Protective element for component exposed to liquid freezing such as freezing pressure formation, has cap with outer sealing edge and central portion, where cap is made of elastomer-containing material, particularly elastomer or plastic

摘要

The protective element (1) has a cap (51) with an outer sealing edge (5) and a central portion (11) emerging from a plane that is formed by the sealing edge. The cap is made of elastomer-containing material, particularly an elastomer or plastic. The expansion volume is extended as a result of the pressure increase depending on the insertion direction selectively by a compressible or by extended movement of the central region. The protective element is made of thermoplastic elastomer.