MyEngDesk is a modular engineering calculator for process and piping engineers. Each module covers a specific calculation, including pipe sizing, PED classification, wall thickness, thermal expansion, and more. Selected modules use a backend calculation API while the frontend keeps the workflow fast and interactive.

Select a module from the Module dropdown at the top. Fill in the inputs and results update automatically. Each module has a help button that explains the method, formulas, inputs, and results in detail.

The built-in databases cover common pipe sizes, schedules, and piping components for fast lookup and preliminary engineering checks. Always verify values against the project standard, manufacturer catalogue, and applicable specification before procurement or fabrication.

Units can be switched globally in Settings. Available presets include SI metric, US customary, and UK/mixed where supported by the active module.

All results are indicative only and must be verified by a qualified engineer against applicable codes and project-specific conditions. MyEngDesk does not replace a formal engineering analysis, stress analysis, or code compliance review.

Reports are welcome for wrong calculation results, missing schedules, incorrect dimensions or masses, standard mismatches, and UI problems.

• Module, DN/NPS, standard, schedule, series, or component family
• What result you got vs. what you expected
• Reference source if applicable
• Browser and device

[email protected]

MyEngDesk is intended as a design aid for preliminary and conceptual engineering calculations. Outputs are indicative only and shall not be used as the sole basis for engineering, procurement, fabrication, or construction decisions.

All calculations and database values must be independently verified by a qualified engineer using applicable codes, standards, catalogues, and project-specific requirements. This includes but is not limited to pipe sizing, stress analysis, support design, pressure vessel calculations, and flow calculations.

MyEngDesk is provided as is without warranty of any kind. The authors and contributors accept no liability for consequences arising from use of this tool or reliance on its outputs.

Where referenced, calculations follow methodologies from EN 13480, ASME B31.3, API 2000, ISO standards, and EN 1993. Compliance with specific project codes and standards remains the sole responsibility of the user and their engineering organisation.

By using MyEngDesk you acknowledge that you have read, understood, and agree to these terms.

MyEngDesk is a practical engineering workspace for piping designers, project engineers, and anyone working with industrial piping systems. It brings everyday sizing and screening calculations into one fast web tool, with clear inputs, visual checks, and transparent engineering assumptions.

• Pipe Weight & Support Span
• Flow Velocity & DN Selection
• Schedule / Series Selection
• Pipe Wall Thickness (ASME B31.3 / EN 13480-3)
• PED Category Classification (Directive 2014/68/EU)
• Thermal Expansion & Expansion Loop Sizing
• Pressure Drop
• Water Hammer - Joukowsky
• Tank / Vessel Sizing

• Two-Phase Flow Regime
• Gas Pressure Regulator Sizing
• Tank Breathing - API 2000
• Steel Support - Profile Selection

Calculations use commonly applied engineering methods and references such as EN 13480, ASME B31.3, PED 2014/68/EU, API 2000, EN 1993, and standard fluid mechanics or structural beam theory where relevant. Results are intended for fast engineering screening and must be verified by a qualified engineer before use in design documentation.

[email protected]