Live loaded valve stem packing with shape memory alloy option
Liveload assembly for valve
Load-profile compensating stuffing-box packing system for...
Low and high operating temperatures valve
Low emission valve
Low friction live-loaded packing
Low-leakage valve apparatus
Means to retain a valve stem
Mechanically preloaded packing assembly
Metal seal for a gate valve stem
Method and apparatus for sealing valve stems
Multiple thrust range live loade packing system for stems, shaft
Non-planar flexible graphite sealing rings
Non-rotating stem valve
One piece top seal for a 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