Centrifugal_pump sizing calculator on Engineering page is free to use. On this page it is explained how the free calculator works. The Pipe Flow Expert software is supplied with a. Flow Expert will calculate the pressure (pump head). Which uses 4 operational centrifugal pumps and two. Pump Selection Software. Other powerful features include a Total Head Calculator and the ability to send electronic 'Request for. Centrifugal pump design. Download Set A Light 3D Studio Keygen Mac. Photoshop CS3 Extended includes all of the features in Photoshop CS3 plus specialized features for editing 3. Set a light 3d studio torrent. Centrifugal Pump Power CalculationPUMP CALCULATIONS, DEFINITIONS, FORMULAS, CONVERSIONS| PUMP ENERGY INC • • > Tools Definitions Capacity Flow rate required, i.e., GPM, BPH, etc. Suction Pressure PSI or Head (ft.) Discharge Pressure PSI or Head (ft.) NPSH Available in absolute pressure Product Type liquid & its conditions (temperatures, viscosity, specific gravity, clean, solids, abrasive, corrosive) Type Centrifugal, rotary, reciprocating--gear, lobe, screw--horizontal, vertical, in-line, submersible, self priming- etc. Materials of Construction Desired materials and/or construction features, if any Driver Electric/Air/Hydraulic motor - gas/diesel engine - gas/steam turbine Formulas • Head (ft.) = (psi x 2.31) / sp. X.88) • PS1 = (head (ft.) x sp.gr) / 2.31 = (.49 x in. X Hg.) • Velocity (ft./sec.) = (0.4085 x gpm) / [i.d. (in.) of pipe] ^ 2 • BHP (Centrifugal) = (GMP x head (ft.) x sp. Gr.) / (3960 x pump eff) • BHP Positive Displacement = (GMP X PSI) / (1715 x pump eff.) Conversions Wt of Water 8.34 lb./gal. Or 62.37 lb./cu. Ft @ 60 degrees 1 lb./sq. Water (1.0 sp. ( c2joy ). Gr.) BPH x.7 GPM BPD x.0292 GPM 1 BBL. (petroleum) 42 gallons (U.S.) 1 ft. Water.433 PSI Atmospheric Press 14.7 psi or 33.9 fr. Fresh water @ sea level 1 inch of mercury (Hg) vacuum 1.133 ft. Water Dynamic Suctions Lift (ft.) Vacuum in inches of Hg. / (0.883 x sp. Gr.) Net Positivie Suction Head (NPSH) • NPSHr = head required @ the eye of the pump's impeller to prevent cavitation, a function of pump design. • NPSHa = head available from the suction side of the system, must always equal or exceed the required (NPSHr) to prevent cavication. NPSHa Factors Table Positive Negative 1) Absolute pressure on liquid 1) Vapor pressure of the liquid, absolute 2) Static suction head 2) Friction & entrance losses 3) Static suction lift Affinity Laws Effects on centrifugal pumps with limited change of speed (RPM) or impeller diameter.
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