FIELD: machine building.
SUBSTANCE: example apparatus includes a valve seat assembly including a cage and a valve seat coupled to the cage. Valve seat assembly is to be disposed in a valve body. Seal has a first side, a second side, a third side and a fourth side, wherein the first side, the second side and the third side are to be in contact with the valve seat assembly, and the fourth side of the seal is to be in contact with the valve body. Valve seat includes a plurality of recesses allowing the control device to interact with the valve seat to move the valve seat relative to the cage when the valve seat assembly is located in the valve body.
EFFECT: valve seat assemblies are disclosed in the present description.
26 cl, 9 dwg
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