Valve with a channel, a valve seat and a moveable seal for closing the channel, useful for pipeline systems, has valve seat and/or seal made at least partially from a powder metallurgical material

摘要

A valve with a channel (2) with a valve seat (4) and a moveable seal (10) for closing the channel, where the valve seat and/or seal are made at least partially from a material prepared by powder metallurgy. Independent claims are included for: (1) a valve seat as described above; (2) a seal as described above.