Technical data

From most of our products a maximum allowed load is being mentioned in the article tables. Stated values are determined by Read more >>

The metal products manufactured by Walraven are treated with an anti-corrosion process to give them long-term optimum protection against adverse environmental effects. Download our PDF to read a summary of the protective surface treatments used by Walraven.

Here you will find information about diameters and weights of steel pipes, cast iron pipes, copper pipes, air ducts, PE pipes and PVC pipes.

Fixing points are applied to pipes with a high expansion ratio. Expansion and shrinkage of pipes normally occurs under the influence of temperature changes Read more >>

Walraven makes products in metal and plastic or in a combination of metal with plastic. You will find here an overview of the plastics and their properties used by Walraven. Read more >>

Pipes expand or shrink due to changes in temperature. How much depends on the material the pipe is made from. You will find here an overview of the thermic changes in length of the most commonly used piping materials. Read more Read more >>