100 Permanent Pressure Loss of Differential Pressure 90

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100 Permanent Pressure Loss, % of Differential Pressure 90 80 70 60 50 40

100 Permanent Pressure Loss, % of Differential Pressure 90 80 70 60 50 40 30 20 10 0 0, 00 0, 10 0, 20 0, 30 0, 40 0, 50 Beta Ratio, Bore Diameter(d)/Pipe Diameter(D) Square Edge Orifice Permanent Pressure Loss versus β 0, 60 0, 70 0, 80

100 Permanent Pressure Loss, % of Differential Pressure 90 80 70 60 50 40

100 Permanent Pressure Loss, % of Differential Pressure 90 80 70 60 50 40 30 20 10 0 0, 00 0, 10 0, 20 0, 30 0, 40 0, 50 Beta Ratio, Bore Diameter(d)/Pipe Diameter(D) Square Edge Orifice 0, 60 Flow Nozzle Permanent Pressure Loss versus β 0, 70 0, 80

100 Permanent Pressure Loss, % of Differential Pressure 90 80 70 60 50 40

100 Permanent Pressure Loss, % of Differential Pressure 90 80 70 60 50 40 30 20 10 0 0, 00 0, 10 0, 20 Square Edge Orifice 0, 30 0, 40 0, 50 Beta Ratio, Bore Diameter(d)/Pipe Diameter(D) Flow Nozzle Permanent Pressure Loss versus β 0, 60 0, 70 Flow Nozzle with Diffuser 0, 80

100 Permanent Pressure Loss, % of Differential Pressure 90 80 70 60 50 40

100 Permanent Pressure Loss, % of Differential Pressure 90 80 70 60 50 40 30 20 10 0 0, 00 0, 10 Square Edge Orifice 0, 20 0, 30 0, 40 0, 50 Beta Ratio, Bore Diameter(d)/Pipe Diameter(D) Flow Nozzle with Diffuser Permanent Pressure Loss versus β 0, 60 0, 70 Venturi (15 degree divergent) 0, 80

100 Permanent Pressure Loss, % of Differential Pressure 90 80 70 60 50 40

100 Permanent Pressure Loss, % of Differential Pressure 90 80 70 60 50 40 30 20 10 0 0, 00 Square Edge Orifice 0, 10 0, 20 Flow Nozzle 0, 30 0, 40 0, 50 Beta Ratio, Bore Diameter(d)/Pipe Diameter(D) Flow Nozzle with Diffuser 0, 60 Venturi (7 degree divergent) Permanent Pressure Loss versus β 0, 70 0, 80 Venturi (15 degree divergent)