Engineering Documentation Software: Free Offline P&ID, Instrument Index & Document Control (2026)

Aienginear engineering documentation software DocuEngine Ultimate v8.1: free offline instrument index, P&ID studio, ASME B31.3 checks, QR certificates and SHA-256 audit trail

DocuEngine Ultimate v8.1 by Aienginear is free, offline engineering documentation software: ISA-5.1 instrument index, P&ID studio, ASME B31.3-2024 and API RP 14E checks, QR certificates, SHA-256 audit trail, PDF and XLSX export.

Mechanical Integrity & Pressure Vessel Calculator

Ensure Compliance with the ASME Guard™ Ultimate Suite In the realm of process and mechanical engineering, equipment safety and compliance are non-negotiable. Whether you are analyzing existing facility assets or performing preliminary sizing for a new skid, having immediate, reliable access to industry-standard calculations is essential. The ASME Guard™ Ultimate Suite is a comprehensive, client-side … Read more

Advanced Process & Thermodynamic Suite: 8 Free Process Engineering Calculators

Aienginear Advanced Process & Thermodynamic Suite v5.0.0 with eight process engineering calculators: Antoine, Rackett, Colebrook pressure drop, API RP 14E, ASME VIII-1, Beggs & Brill, DAK Z-factor and API 520

Free Aienginear process engineering calculator suite: Antoine and IAPWS vapour pressure, Rackett density, Colebrook pressure drop, API RP 14E erosional velocity, ASME VIII-1 shell and head thickness, Beggs & Brill two-phase flow, DAK gas Z-factor and API 520 relief valve sizing, with printable tables and worked examples.

Free Engineering Calculators: 33 Process, Piping & Mechanical Tools

Free engineering calculators by Aienginear: 33 process, piping, pressure integrity and energy tools

33 free engineering calculators from Aienginear for pipe sizing, pressure drop, PSV relief, ASME VIII vessels, control valves, flow meters, flange torque and hydrotests. Printable, standards-referenced, no signup.

Mechanical & Energy Utility Suite: Pipe Heat Loss, Insulation Thickness, Steam & Compressed Air Calculators (2026)

Pipe heat loss calculator by Aienginear: heat loss vs insulation thickness for a 6-inch steam line, 1,385 W/m bare vs 86 W/m with 50 mm insulation

Free pipe heat loss calculator to ISO 12241 & ASTM C680, plus economic insulation thickness, tank heat loss, steam traps, compressed air, HVAC, PV and CO₂.

Solvent Property & Sizing Calculator: Vapour Pressure, Line Sizing, NPSH & Relief (2026)

Aienginear Solvent Property and Sizing Calculator v4.0.0: vapour pressure, blends, Hansen, line sizing, NPSH, flammability and API 520/521 relief

Free solvent property and sizing calculator for 27 solvents: vapour pressure and boiling point at any pressure, blends and flash point, Hansen RED, line sizing with static checks, NPSHa, heat transfer, GHS/NFPA flammability and API 520/521 relief screening, with printable Aienginear tables.

Chemical Dosing & Flushing Calculator

Commissioning a new facility or validating an existing process requires exact calculations and strict adherence to industry standards. CommishPro Ultimate v3.0 by Aienginear is the industry’s most comprehensive Commissioning and Chemical Dosing Suite, designed specifically for process engineers, validation specialists, and plant operators. From complex chemical dosing algorithms to ASTM-compliant turnover sequencing, CommishPro eliminates the … Read more

Pump Sizing Calculator | Hydraulics & NPSH Analysis Suite

Aienginear Pump Sizing Calculator: TDH, NPSH, head loss and motor power, with pump curve, system curve and duty point

Free Aienginear pump sizing calculator: total dynamic head, NPSH available and margin (ANSI/HI 9.6.1-2024), Darcy-Weisbach friction loss, API 610 operating region and motor sizing, with worked examples and printable tables.

Fluid Flow & Pipe Sizing Calculator: Pipe Size, Pressure Drop, Gas & Two-Phase Flow (2026)

Aienginear Fluid Flow & Pipe Sizing Calculator for line sizing, Darcy-Weisbach pressure drop, gas and two-phase flow, 3-K fittings and NPSH to ASME B36.10 / B36.19 pipe bores

Free Aienginear fluid flow and pipe sizing calculator: recommends the line size from velocity and pressure-gradient limits, with Darcy-Weisbach and Colebrook-White pressure drop, gas pipeline equations, compressible and two-phase flow, 3-K fittings, pump NPSH, slurry and API RP 14E erosion checks.