Dacta Therm PPR Piping System

Linear expansion

Stress Status

Figure 10

Stress status during installation, if planned and carried out properly, offers a visually perfect installation, as the linear expansion is not noticeable in the operating system.

The side length LDN is calculated according to the following calculation example: L DN = K x √ D x ∆ ∫ /2

Amin: Minimum width of expansion loop SD: Safety margin (150mm) L DN : Length of stress status (mm) D: Pipe outer diameter ∆ ∫: Amount of elongation (mm) L: Pipe length (m) K: Specific constant of material (K=30)

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