ECCENTRICALLY OFFSET PLUG

PLUG FACE IS ECCENTRICALLY OFFSET FROM THE VALVE SHAFT

Eccentrically Offset Plug

Eccentric plug valves have two offsets:

  1. Plug face is offset from the valve shaft
  2. Centerline of plug rotation is offset from the plug face creating the eccentric action

This assures the plug does not rub during operation. It contacts the seat only at the closed position.

Since eccentric plug valves are frequently used in dirty, gritty or sandy media, its eccentricity assures long seat life.

How to Specify:

The plug shall have a cylindrical seating surface eccentrically offset from the center of the shaft. Plug shall not contact the seat until at least 90% closed.