Bell & Gossett SystemSyzer

Xylem Applied Water Systems

About this app

System Syzer is an HVAC tool that helps with piping system design. The application is based on the original plastic wheel calculator by designed by Gil Carlson of Bell & Gossett. It was first introduced in 1963 and has since been distributed to well over a hundred thousand engineers and tradesmen.

The tool is made up several different calculators. There is a calculator for friction loss and velocity through pipe based on your fluid conditions. Use it to determine the relationship between fluid temperature, system flow and heat/cooling load. There is a Cv tool that can help in multiple ways.

We have also bundled the Circuit Setter® / Triple Duty Valve calculator that is very handy for balance contractors. Use it during design to help predetermine valve settings and out in the field to determine flow through the valves based on pressure drop readings.

Ratings and reviews

Using circuit setter tool, wants to autofill my email addresses in the numerical value fields. Every time. Infuriating.

Easier to carry than the original syzer wheel.

What is Cv value can anyone explain it thank you

What's new

• Added PEX pipe to Flow Pressure Drop tool