Sigma Ingenieurgesellschaft mbH
- Develops programs for pipe stress analysis, calculation of flow distribution, pressure drop and temperature loss in piping networks. Detailed program descriptions. Also offers engineering and consulting services.
- http://www.rohr2.com/

SST Systems, Inc.
- The makers of CAEPIPE, pipe stress analysis software. In the field since 1984.
- http://www.sstusa.com/

Excel Spreadsheets for Piping Calculations
- Piping engineering software based on design sections in ASME B31.1 Power Piping, ASME B31.3 Process Piping, and ASME B31.5 Refrigeration Piping. Site gives program description and ordering information.
- http://www.pipingoffice.us

Peng Engineering
- Pipe stress analysis and piping flexibility engineering software.
- http://www.pipestress.com/

dP Pressure Drop Calculator
- A small computer program that performs pressure drop calculations for pipework. Online version requires Flash.
- http://www.xs4all.nl/~kostermw/dP/index.htm

PIPE-PRO
- Five programs in one package for fluid flow analysis of piping systems.
- http://www.pipe-pro.com

PIPENET
- Fluid flow analysis software with transient or steady state, schematic drawing capability, fire protection systems (NFPA), pipe sizing, surge analysis and prevention, hydraulic force calculations.
- http://www.sunrise-sys.com

Piping Systems Fluid Flow Software
- A total working environment for the hydraulic design analysis and trouble-shooting of new and existing piping systems.
- http://www.fluidflowinfo.com

TransAM
- Windows based hydraulic transient analysis (i.e., waterhammer) model for pipe systems with pumps, turbines, flow control valves, tanks, reservoirs, vacuum relief valves, air chambers, and pressurized surge tanks.
- http://www.hydratek.com

Hytran Solutions
- A Windows software package for analyzing HYdraulic TRAN sients or water hammer in pipelines.
- http://www.hytran.net

Helix delta-Q
- Pipe network analysis program. To design and optimise pipe networks for compressible and incompressible fluids. Can calculate friction losses and pressure drop in pipes and fittings for Liquids, Slurries and Gasses. Models complex process flow pipe networ
- http://www.helixtech.com.au/prod01.htm

Applied Flow Technology
- Windows software that models fluid flow in pipe networks. Incompressible and compressible flow, and waterhammer/surge modeling.
- http://www.aft.com