Working Pressure vs. Temperature Considerations


A tube’s working pressure can vary greatly depending upon the temperature of its surroundings as well as the media that is conveyed. Softer tubing such as PVC can have working pressure reductions as much as 80% depending upon temperature.

Some important questions to ask:

What are the ambient temperature conditions for this application? Is it in a hot enclosed space?

What is the expected temperature of the liquid or gas conveyed through the tubing?

What duration of time is this hot media conveyed through the tubing, and at what pressure?


When any doubts exist, it is wise to experiment before a permanent installation.

As part of our support services, ATP will model or test tubing if there are uncertainties.