Working pressure

The following tables illustrate the permissible working pressures of the aquatherm piping systems based on a 50 year life-cycle. The balance between working pressure and operating temperature varies based on the wall thickness of the pipe, as well as the presence of a faser-composite layer. All wall thicknesses are determined by SDR (standard dimension ratio) in which the wall thickness is a ratio of the total diameter. For example, the wall of an SDR 6 pipe is 1/6 the total diameter of the pipe.

Compressed air pressure ratings

Aquatherm piping systems are excellently suited to compressed air applications, due to their high creep strength and non-corroding composition.

For systems with no control on the air temperature, use 50% of the system’s maximum working pressure as the compressed air rating. If the air input can be kept under 100°F, use 75% of the system’s maximum working pressure as the compressed air rating.