Technical Calculators
Professional engineering tools for passivation, chemical dilution, flow analysis, and system commissioning. Free, accurate, and built for the field.
Active Calculators
Professional-grade tools used by commissioning engineers, contractors, and facility managers across the industry.
Chemical Dilution Calculator
Calculate precise chemical dilutions for passivation, cleaning, and surface treatment solutions. Supports citric acid, nitric acid, and alkaline cleaners with automatic concentration adjustments.
Flow Rate & Velocity Calculator
Calculate flow rates, velocities, and Reynolds numbers for pipe systems. Essential for high-velocity flushing and turbulent flow verification.
Pipe Surface Area Calculator
Calculate internal surface area for piping systems. Critical for determining chemical volumes and passivation coverage requirements.
Reynolds Number Calculator
Determine flow regime (laminar, transitional, turbulent) for flushing operations. Includes fluid property presets and temperature corrections.
System Volume Calculator
Calculate total system volume for complex piping configurations. Accounts for pipe sizes, fittings, vessels, and equipment.
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Advanced calculators currently in development. Sign up for notifications when they launch.
Passivation Time Calculator
Calculate optimal passivation exposure times based on alloy type, chemical concentration, and temperature parameters per ASTM standards.
Chemical Cost Estimator
Estimate total chemical costs for passivation and cleaning projects. Includes waste disposal factors and multiple vendor pricing.
Pressure Drop Calculator
Calculate pressure losses through piping systems. Accounts for pipe friction, fittings, valves, and elevation changes.
Pump Sizing Calculator
Size temporary pumps for flushing and chemical circulation. Includes head calculations and pump curve matching.
Heat Transfer Calculator
Calculate heat transfer rates for chemical heating and cooling requirements. Essential for temperature-controlled passivation.
Tank Mixing Calculator
Design mixing systems for chemical tanks. Calculate agitator sizing, mixing time, and circulation requirements.
Rinse Water Calculator
Calculate rinse water volumes and quality requirements. Includes conductivity targets and rinse cycle optimization.
Weld Count Estimator
Estimate weld counts and inspection requirements from isometric drawings. Useful for project planning and QC budgeting.
Who Uses These Tools
Field Engineers
Quick calculations during commissioning and field work
Project Managers
Planning and estimating for bids and proposals
QA/QC Teams
Verification of procedures and parameters
Facility Managers
Maintenance planning and chemical ordering
Key Formulas
The engineering equations behind our calculators.
Reynolds Number
Determines flow regime: Laminar (Re < 2300), Transitional (2300-4000), Turbulent (Re > 4000)
Flow Velocity
Calculate fluid velocity from volumetric flow rate and pipe cross-sectional area
Dilution Formula
Calculate volumes and concentrations for chemical dilution mixing
Pipe Surface Area
Calculate internal surface area for chemical coverage and passivation requirements
Need a Custom Calculation?
Our engineering team can help with complex calculations for your specific project requirements.