A GLOBE VALVE adapted for use at cryogenic temperatures having a valve seat in the valve body adapted to be closed by a conical seat disc. The seat disc is supported for vertical movement in a seat holder having a downwardly flared peripheral flange rolled about the seat disc periphery. The holder is carried by an elongated stem which extends through the valve bonnet. The stem and bonnet are sealed by a series of compressed Teflon and brass rings concentric with and between the upper end of the valve bonnet and the stem. Globe ValvesThe rings are axially compressed between a flange formed in the valve bonnet and a sleeve follower which in turn is secured by a packing nut with a washer between one end of the packing nut and the sleeve follower.
A globe valve for use at cryogenic temperatures comprising a valve body having a passage extending therethrough with a valve seat intermediate the ends of the passage, a bonnet having a cylindrical opening secured to said body, an elongated stem extending through said cylindrical opening and supporting at one end a seat disc holder with a seat disc therein within said body for axial movement to and away from said valve seat, a plurality of alternating metal and plastic rings coaxial with said stem and positioned in sBalance Valves aid cylindrical opening, means for maintaining said plurality of rings under compressive force including means at one end interengaging said bonnet with said plurality of rings and a sleeve follower coaxial with said stem at the other end, a packing nut coaxial with and engaging said sleeve follower and adjustably interengaged with said bonnet and a washer coaxial with said stem and positioned between corresponding ends of said sleeve follower and said packing nut providing lateral support for said stem and a moisture barrier between said packing nut and stem.

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