Fluid Flow and Pressure Drop
Pipe lines - fluid flow and pressure loss - water, sewer, steel pipes, pvc pipes, copper tubes and more
Absolute, Dynamic and Kinematic Viscosity
Dynamic, absolute and kinematic viscosities - convert between CentiStokes (cSt), centipoises (cP), Saybolt Universal Seconds (SSU) and degree Engler
Boiling Fluids - Max Suction Flow Velocity
Recommended max suction flow velocity when pumping boiling fluids
Boiling Liquids - Max Pumping Flow Velocity
Recommended max flow velocity on the delivery (pressure) side when pumping boiling liquids
Capacities of Sewer Pipes
Carrying capacity of sewer and wastewater pipes - gpm and liter per second
Comparing Friction Loss in Steel, Copper and Plastic Pipes
Water flow and friction head loss (ft/100 ft) in steel, copper and PVC plastic pipes
Comparing Secondary Coolants
Specific gravity, freezing points and viscosity for secondary coolants like calcium chloride, sodium chloride, ethylene glycol and propylene glycol
Copper Tubes - Heat Carrying Capacity
Hot water heat carrying capacity for copper tubes type L
Copper Tubes - Pressure Loss in Fittings and Valves Expressed as Equivalent Length of Tube
Copper tube fittings and equivalent lengths - in feets of straight tube
Darcy-Weisbach Pressure and Head Loss Equation
The Darcy-Weisbach equation can be used to calculate pressure or head loss due to friction in ducts, pipes or tubes
Download ANSI, American National Standards Institute, Standards
ANSI is a private, not-for-profit, membership organization that acts not as a standards developer, but as a standards coordinating and approval body
Equation of Continuity
The Equation of Continuity is a statement of mass conservation
Equivalent Length Method - Calculating Minor Pressure Loss in Piping Systems
Pressure loss in piping systems by using the Equivalent Pipe Length Method
Flow Units Converter
Convert between volume flow units - gpm, liter/sec, cfm, m3/h - an online flow unit calculator
Hazen-Williams Equation - calculating Head Loss in Water Pipes
Friction head loss (ftH2O per 100 ft pipe) in water pipes can be estimated with the empirical Hazen-Williams equation
Hose Water Flow - Pressure Loss
Water flow and pressure loss due to friction in hoses
Hot Water Heating Systems - Steel Pipes Pressure Loss Chart
Steel pipes in hot water heating systems - pressure loss diagram
House Gas Pipe - Capacity
Carrying capacity of house gas pipes - in imperial and metric units
Hydraulic Diameter
Hydraulic diameter of pipes and ducts
Light Oil Pumping Flow Velocity
Max light oil flow velocity on pump delivery side
Light Oil Suction Flow Velocity
Recommended suction flow velocity when pumping light oils
Lined Pipes and Pressure Drop
Pressure drop diagrams for PTFE, PP, PFA and PVDF lined pipes
Liquid Densities
Densities of common liquids like acetone, beer, oil, water and more
Liquids - Specific Gravities
Specific gravity of common liquids and fluids like alcohol, oils, benzene, water and many more
Low Pressure Gas Pipe Sizing
Apartments gas pipe service lines
LPG Pipes and Pressure Drop
Resistance and pressure loss in liquid LPG pipes
Major loss in Ducts, Tubes and Pipes
Major loss - head loss or pressure loss - due to friction in ducts, pipes and tubes
Mechanical Energy and Bernoulli Equation
The mechanical energy equation related to energy per unit mass, energy per unit volume and energy per unit weight involving head
Minor Loss Coefficients in Pipes and Tubes Components
Minor loss coefficients for common used components in pipe and tube systems
Minor Loss in Pipe or Duct Components
Minor loss, pressure or head loss in pipe, tube and duct system components
Natural Gas - Pipe Sizing
Sizing low pressure natural gas pipe lines - imperial units
Natural Gas - Pipe Sizing
Sizing pipes for natural gas - pressures above 5 psi (35 kPa)
Natural Gas - Pipe Sizing
Sizing low pressure natural gas pipe lines - Metric values
Oil Pipes - Recommended Flow Velocities
Flow velocities in oil pipes should be kept within certain limits
Oil Pipes and Pressure Drop
Pressure drop in oil pipes - viscosities ranging 100 - 600 Saybolt Universal Seconds
Online Fluid Flow Calculator
For laminar and turbulent flow
PE - PolyEthylene Pipes, Flow and Pressure Loss
Water flow in SDR pressure rated PE-pipes - pressure loss and velocities - Imperial and SI units
PE, PEH or PVC Pipes - Pressure Drop Diagram
Pressure drop (bar/100 m) and velocy in PE, PEH or PVC pipes
Pipes - Fluids and typical Velocities
Flow of liquids, gases and vapors - typical fluid velocities
Pipes - Water Content - Weight and Volume
Estimate water content in pipes - weight and volume
Pipes and Fluid Flow Velocities
Calculate fluid flow and pipe velocities in pipes and tubes
Plastic Pipes - Friction Head Loss
Friction head loss (ft/100 ft) in plastic pipes - PVC, PP, PE, PEH
Pneumatic Piping - Pressure Loss
Pressure loss in pneumatic tubes - sizes ranging 5 - 36 mm
Pneumatic Powder and Solids - Transport Systems
Pneumatic transport systems are used to move powder and other solid products
Pneumatic Transport and Conveying - Carrying Velocities
Recommended air velocity for pneumatic transport of products like cement, coal, flour and more
Pneumatic Transporting
An introduction to pneumatic transport of powders
Pressfit Pipes - Pressure Loss Diagram
Pressure loss diagram for water flow in pressfit piping
Pressfit Piping - Friction Loss
Pressfit piping with water flow and friction loss
Pressure Gradient Diagrams
A pressure gradient diagram is a graphical presentation of the static pressure throughout a fluid flow system
Pressure Loss in Steel Pipes Schedule 40
Water flow and pressure loss in schedule 40 steel pipes - Imperial and SI units - gallons per minute, liters per second and cubic meters per hour
Pressure to Head - Unit Converter
Convert between pressure and head units - like lb/in2, atm, inches mercury, bars, Pa and more ..
