Ball valve
Ball valve
Ball valve
Ball valve
Ball valve
Ball valve
Ball valve
Ball valve and method of assembly
Ball valve and seat assembly
Ball valve and seat assembly
Ball valve having a magnetic seat sealing device
Ball valve having improved seal means
Ball valve provided with a lock ring
Ball valve seat assembly having a removably mounted face seal in
Ball valve seat for high temperature service
Ball valve with a ceramic valve ball and ceramic seat rings
Ball valve with improved seals
Ball valve with linear elastomeric seal mounting
Bi-directional gate valve
Bi-directional valve seal mechanism