A VALVE FOR USE IN A VALVE ASSEMBLY AND A VALVE SEAT ASSEMBLEY PROVIDED WITH SAID SALVE.

摘要

We claim:   1. A valve for use in a valve seat assembly, said valve comprising an upper guide post and a lower guide post each adapted to be supported in bearings for axial movement therein, a spine portion integral with said upper and lower guide posts and a preshaped valve ring coaxially disposed on said spine portion.