| 摘要 |
The invention relates to a pressure-limiting valve, comprising a housing (2) and a pressure adjustment device (6) provided therein. Furthermore, the pressure-limiting valve contains a valve seat (20), which is arranged in the housing and which can be closed by means of a spring-loaded closing element (14) of the pressure adjustment device. The housing is composed of cast iron having spherical graphite, wherein the housing is surface-hardened at least in a region of the valve seat. |
