Compressed air can be a dangerous medium. To prevent serious accidents right from the start, certain safety measures should be considered.

Often cheap copies are offered on the claw coupling market – mostly with low-grade casted material and poorly manufactured. Also hose sets are highly affected due to the use of low-quality hose clamps which are assembled and supplied mostly from the Far East. However, using such products comes with a high-risk potential: Due to the unproperly casted hose barbs and high tolerances of the clamps, a safe fitting of a hose cannot be guaranteed! On the other hand, many cast components have great tolerances. Often, the couplings can no longer be tightly connected and or lead to leakages.
As these copies are often produced with low-quality and non-approved materials such as chilled cast iron (white iron), the products may easily fracture under high strain (i.e. when installed in strongly vibrating construction machines with compressed air).

Using such unsuitable products poses a high liability risk! But this affects not only the user: the seller is also responsible, as he is liable for property damage and/or personal injury within the European Community.c

To illustrate the differences between the material qualities, LÜDECKE conducted a fracture test with two hose clamps. It shows the occurring risks when using nonstandardized components.