.813.154.746.70
Flow Capacity Calculation
Flowcapacityvalueslistedabovearebasedonfullopen valvesat100%over-vacuum.Readtheflowcapacityat 100%over-vacuumdirectlyfromthetableabove.Use linearinterpolationifthesetvacuumisnotlisted.If theallowableover-vacuumislessthan100%,modify theflowcapacityusingtheappropriate“C”factorfrom thetable.Ifallowableover-vacuumismorethan100%, consultyourGrothRepresentative.
Calculatethepercentageover-vacuumbythefollowing formula.Notethatallpressuresaregaugepressure expressedinthesameunitsofmeasure.
Pf=Flowingpressure
Ps=Setpressure %OV=[(Pf-Ps)/Ps]x100
Calculateflowcapacityatlessthan100%over-vacuum accordingtothefollowingexample.
Example Flow Capacity Calculation
Example to find “C” factor from table: Read“C”factorfor75%over-vacuumatintersectionof row70andcolumn5 “C”factorat75%OV=0.87
6”Model1220A1.ReadflowcapacityatsetvacuumfromtableFlow=2,080NCMH 100mmWCSetVacuum[Ps]2.Calculateover-vacuum%OV=[(175-100)/100]x100=75% 175mmWCFlowingVacuum[Pf]3.Read“C”factorfromtable“C”=0.87
4.CalculateflowcapacityFlow=0.87x2,080=1,810NCMH
Flow Capacity Calculation
Flowcapacityvalueslistedabovearebasedonfullopen valvesat100%overpressure.Readtheflowcapacityat 100%overpressuredirectlyfromthetableabove.Use linearinterpolationifthesetpressureisnotlisted.If theallowableoverpressureislessthan100%,modify theflowcapacityusingtheappropriate“C”factorfrom thetable.Ifallowableoverpressureismorethan100%, consultyourGrothRepresentative.
Calculatethepercentageoverpressurebythefollowing formula.Notethatallpressuresaregaugepressure expressedinthesameunitsofmeasure.
Pf=Flowingpressure
Ps=Setpressure %OP=[(Pf-Ps)/Ps]x100
Calculateflowcapacityatlessthan100%overpressure accordingtothefollowingexample.
Example Flow Capacity Calculation
Example to find “C” factor from table: Read“C”factorfor75%overpressureatintersectionof row70andcolumn5 “C”factorat75%OP=0.83
6”Model1221B1.ReadflowcapacityatsetpressurefromtableFlow=448,000SCFH 4psigSetPressure[Ps]2.Calculateoverpressure%OP=[(7-4)/4]x100=75% 7psigFlowingPressure[Pf]3.Read“C”factorfromtable“C”=0.83
4.CalculateflowcapacityFlow=0.83x448,000=371,840SCFH
AirFlowCapacityat100%Overpressure(DoubleSetPressure)
barg2(50)3(80)4(100)6(150)8(200)10(250)12(300) 0.070.821.572.726.1610.115.521.7 0.100.991.893.287.4512.218.826.2 0.151.232.364.099.2815.223.432.6 0.201.432.764.8010.917.927.438.3 0.251.623.145.4412.320.331.143.4 0.301.793.486.0413.722.534.548.2 0.351.953.816.6115.024.637.852.7 0.402.104.127.1416.226.640.957.0 0.452.254.417.6617.428.543.861.1 0.502.394.708.1618.530.446.665.1 0.552.524.988.6419.632.249.468.9 0.602.655.259.1020.633.952.172.6 0.702.895.7610.022.737.257.279.7
Flow Capacity Calculation
Flowcapacityvalueslistedabovearebasedonfullopen valvesat100%overpressure.Readtheflowcapacityat 100%overpressuredirectlyfromthetableabove.Use linearinterpolationifthesetpressureisnotlisted.If theallowableoverpressureislessthan100%,modify theflowcapacityusingtheappropriate“C”factorfrom thetable.Ifallowableoverpressureismorethan100%, consultyourGrothRepresentative.
Calculatethepercentageoverpressurebythefollowing formula.Notethatallpressuresaregaugepressure expressedinthesameunitsofmeasure.
Pf=Flowingpressure
Ps=Setpressure %OP=[(Pf-Ps)/Ps]x100
Calculateflowcapacityatlessthan100%overpressure accordingtothefollowingexample.
