Over pressure protection arrangement for fluid, particularly aqueous solutions or urea water solution, for use in pump head of pump, has solution-prominent line and expansion body that is arranged outside of solution-prominent line

摘要

The over pressure protection arrangement (1) has a solution-prominent line (2) and an expansion body (18) that is arranged outside the solution-prominent line. A valve seat (15) of a valve is arranged with a sealing body (3) between the solution-prominent line and the expansion body. An independent claim is also included for a pump head for a pump.