This valve design employs a rotating closure element, shaped as a partial sphere, positioned off-center within the valve body. This off-center, or “eccentric,” mounting is a defining characteristic. The rotating movement controls the flow of fluids or gases. This specific configuration allows for tight shutoff and reduced wear due to the wiping action of the closure element against the seat during operation. A typical application involves handling abrasive slurries where standard valve designs may experience accelerated degradation.
The design offers advantages such as minimal pressure drop when fully open and inherent resistance to clogging. Its robust construction contributes to a long service life and reduced maintenance requirements. The origins of this valve type can be traced back to applications where reliability and durability were paramount, particularly in industries dealing with challenging media. This valve’s architecture addresses the specific needs of such environments, providing a solution where conventional valves often fall short.
