RAL

Walraven is one of the initiators of the ‘Gütegemeinschaft Röhrbefestigung’ (Safe Connection). The most important producers of pipe fixing systems have set up univocal product quality guidelines in this quality association. The ‘Gütegemeinschaft Rohrbefestigung’ has become acknowledged in 2003 by the RAL, the German institute for quality guarantees.

Your Benefits

The technical properties of the products, like the maximum safe working load, are established and published by means of a standardised measuring method. Within the measuring method the maximum allowed load is calculated, taken a maximum deflection into consideration. With the RAL-mark the quality of the pipe fixing products, like clamps and fixing rails of the participating manufacturers becomes clear and simply comparable.

Measurment Method

Currently 4 measuring methods for the load capacity of pipe fixing products under normal temperatures have been published:

• pipe clamps (RAL-GZ 655/B)
• fixing rail (RAL-GZ 655/C)
• rail accessoires (RAL-GZ 655/D)
• cantilever arms (RAL-GZ 655/E)

Also 1 measuring method for the load capacity of pipe clamps during fire:

• pipe clamps (RAL-GZ 656)
  RAL in the Walraven catalogue

The maximum safe working loads which are mentioned in the tables are based on:

• A Walraven developed measuring method
• The measuring method prescribed in the testing prescriptions RAL-GZ 655 and RAL-GZ 656, which is set up by the ‘Gütegemeinschaft Rohr befestigung’. If the product is provided with the ‘RAL-Gütezeichen’, the test results are checked by an independent testing institute. 

RAL-Gütezeichen