Propane Gas - Pipe Sizing
Sizing low pressure propane gas pipe lines - Imperial units
Propane Gas - Pipe Sizing
Sizing low pressure propane gas pipe lines - Metric units
Propane Gas - Pipe Sizing
Sizing propane gas pipe lines - for pressures above 5 psig (35 kPa)
PVC - Friction Loss in Fittings and Equivalent Length
Minor loss in PVC and CPVC fittings as equivalent length of straight pipe
PVC Pipes - Friction Loss and Flow Velocities Schedule 40
Water flow in thermoplastic PVC and CPVC pipes Schedule 40 - friction loss (ft/100 ft, psi/100 ft) and flow velocities at dimensions ranging 1/2 to 16 inches
PVC Pipes - Friction Loss and Flow Velocities Schedule 80
Water flow in thermoplastic PVC and CPVC pipes Schedule 80 - friction loss (ft/100 ft, psi/100 ft) and flow velocities at dimensions ranging 1/2 to 16 inches
PVC Pipes Schedule 40 - Friction loss and Velocity Diagrams
Friction loss (psi/100 ft) and velocity for water flow in plastic PVC pipe schedule 40
Resistance and Fittings Equivalent Length in Hot Water Systems
Equivalent length of fittings like bends, returns, tees and valves in hot water heating systems - equivalent length in feet and meter
Reynolds Number
Introduction and definition of the dimensionless Reynolds Number - online calculators
SDR - Standard Dimension Ratio - and Pipe Series - S
It is common to use the Standard Dimension Ratio - SDR - as method of rating pressure piping
Slurry Transport - Minimum Flow Velocity
Avoid settling of solids in slurry transport systems with flow velocities above certain levels
Steel Pipes and Maximum Water Flow Capacity
Maximum water flow capacities in steel pipes - pipe dimensions ranging 2 - 24 inches
Steel Pipes Friction Loss with Viscous Liquids
Friction loss in schedule 40 steel pipe with viscous liquids - viscosities ranging from water to oil
Steel Pipes Schedule 40 - Friction loss and Velocity Diagram
Friction loss and velocity diagrams - in imperial (psi/100 ft, ft/s) and SI (Pa/100m, m/s) units
Steel Pipes Schedule 80 - Friction loss and Velocity Diagrams
Water flow in steel pipes schedule 80 - pressure drop and velocity diagrams in SI and Imperial units
Total Pressure or Head Loss in Pipe or Duct Systems
Major and minor loss in pipe, tubes and duct systems
Vacuum Pipe Lines - Pressure Drops
Vacuum pipes and pressure drops
Viscosity Converting Chart
Convert between the viscosity units Centiposes, milliPascal, CentiStokes and SSU
Viscous Fluids - Recommended Suction Flow Velocity
Recommended pump suction flow velocity for viscous fluids
Viscous Liquids - Friction Loss
Friction loss in steel pipes - for fluids with viscosities ranging 32 - 80000 SSU
Viscous Liquids - Recommended Delivery Flow Velocity
Flow velocities on delivery sides of pumps in viscous systems
Volume Flow and Friction Loss in CTS - Copper Tube Sized CPVC Tubes
Volume flow and pressure loss in CTS - Copper Tube Sized CPVC (Chlorinated Poly Vinyl Chloride) tubes
Water - Absolute or Dynamic Viscosity
Absolute or dynamic viscosity of water in centipoises for temperatures between 32 - 200oF
Water - Delivery Flow Velocity
Required flow velocities in water transport systems - on the delivery side of the pump
Water - Suction Flow Velocity
Recommended water flow velocities on suction sides of pumps
Water Flow and Velocity Head in Steel Pipes - Schedule 40
Velocity head used to calculate minor pressure or head loss in fluid flow systems
Water Flow in Copper Tubes - Pressure Loss due to Fricton
Water flow and pressure loss (psi/ft) due to friction in copper tubes ASTM B88 Types K, L and M
Water Flow in Tubes - Reynolds Number
Clean cold waterflow in pipes and the Reynolds number
Williams Hazens Pressure Drop Equation
The Hazen-Williams equation can be used to calculate the pressure drop (psi) or friction loss in pipes or tubes