Patent ID: 7198061

Claim:
A hydraulically or pneumatically controlled seat valve or pressure control seat valve for mounting to a further component or housing, the valve comprising: a base part defining a valve seat, said base part having a radially outward projecting collar extending about at least a portion of a circumference of said base part, said collar structured to support a joint disposed at said collar to mount the valve to the further component; a cover part connected to said base part; and a valve body displaceably disposed in said cover part, said valve body having a sealing surface cooperating with said valve seat of said base part to close the valve, wherein said cover part comprises a radially inwardly offset and an at least sectionally circumferential shoulder which is suited for abutment to the further component, wherein said shoulder is disposed between a first cover part section proximate an incoming flow side and a second cover part section proximate an outgoing flow side, wherein outer dimensions of said first cover part section on said incoming flow side are larger than outer dimensions of said second cover part section on said outgoing flow side, wherein said cover part has locking sections which extend parallel to an incoming flow direction of the seat valve, wherein front sides of said locking sections facing said incoming flow direction are bevelled and end sides facing away from said incoming flow direction are oriented perpendicular to said flow direction.