Pumps
Piping systems and pumps - centrifugal pumps, displacement pumps - cavitation, viscosity, head and pressure, power consumption and more
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Alternating Pumps
Secure the system and achieve equal wear by alternate pumps in parallel
Best Efficiency Point - BEP
Maximum designed pump efficiency
Boiling Fluids - Recommended Suction Flow Velocity
Recommended flow velocity for the pump suction side
Cavitation - an Introduction
Cavitation may occur in fluid flow systems where local static pressure is below the vapor pressure
Centrifugal Pump Speed-Torque Curve
Centrifugal pumps characteristics - speed torque curve
Centrifugal Pumps
An introduction to Centrifugal Pumps
Centrifugal Pumps - Minimum Flow
Centrifugal pumps and minimum continuous flow
Centrifugal Pumps and Standards
Centrifugal pumps design and dimensions standards
Centrifugal Pumps and Viscosity
When a liquid flow through a pump, hydrodynamic losses depends on fluid viscosity
Classifications of Pumps
Selecting between Centrifugal Pumps and Positive Displacement Pumps
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Condensate Pumping
High temperatures and danger of impeller cavitation is the major challenge of condensate pumping
Converting Pump Head to Pressure
Converting head (ft or m) to pressure (psi or bar, kg/cm2) and vice versa
Discharge Regulation of Centrifugal Pumps
Adapting pump capacities to process demand
Dynamic, Absolute and Kinematic Viscosity
An introduction to dynamic, absolute and kinematic viscosity and how to convert between CentiStokes (cSt), CentiPoises (cP), Saybolt Universal Seconds (SSU), degree Engler and more
Equation of Mechanical Energy
The equation of mechanical energy in terms of Energy per Unit Mass, Energy per Unit Volume and Energy per Unit Weight involving head
Flow Units Converter
Convert between volume flow units - gpm, liter/sec, cfm, m3/h - online flow unit converter
Head Rise and the Energy Equation for a Pump or a Fan
The energy equation can be used to calculate the actual head rise in a pump or fan
Light Oils - Recommended Suction Flow Velocity
Recommended flow velocity for the pump suction side
NEMA Frame Assignments
NEMA Frame Assignments
NPSH - Net Positive Suction Head
A definition and an introduction to Net Positive Suction Head - NPSH
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Positive Displacement Pumps
An introduction tutorial to the basic operating principles of positive displacement pumps
Power Gained by Fluid from Pumps or Fans
The power gained by fluid from operating pumps or fans
Pressure Units Online Converter
Convert between common pressure units like Pa, bar, atmosphere, pound square feet, psi and more
Pressure to Head Unit Converter
Converting between common units for pressure and head - lb/in2, atm, inches mercury, bars, Pa and more ..
Pump Affinity Laws
Turbo machines affinity laws are used to calculate volume capacity, head or power consumption in centrifugal pumps when changing speed - rpm - or wheel diameters
Pump Power Calculator
Calculate pump hydraulic and shaft power?
Pump and Fan Efficiency
Overall pump and fan efficiency is the ratio - power actually gained by the fluid - to shaft power supplied
Pumping Boiling Liquids - Delivery Flow Velocities
Recommended flow velocity required on the delivery side of the pump in systems with boiling liquids
Pumping Light Oils - Delivery Flow Velocities
Recommended flow velocity required for light oil systems on the delivery side of the pump
Pumping Water - Horsepower Requirements
Horsepower requirements pumping water
Pumps - Specific Suction Speed
Specific Suction Speed may be used to determine what general pump design to use for maximum efficiency
Pumps in Parallel or Serial Connection
For pumps in serial - add heads, for pumps in parallel - add flowrates
Pumps, Compressors, Blowers and Fans
Comparing pumps, compressors, blowers and fans
Pumps, Fans and Turbines - Horsepower
Definition of British Horse Power for pumps, fans and turbines - how to convert to other common units
Recommended Delivery Flow Velocity of Viscous Liquids
Normal flow velocities on the delivery side of the pump in viscous systems
Shut-off Head
Centrifugal pumps and maximum - or shut-off - head
Specific Speed - Pumps
Specific speed may be determined independent of the pump size
Specific Work of Turbo Machines - Pumps, Compressors and Fans
Specific work of pumps, fans, compressors and turbines
Stable and Unstable Centrifugal Pumps
Characteristics of stable and unstable centrifugal pumps
Static Pressure and Pressure Head in Fluids
Static pressure and pressure head
Suction Flow Velocities of Water
Recommended water flow velocity on suction side of pump
Suction Head affected by Altitude
Pump suction head as affected by altitude
System Curve and Pump Performance Curve
To select a proper pump for a particular application it is necessary to utilize the system curve and the pump performance curve
Vapor Pressure
Saturation pressure - exerted by escaping molecules
Viscosity Converting Chart
A converting table between viscosity units like Centiposes, milliPascal, CentiStokes and SSU
Viscous Fluids - Recommended Suction Flow Velocity
Recommended suction flow velocity of viscous fluids
Volume Flow and Temperature Rise in Pumps
Calculate temperature rise in pumps
Water Delivery Flow Velocities
Required flow velocities in water transport systems - on the delivery side of the pump
Water Pump Calculator
Calculate Pressure Head, Total Dynamic Head, Bowl Horsepower, Total Trust acting on Driver Thrust Bearing, Field Head, Power Loss due to Shafting, Power Loss in Thrust Bearings, Motor Load, Field Efficiency, Input Horsepower (Power Supplied to Driver) and Shaft Elongation
Water Pumping Costs
Costs pumping water
