Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications!

Closed Expansion Tanks - Volume vs. Temperature and Pressure

Sizing of low temperature closed expansion tanks.

Temperatures in degrees Fahrenheit and pressure in psig

  • initial temperature 50oF
  • initial pressure 10 psig
  • maximum operating pressure 30 psig
  • safety factor aprox. 2

The diagram below can be used to estimate the size of a closed expansion tank at low temperature.

Closed expansion tanks - sizing diagram in fahrenheit

For initial and maximum pressures different from above - multiply the tank size with the a correction factor estimated from the diagram below:

Closed expansion tanks - sizing diagram in psig

Temperatures in degrees Celsius and pressure in kPa

  • initial temperature 10oC
  • initial pressure 70 kPa
  • maximum operating pressure 200 kPa

The diagram below can be used to estimate the size of a closed expansion tank at low temperatures.

Closed expansion tanks -  sizing diagram in celsius

For initial and maximum pressures different from above - multiply the tank size with the a correction factor estimated from the diagram below:

Closed expansion tanks -  sizing diagram in kPa

Related Topics

  • Heating Systems

    Design of heating systems - capacities and design of boilers, pipelines, heat exchangers, expansion systems and more.

Related Documents

Search

Search is the most efficient way to navigate the Engineering ToolBox.

Engineering ToolBox - SketchUp Extension - Online 3D modeling!

3D Engineering ToolBox Extension to SketchUp - add parametric components to your SketchUp model

Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with older versions of the amazing SketchUp Make and the newer "up to date" SketchUp Pro . Add the Engineering ToolBox extension to your SketchUp Make/Pro from the Extension Warehouse !

Translate this Page

Translate this page to Your Own Language .

About the Engineering ToolBox!

Privacy Policy

We don't collect information from our users. More about

We use a third-party to provide monetization technologies for our site. You can review their privacy and cookie policy here.

You can change your privacy settings by clicking the following button: .

Citation

This page can be cited as

  • The Engineering ToolBox (2008). Closed Expansion Tanks - Volume vs. Temperature and Pressure. [online] Available at: https://www.engineeringtoolbox.com/closed-expansion-tank-sizing-d_1271.html [Accessed Day Month Year].

Modify the access date according your visit.

3D Engineering ToolBox - draw and model technical applications! 2D Engineering ToolBox - create and share online diagram drawing templates! Engineering ToolBox Apps - mobile online and offline engineering applications!

Unit Converter


















































11.25.10

.