MASTER 3 drainage pipes consist of three polypropylene layers optimally complement each other. Each layer has its own special effect on the characteristics of the pipe:
The smooth inner layer prevents incrustations, provides for very good discharge capacity and is jointly responsible for the good noise control characteristics. The white colour of the inner layer facilitates camera inspection.
The semi-rigid intermediate layer provides high rigidity and provides for specific robustness. The impact resistant external layer makes the pipe particularly hard-wearing and permits perfect assembly even at low temperatures.
MASTER 3 fulfils the requirements regarding improved noise control
The MASTER 3 system has undergone rigorous acoustic measurements according to DIN EN14366 at the Frauenhofer Institute in Stuttgart (test report P - BA 53/2007). The values achieved during these measurements fulfil the requirements regarding improved noise control in domestic equipment as defined in ÖNORM B 8115 - 2 (the standard specifies = 25 dB (A)).
