FLOW METER PIPING REQUIREMENTS - Missouri S&T

1 ( 6 Engineering DataCatalog 23 Plant Engineering DataCatalog 23 Plant EngineeringData269 FLOW METER PIPING REQUIREMENTS Diameters of straight pipe required for various types of fl ow metersDiameter (D) = nominal Pipe SizeExample:13 Diameters of 6" pipe = 78"13 Diameters of 10" pipe = 130"Beta = (Bore )Bore is the smallest diameter of an orifi ce or nozzleUp = Upstream DiametersDown = Downstream DiametersFully Open Gate Valve(Unless Another Upstream Fitting Needs More)Fully Open Globe or Non-Return Valve (Unless Another Upstream Fitting Needs More)Partially Open Valve or RegulatorFLOW METERFLOW METERFLOW METERO rifi ce/NozzleBeta = = = = straight runs shown above are conservative minimums. Longer upstream straight pipe lengths provide better the indicated straight run is not available, Consult Factory. Detailed Factory analysis will require accurate fl uid data, fl ow data, and a sketch detailing the PIPING system 50 diameters upstream and 10 diameters downstream from the proposed METER straightening vanes can be used to reduce straight pipe length REQUIREMENTS , Consult Displacement and Coriolis Effect meters are not infl uenced by upstream and downstream fi Engineering DataCatalog 23 Plant EngineeringData268( 6 Engineering DataCatalog 23 Plant EngineeringData269 Diameter (D) = nominal Pipe SizeExample.))

2 13 Diameters of 6" pipe = 78"13 Diameters of 10" pipe = 130"Beta = (Bore )Bore is the smallest diameter of an orifi ce or nozzleUp = Upstream DiametersDown = Downstream DiametersTwo Elbows, > 10 Diameters, Fittings in Different PlanesTwo Elbows, < 10 Diameters, Fittings in Different PlanesReducer or Expander (Unless Another Upstream fi tting Needs More)Atmospheric Intake Orifi ce/NozzleBeta = = = (reducer), 2 (expander) Down222 Beta = (reducer), 4 (expander) Down224 VortexUp304525 Down555 ThermalUp154015 (reducer), 30 (expander) Down5105 (reducer), 10 (expander) TurbineUp101010 Down555 AnnubarUp9198 Down343 straight runs shown above are conservative minimums. Longer upstream straight pipe lengths provide better the indicated straight run is not available, Consult Factory. Detailed Factory analysis will require accurate fl uid data, fl ow data, and a sketch detailing the PIPING system 50 diameters upstream and 10 diameters downstream from the proposed METER straightening vanes can be used to reduce straight pipe length REQUIREMENTS , Consult Displacement and Coriolis Effect meters are not infl uenced by upstream and downstream fi METER PIPING REQUIREMENTS Diameters of straight pipe required for various types of fl ow meters ( 6 Engineering DataCatalog 23 Plant Engineering DataCatalog 23 Plant EngineeringData271 Diameter (D) = nominal Pipe SizeExample.)

3 13 Diameters of 6" pipe = 78"13 Diameters of 10" pipe = 130"Beta = (Bore )Bore is the smallest diameter of an orifi ce or nozzleUp = Upstream DiametersDown = Downstream DiametersOne Elbow, T, Y, or Tank Exit(Fittings in the Same Plane)Two Elbows(Fittings in the Same Plane)Long Radius Bends(Fittings in the Same Plane) FLOW METER (For Two Elbows >10D separation, use One Elbow Data) Orifi ce/NozzleBeta = = = = Down33 straight runs shown above are conservative minimums. Longer upstream straight pipe lengths provide better the indicated straight run is not available, Consult Factory. Detailed Factory analysis will require accurate fl uid data, fl ow data, and a sketch detailing the PIPING system 50 diameters upstream and 10 diameters downstream from the proposed METER straightening vanes can be used to reduce straight pipe length REQUIREMENTS , Consult Displacement and Coriolis Effect meters are not infl uenced by upstream and downstream fi METER PIPING REQUIREMENTS Diameters of straight pipe required for various types of fl ow meters