Pipe Designer

Pipe Designer logo.

Designed to eliminate the tedium of conventional piping design techniques, increase accuracy of calculations, and ultimately save time:

  • Perform detailed calculations for a new piping network to determine required pipe sizes, the critical path in the system for pump sizing, valve pressure drops, and the effects of elevation change.
  • Design systems using three different pipe materials: steel, copper, and PVC. Generate a complete bill of material and accurately estimate system material and/or installed costs if unit prices are known.
  • Examine open and closed systems using virtually any fluid with known viscosity and specific gravity. Enter coil flow rates and pressure drops along with pipe lengths -- the program will identify the critical path in your network, and total gallons of fluid required.
  • Accurately model existing systems by simply specifying pipe sizes for each leg in the system. You can also analyze hybrid systems consisting of new and existing piping and reverse-return layouts!
The familiar, intuitive Windows user interface will save you time and effort in performing these tedious calculations. Using methodologies defined in the ASHRAE Handbook of Fundamentals, you can be confident in the results this tool provides. Once the design is complete, you can generate detailed reports that can be used to determine pump sizes, bills of material, and system cost.


fluid systems, piping design, existing systems



Expertise Required

Basic knowledge of piping systems and terms.


Approximately 1000 users worldwide.


Mechanical engineers and system designers in need of accurate piping system modeling capabilities.


System and fluid characteristics; leg, valve, and fitting quantities.


Calculated flows, velocities, and pressure drops, along with critical path; echo input, path and tee information, and bill of materials, all available to be printed or viewed on the screen.

Computer Platform

PC-compatible, 486 or higher (Pentium recommended), Windows 3.1 or higher, 12 MB RAM (16 MB recommended), 8 MB free hard drive space.

Programming Language



Intuitive input structure, ability to model open systems, capability of modeling any fluid as long as viscosity and specific gravity are known, adjustable costs.


User cannot specify which pipe sizes NOT to be selected.



Trane Company


3600 Pammel Creek Road
Building 17-1
La Crosse, Wisconsin 54601-7599
United States


(608) 787-3926


(608) 787-3005






The Distribution Suite, which includes both Trane Pipe Designer and VariTrane Duct Designer, can be purchased for $595 for a standard single license or $892.50 for a site/LAN license. The cost for Trane Pipe Designer alone is $195 for a standard single license and $292.50 for a site/LAN license. Call the Support Center to receive special pricing for educational purposes or current promotional discounts. A yearly renewal fee of 23% of the purchase price entitles the customer to unlimited free phone support, as well as automatic updates and documentation. All Trane C.D.S. software programs have an unconditional 30-day money-back guarantee. "Patches" are also available for download from our web site, listed above. We offer on-site training at our headquarters in La Crosse, WI, as well as regional training at sites throughout the U.S. or at your office if you prefer. Contact the C.D.S. Support Center for more information. The C.D.S. department's Support Center is staffed by experienced HVAC engineers and specialists. Support Center hours are 8:00 AM-5:30 PM CT Monday-Thursday, and 8:00 AM-5:00 PM CT Friday.