Pumps
Design of pumping systems and pipelines. With centrifugal pumps, displacement pumps, cavitation, fluid viscosity, head and pressure, power consumption and more.
Alternating Pumps
Securing a system and achieve equal wear by alternating pumps in parallel.
BEP - the Best Efficiency Point of a Pump
BEP is where the pump is most efficient.
Boiling Fluids - Max Suction Flow Velocities
Recommended max suction flow velocity when pumping boiling fluids.
Boiling Liquids - Max Pumping Flow Velocities
Recommended max flow velocity on the delivery (pressure) side when pumping boiling liquids.
Cavitation
Cavitation occurs in fluid flow systems where the local static pressures are below the fluids vapor pressure.
Centrifugal Pump Standards
International centrifugal pump design and dimension standards.
Centrifugal Pumps
An introduction to Centrifugal Pumps.
Centrifugal Pumps - Capacity Modulation
Modulating pumps to adapt capacities to variable process demands.
Centrifugal Pumps - Influence of Viscosity
Hydrodynamic losses through pumps depends on fluid viscosities.
Centrifugal Pumps - Minimum Flow
Minimum continuous flow to prevent flashing in centrifugal pumps.
Centrifugal Pumps - Shut-Off Head
Centrifugal pumps and maximum shut-off head.
Centrifugal Pumps - Speed Torque Curve
The characteristic speed torque curves for centrifugal pumps.
Centrifugal Pumps - Stable and Unstable Flow
The characteristics of stable and unstable flow.
Condensate Pumping
High temperatures and danger of impeller cavitation is the major challenge for condensate pumping in steam systems.
Efficiency in Pumps or Fans
The overall pump and fan efficiency is the ratio power gained by the fluid to the shaft power supplied.
Light Oil Pumping - Flow Velocities
Recommended max. flow velocities on the delivery side when pumping light oils.
Light Oil Suction - Flow Velocities
Recommended max. suction flow velocities when pumping light oils.
Liquids - Vapor Pressures
Vapor and saturation pressure for some common liquids.
Mechanical Energy Equation vs. Bernoulli Equation
The Mechanical Energy Equation compared to the Extended Bernoulli Equation.
Positive Displacement Pumps
Introduction tutorial to positive displacement pumps basic operating principles.
Power Gained by Fluid from Pump or Fan
Calculate the power gained by fluid from an operating pump or fan.
Pressure to Head Unit Converter
Pressure vs. head units - like lb/in2, atm, inches mercury, bars, Pa and more.
Pressure Units - Online Converter
Convert between pressure units like Pa, bar, atmosphere, pound square feet, psi and more.
Pump - Temperature Rise vs. Volume Flow
Calculate temperature rise vs. volume flow in pumps.
Pump Power Calculator
Calculate pumps hydraulic and shaft power.
Pumping Water - Energy Cost Calculator
Calculate the energy cost of pumping water.
Pumping Water - Required Horsepower
Horsepower required to pump water.
Pumps - Affinity Laws
Turbo machines affinity laws can be used to calculate volume capacity, head or power consumption in centrifugal pumps when changing speed or wheel diameters.
Pumps - Classifications
Centrifugal pumps vs. positive displacement pumps.
Pumps - Head vs. Pressure
Converting head (ft or m) to pressure (psi or bar, kg/cm2) and vice versa.
Pumps - NPSH (Net Positive Suction Head)
An introduction to pumps and the Net Positive Suction Head (NPSH).
Pumps - Parallel vs. Serial Arrangement
Adding head and flowrate for pumps arranged in parallel vs. serial.
Pumps - Specific Speed
Characterizing of impeller types in pumps in a unique and coherent manner.
Pumps - Suction Head vs. Altitude
The suction head of a water pump is affected by its operating altitude.
Pumps - Suction Specific Speed
Suction Specific Speed can be used to determine stable and reliable operations for pumps with max efficiency without cavitation.
Pumps and Fans - Energy Equation and Head Rise
The energy equation can be used to calculate the head rise in pumps and fans.
Pumps vs. Compressors, Blowers and Fans
The difference between pumps, compressors, blowers and fans.
Pumps, Fans and Turbines - Horsepower
British Horse Power as used for pumps, fans and turbines - and how to convert to other units.
Static Pressure vs. Head
Static pressure vs. pressure head in fluids.
System Curve and Pump Performance Curve
Utilize the system curve and the pump performance curve to select the proper pump for a particular application.
Turbo Machines - Specific Work done by Pumps, Compressors or Fans
Calculate specific work done by pumps, fans, compressors or turbines.
Viscosity - Absolute (Dynamic) vs. Kinematic
Vicosity is a fluid's resistance to flow and can be valued as dynamic (absolute) or kinematic.
Viscosity Converting Chart
Convert between viscosity units like Centiposes, milliPascal, CentiStokes and SSU.
Viscous Liquids - Max. Delivery Flow Velocities
Recommended max. flow velocities on delivery sides of pumps in viscous systems.
Viscous Liquids - Max. Suction Flow Velocities
Recommended max. pump suction flow velocity for viscous fluids.
Volume Flow - Online Unit Converter
Convert between volume flow units like gpm, liter/sec, cfm, m3/h.
Water - Max. Suction Flow Velocities vs. Pipe Size
Recommended max. water flow velocities on suction sides of pumps.
Water Flow - Max. Delivery Velocities vs. Pipe Size
Recommended maximum flow velocities in water systems on the delivery side of the pump.
Water Pump Calculator
Water pump calculations.
