Abstract: A fluid pressure reduction device comprises two or more stackable annular plates. Each disk having a perimeter and a hollow center aligned along a longitudinal axis when the annular plates are stacked one on top of the other. Each disk further comprising at least one inlet flow sector having an inlet flow stage for defining a first inlet area and a first outlet area, and at least one outlet flow sector having an outlet flow stage defining a second inlet area and a second outlet areas wherein the ratio of the second inlet area to the second outlet area is predetermined to define a backpressure at the outlet flow stage to provide a sub-sonic fluid flow at the perimeter.

Abstract: A method results in a system configuration wherein positioning a plurality of spargers reduces noise levels caused by fluid passing through the plurality of spargers. The method includes providing the plurality of spargers, each sparger having a center line access and an outer diameter measurement. Each of the plurality of spargers is positioned in a manner such that a ratio of the distance between the center line access of each sparger to the outer diameter measurement of each sparger is greater than a pre-determined ratio value. A greater ratio results in a reduction of noise emitted.

Abstract: A fluid pressure reduction device comprises two or more stackable annular plates. Each disk having a perimeter and a hollow center aligned along a longitudinal axis when the annular plates are stacked one on top of the other. Each disk further comprising at least one inlet flow sector having an inlet flow stage for defining a first inlet area and a first outlet area, and at least one outlet flow sector having an outlet flow stage defining a second inlet area and a second outlet areas wherein the ratio of the second inlet area to the second outlet area is predetermined to define a backpressure at the outlet flow stage to provide a sub-sonic fluid flow at the perimeter.

Abstract: A valve having improved inherent flow characteristics and improved dynamic torque characteristics is provided. The valve includes a disk for controlling fluid flow inside the valve. The disk has at least a sealing surface for sealing with a valve seal when the disk is in a closed position. The sealing surface includes a contour and creates a flow clearance with the valve seal as the disk pivots from a closed position toward an open position. A radius of curvature of the contour defines a size of the flow clearance at predetermined disk positions to characterize flow through the valve. The valve can further include an upstream indentation for dynamic torque reduction and/or an indentation for dynamic torque reduction in case of a fluid flow reversal.

Abstract: A valve having improved inherent flow characteristics and improved dynamic torque characteristics is provided. The valve includes a disk for controlling fluid flow inside the valve. The disk has at least a sealing surface for sealing with a valve seal when the disk is in a closed position. The sealing surface includes a contour and creates a flow clearance with the valve seal as the disk pivots from a closed position toward an open position. A radius of curvature of the contour defines a size of the flow clearance at predetermined disk positions to characterize flow through the valve. The valve can further include an upstream indentation for dynamic torque reduction and/or an indentation for dynamic torque reduction in case of a fluid flow reversal.