Patent ID: 6991216
Filing Date: 2006-01-31
Classification: F16K

Abstract:
1. A valve comprising: a valve unit; a passageway in said valve unit, said passageway defining a seat, a seal receiving area and a non-circular inside surface; an inlet passageway in communication with said passageway; an outlet passageway in communication with said passageway; a packing assembly in said seal receiving area of said passageway; a bonnet having a first end and a second end, said bonnet having an internally threaded area and a non-circular exterior area for complementary engagement with said non-circular inside surface of said passageway of said valve unit, said first end of said bonnet for engaging said packing assembly; and a valve stem in said passageway in sealing relationship with an inside surface of said packing assembly, said valve stem threadably engaged with said internally threaded area of said bonnet for selectively sealing against said seat.