Method and apparatus for sealing valve stems
Motorized cam actuator
Multiple schedule valve
Multiple thrust range live loade packing system for stems, shaft
Needle valve for flow control
Non-bolted ringless nozzle dam
Non-planar flexible graphite sealing rings
Non-rotating stem valve
Nozzle latch mechanism
One piece top seal for a valve
Opening/shutting apparatus for flow control
Operator for a gate valve
Over center high deflection pressure energizing low leakage...
Packed seal for a valve
Packing box arrangement for a gate valve
Packing containment for live loaded fugitive emission seals
Packing gland assembly
Packing nut for control valve
Packing system for valves
Packingless gate valve and actuator assemblies