Example Flow Capacity Calculation
“C”FactorTable %OP0123456789 10•••ConsultFactory••• 200.270.290.300.320.330.350.360.380.390.40 300.420.430.440.450.470.480.490.500.510.52 400.530.540.550.560.570.580.590.600.610.62 500.630.640.650.660.670.670.680.690.700.71 600.720.720.730.740.750.760.760.770.780.79 700.800.800.810.820.820.830.840.850.850.86 800.870.870.880.890.900.900.910.920.920.93 900.940.940.950.960.960.970.970.980.991.00
Example to find “C” factor from table: Read“C”factorfor75%overpressureatintersectionof row70andcolumn5
“C”factorat75%OP=0.83
6”Model1221B1.ReadflowcapacityatsetpressurefromtableFlow=16,200NCMH 0.4bargSetPressure[Ps]2.Calculateoverpressure%OP=[(0.7-0.4)/0.4]x100=75% 0.7bargFlowingPressure[Pf]3.Read“C”factorfromtable“C”=0.83
4.CalculateflowcapacityFlow=0.83x16,200=13,446NCMH
psig2(50)3(80)4(100)6(150)8(200)10(250)12(300) 1.0013.830.552.9120197302422 1.1014.531.955.4126206316442 1.2015.133.257.7131215330460 1.3015.734.559.9136223342478
Flow Capacity Calculation
Flowcapacityvalueslistedabovearebasedonfullopen valvesat100%over-vacuum.Readtheflowcapacityat 100%over-vacuumdirectlyfromthetableabove.Use linearinterpolationifthesetpressureisnotlisted.If theallowableover-vacuumislessthan100%,modify theflowcapacityusingtheappropriate“C”factorfrom thetable.Ifallowableover-vacuumismorethan100%, consultyourGrothRepresentative.
Calculatethepercentageover-vacuumbythefollowing formula.Notethatallpressuresaregaugepressure expressedinthesameunitsofmeasure.
Pf=Flowingpressure
Ps=Setpressure
%OV=[(Pf-Ps)/Ps]x100
Calculateflowcapacityatlessthan100%over-vacuum accordingtothefollowingexample.
Example Flow Capacity Calculation
factor from table: Read“C”factorfor75%over-vacuumatintersectionof row70andcolumn5
6”Model1222B1.ReadflowcapacityatsetvacuumfromtableFlow=166,000SCFH 2psigSetVacuum[Ps]2.Calculateover-vacuum%OV=[(3.50-2.0)/2.0]x100=75% 3.5psigFlowingVacuum[Pf]3.Read“C”factorfromtable“C”=0.83
4.CalculateflowcapacityFlow=0.83x166,000=137,780SCFH
AirFlowCapacityat100%Over-Vacuum(DoubleSetVacuum) 1000NormalCubicMetersperHourat0°C
barg2(50)3(80)4(100)6(150)8(200)10(250)12(300) 0.070.410.901.553.525.778.8712.4 0.100.481.061.834.166.8310.514.6 0.110.511.111.924.357.1411.015.3 0.120.531.151.994.537.4311.415.9 0.130.551.202.074.697.7011.816.5 0.140.561.242.144.857.9612.217.1 0.150.581.272.205.008.2112.617.6
0.240.701.542.676.059.9315.221.3
Flow Capacity Calculation
Flowcapacityvalueslistedabovearebasedonfullopen valvesat100%over-vacuum.Readtheflowcapacityat 100%over-vacuumdirectlyfromthetableabove.Use linearinterpolationifthesetpressureisnotlisted.If theallowableover-vacuumislessthan100%,modify theflowcapacityusingtheappropriate“C”factorfrom thetable.Ifallowableover-vacuumismorethan100%, consultyourGrothRepresentative.
Calculatethepercentageover-vacuumbythefollowing formula.Notethatallpressuresaregaugepressure expressedinthesameunitsofmeasure.
Pf=Flowingpressure
Ps=Setpressure
%OV=[(Pf-Ps)/Ps]x100
Calculateflowcapacityatlessthan100%over-vacuum accordingtothefollowingexample.
Example Flow Capacity Calculation
Example to find “C” factor from table:
Read“C”factorfor72%over-vacuumatintersectionof row40andcolumn2
“C”factorat42%OV=0.55
6”Model1222B1.Readflowcapacityatsetvacuumfrom table Flow=4,530NCMH
0.12bargSetVacuum[Ps]2.Calculateover-vacuum%OV=[(0.17-0.12)/0.12]x100= 42%
0.17bargFlowingVacuum [Pf]
3.Read“C”factorfromtable“C”=0.55
4.CalculateflowcapacityFlow=0.55x4,530=2,491NCMH
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