Size a line and sanity-check velocity
Start from flow rate and pipe size, then validate velocity and Reynolds number before committing to a pressure-drop method.
Engineering
Subcategory hub
Planned tools
Fluids Process
Pipe flow, pressure loss, pumps, valves, open-channel flow, and practical process calculations.
Browser-first calculations for internal flow, pump studies, valve sizing helpers, and lightweight process engineering checks.
Top workflows
Curated decision paths for this family. Calculator implementations are deferred; these blocks anchor how the catalog will be used once tools ship.
Estimate pressure drop for a straight run
Pick a friction model that matches your data fidelity (Darcy-Weisbach vs Hazen-Williams), then add major losses where fittings matter.
Pump and system head checks
Relate total dynamic head, affinity laws, and NPSH margins so the hydraulic story stays consistent across operating points.
Valve and restriction sizing
Translate between Cv/Kv, orifice behavior, and line losses when throttling or metering is part of the process.
Featured tools
Priority tools for this subcategory. Cross-links point to the main Engineering hub until dedicated calculator routes exist.
Wave 1
planned
Pressure Drop Calculator
Pressure Drop Calculator content entry for Fluids Process workflows.
On hub: Pressure Drop Calculator
Wave 1
planned
Pipe Velocity Calculator
Pipe Velocity Calculator content entry for Fluids Process workflows.
On hub: Pipe Velocity Calculator
Wave 1
planned
Reynolds Number Calculator
Reynolds Number Calculator content entry for Fluids Process workflows.
On hub: Reynolds Number Calculator
Wave 1
planned
Pump Affinity Laws Calculator
Pump Affinity Laws Calculator content entry for Fluids Process workflows.
On hub: Pump Affinity Laws Calculator
All planned tools
Full catalog slice for this family (30 tools), ordered by launch wave then name.
- Pipe Velocity CalculatorWave 1
- Pressure Drop CalculatorWave 1
- Pump Affinity Laws CalculatorWave 1
- Reynolds Number CalculatorWave 1
- Cv/Kv ConverterWave 2
- Darcy Friction Factor CalculatorWave 2
- Hazen Williams CalculatorWave 2
- LMTD CalculatorWave 2
- Orifice Flow CalculatorWave 2
- Total Dynamic Head CalculatorWave 2
- Compressed Air Pressure Drop CalculatorWave 3
- Control Valve Sizing HelperWave 3
- Density Specific Gravity ConverterWave 3
- Duct Pressure Loss CalculatorWave 3
- Equivalent Length CalculatorWave 3
- Flow Unit ConverterWave 3
- Gas Line Velocity CalculatorWave 3
- Heat Duty CalculatorWave 3
- Manning Flow CalculatorWave 3
- Minor Loss Coefficient CalculatorWave 3
- Nozzle Flow CalculatorWave 3
- NPSH CalculatorWave 3
- Pump Efficiency CalculatorWave 3
- Pump Power CalculatorWave 3
- Pumps In Series Parallel CalculatorWave 3
- Residence Time CalculatorWave 3
- Tank Fill Drain Time CalculatorWave 3
- Venturi Flow CalculatorWave 3
- Viscosity ConverterWave 3
- Weir Flow CalculatorWave 3
Featured guides
Supporting guides are mapped in the content model. Published guide slugs open in /guides; unpublished slugs still jump to Engineering hub anchors for context.
published guide
How To Calculate Pressure Drop In Pipes
How To Calculate Pressure Drop In Pipes guide entry for Fluids Process content.
Primary tool: Pressure Drop Calculator
On hub: Open published guide
published guide
What Reynolds Number Means in Pipe Flow
What Reynolds Number Means in Pipe Flow guide entry for Fluids Process content.
Primary tool: Reynolds Number Calculator
On hub: Open published guide
published guide
How Pump Affinity Laws Change Flow Head And Power
How Pump Affinity Laws Change Flow Head And Power guide entry for Fluids Process content.
Primary tool: Pump Affinity Laws Calculator
On hub: Open published guide
Fluids Process FAQ
When should I prefer Darcy-Weisbach over Hazen-Williams?
Darcy-Weisbach is the more general framework when fluid properties and friction factor detail matter. Hazen-Williams can be acceptable for quick water-work estimates when you accept its empirical limits.
Why do pump laws show up next to pipe loss tools?
Most real workflows iterate between the system curve (losses) and the pump curve (head and power). Keeping those checks adjacent reduces inconsistent assumptions across operating cases.
Are these tools a substitute for code compliance or stamped engineering?
No. They are structured quick checks and teaching-oriented workflows. Final design responsibility, standards selection, and documentation remain with the engineer of record.