#34;InstruCalc software to calculate the size of the valve controlling the flow of the relief device. Out of this program can be used to produce sheets for the calculating of and the summary of preparation And using the sheet as a Data for production use report. Features and specifications InstruCalc: Control Valve sizing: with gas , the liquid and two-phase . Forecast noise and cavity trim using standard ANSI / ISA 75. 01. 01. Relief Valve sizing: valves , rupture disc valve tank . Flow Element Salivary Pressure drop in liquid and gas pipes: calculation using the formula Darcy equation of Colebrook and the Crane Technical Paper. Waterhammer calculations: the closure Waterhammer , push up and force support . Using the formula Joukowski. Changes in the latest version InstruCalc 6.2.0: Technique for showing Cavitation in orifices and venturi restriction meters (Flow Elements Expanded vortex meter sizes available - up to size 36 (Flow Elements Incorporation of Z-factor in gas-flow for sizing Flow Elements option for Natural Gas Aga8 in Flow Elements Added option to Specify outlet pressure of orifice Flow Element Text box at the bottom of the calculation for comments Added such as exit angle of venture meters PRV option to calculate flow rate Program provide for a known size RV Clarify status to show more clearly flashing, Cavitation and choking of control valves Outlet of control valves - flow velocity at outlet flange Allow for input instead of Specific Gravity Density in all Programs #34;