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Pressure Drop Calculator
Single Phase Analysis for Liquids & Gases in Piping Systems
System Configuration
Units System
Metric (m, m³/h, kg/h, kPa)
Imperial (ft, GPM, lb/hr, psi)
Fluid Type
Liquid
Gas
Calculation Method
Darcy-Weisbach (Universal)
Hazen-Williams (Water Only)
Isothermal Gas Equation
Fluid Properties
Common Fluids
Custom Properties
Water
Air
Fluid Temperature
°C
Density
kg/m³
Dynamic Viscosity
cP
Pipe & Flow Parameters
Calculation Mode
Calculate Outlet Pressure (from Inlet)
Calculate Inlet Pressure (from Outlet)
Inlet Pressure
kPag
Required Outlet Pressure
kPag
Pipe Material
Nominal Pipe Size
Pipe Schedule
Pipe Length
m
Flow Rate
m³/h
Volumetric
Mass
Elevation Change
m
Primary Results
Inlet Pressure:
-
Outlet Pressure:
-
Total Pressure Drop:
-
Fluid Velocity:
-
Hydraulic Details
Pipe Internal Diameter:
-
Reynolds Number:
-
Flow Regime:
-
Friction Factor (Darcy):
-
Actions
📄 Export PDF
🔄 Reset Inputs
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