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Globe control valve — trim & travel SLIDE TRAVEL · SWAP THE PLUG SHAPE · DRAG TO ROTATE
Body / bonnet
Plug + stem (trim)
Seat · actuator · steel
    guides & axial stop
Pipe & flanges
Plinths / grade
Flow through seat
linear  Kv/Kvr
eq-%    Kv/Kvr
seat open
Educational teaching tool — simplified and illustrative. Not for engineering design use.