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

Piping - Recommended Insulation Thickness

Recommended insulation thickness of heating systems like hot water, low, medium or high pressure steam systems

Sponsored Links

To avoid heat loss and reduced system efficiency - pipe work in heating systems should always be insulated. Very hot systems, like hot water and steam systems should also be insulated to avoid potential personal injuries. 

The table below indicates recommended insulation thickness.

Nominal Pipe Size
NPS
(inches)
Recommended minimum Thickness of Insulation (inches)*
Temperature Range (oC)
50 - 9090 - 120120 - 150150 - 230
Temperature Range (oF)
120 - 200201 - 250251 - 305306 - 450
Hot WaterLow Pressure SteamMedium Pressure SteamHigh Pressure Steam
< 1" 1.0 1.5 2.0 2.5
1 1/4" - 2" 1.0 1.5 2.5 2.5
2 1/2" - 4" 1.5 2.0 2.5 3.0
5" - 6" 1.5 2.0 3.0 3.5
> 8" 1.5 2.0 3.0 3.5

* based on insulation with thermal resistivity in the range 4 - 4.6 ft2 hr oF/ Btu in (typical for mineral wool at room temperature)

  • 1 inch = 25.4 mm

Sponsored Links

Related Topics

Related Documents

Tag Search

  • en: insulation thichness pipes
  • es: tuberías thichness aislamiento
  • de: Isolierung thichness Rohre
Sponsored Links

Search 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 the amazing, fun and free SketchUp Make and SketchUp Pro .Add the Engineering ToolBox extension to your SketchUp from the SketchUp Pro Sketchup Extension Warehouse!

Translate this page to
About the Engineering ToolBox!

Citation

This page can be cited as

  • Engineering ToolBox, (2003). Piping - Recommended Insulation Thickness. [online] Available at: https://www.engineeringtoolbox.com/pipes-insulation-thickness-d_16.html [Accessed Day Mo. Year].

Modify access date.

Customize Ads in the ToolBox

Make ads more useful in Google Ad Settings .

. .

close

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!

Scientific Online Calculator

Scientific Calculator

6 22

Sponsored Links
.