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Engineering Tool · Process Equipment

Pipe Friction & Pressure Drop Calculator

Model friction loss, fitting/valve losses, and elevation change for a single pipe run across common pipe materials, with temperature-dependent water properties.

Pipeline hydraulicsStage 02 Stage 03 Stage 05
Status
Live Engineering Tool
Conditions
Water / Custom Fluid
Units
Metric / Imperial
Phase
Single pipe run
ATLAS WTS · Process Engineering

Pipe Friction & Pressure Drop Calculator

Preliminary Darcy-Weisbach screening with explicit laminar/transitional/turbulent applicability; fitting K values are fully-turbulent references.

Fluid & Conditions

Pipe

Positive = outlet higher than inlet (uphill).

Flow Rate

Fittings & Valves
Results
Loss Breakdown

Powered by ATLAS WTS

01

Engineering Basis

Methodology

Major (frictional) head loss follows the Darcy-Weisbach equation, with the Darcy friction factor computed via the Swamee-Jain explicit approximation of the Colebrook-White equation for turbulent flow, or f = 64/Re for laminar flow (Re < 2300).

Fitting and valve losses use the standard K-value method (h = K·V²/2g), with published reference K-values per fitting type. Water density and viscosity are temperature-interpolated from standard reference tables.

Standards / Reference Basis

Darcy-WeisbachColebrook-White

Assumptions

  • Water density and viscosity are interpolated by temperature from standard reference tables.
  • Fitting and valve losses use published reference K-values for each fitting type.

Scope / Limitations

  • The calculation covers one pipe run; it is not a network solver.
  • Multi-segment networks, non-standard fluids, and two-phase flow require a detailed hydraulic review.
02

Engineering Path

Workflow

  • Pipeline hydraulics An engineering-system workflow from source and pipe-network definition through friction/pressure evaluation, air management, and equipment selection.
    Stage 02 — Pipe NetworkReturn to Stage 02
    Stage 03 — Friction & Pressure EvaluationReturn to Stage 03
    Stage 05 — Equipment Selection ReviewReturn to Stage 05
  • High-purity water Quality-critical water planning for advanced manufacturing and related uses. Define the end-use basis first: semiconductor UPW, pharmaceutical PW/WFI, power or boiler makeup, and laboratory water are distinct duties.
    Stage 06 — Distribution & MonitoringReturn to Stage 06
03

Related Resources

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