HomeAppsBusinessOrifice Gas FlowApps like Orifice Gas Flow Here are some great alternatives to Orifice Gas Flow by PetroSimple : HVAC Superheat Calculator ★4.1 Instrumentation Tools ★4.8 Instrumentation & Automation ★5.0 Piping Toolbox: ASME, Fitting ★3.3 Flange Bolt Size & Torque ★4.6 HydroWiz Pipe Flow Hydraulics ★4.6 HydroWiz Pipe Flow Hydraulics ★3.6 Pipe Diameter Calculator Lite ★5.0 McCalc® ★3.6 Dwyer Hydronic App ★3.6 Duct Calc Elite - Ductulator ★3.6 Hydro Calculations ★4.2 Piping Reference Pro ★3.7 Screw Thread Data Calculator ★4.6 Pipe Diameter Calculator ★4.0 Thread calculator ★4.4