A rotary plug valve including a valve body open at one or both axial ends and having a bore with a lateral inlet port and a lateral outlet port communicating with the bore on opposite sides thereof.GLOBE VALVE A plug is provided in the bore having a passage which communicates with the inlet and outlet ports in the open position of the valve.Balance Valves Removable sealing means are provided between the bore and the plug for preventing leakage between the inlet and outlet ports and to the outside of the valve. The plug has an opening extending axially inwardly from one or both ends thereof corresponding to the open end or ends of the valve body.Plug Valves The openings are normally closed by closure plugs and serve as storage compartments for replacement parts of the valve. In some forms of the invention a valve operating handle can be threaded into a hole in either closure plug or into a storage compartment itself to serve as an aid in seating or unseating the plug in the valve body.

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