Inherent control valve flow characteristics are established assuming a constant Δp across the valve. If the valve Δp is reduced as the flow increases, meaning that there is a valve pressure drop decay ...

To help answer a reader question about how to select the right valve for an application, we connected with Ross Turbiville of Emerson Automation Solutions to learn more about the different types of ...

• Case No. 1. Flow rate was 823 b/d, with 43% bs&w and GOR of 1,244 scf/bbl (Table 2). Fig. 2a shows the separator operating level before and after putting the feed control valve in service.

1. Flow-to-open cutaway. Control valves equipped with noise-abatement trim, such as a drilled-hole cage or a tortuous path stack, are typically oriented in the flow-to-open direction.

Control valve installed flow and installed gain characteristics comparing a properly sized 3-inch valve and an oversized 6-inch valve in the same system. Emphasis is added to show the portion of the ...

A new control valve is less vulnerable to damage by high-velocity ... Control Valve Withstands Choked-Flow Conditions Throughout its Control Range. ... sliding characteristics or biocompatibility.

A simpler, passive method of controlling pressure transients in hydraulic sustems can be accomplished using line restrictors. These graphs compare the pressure/flow characteristics of orifice and ...

Honda's VTEC is an acronym that stands for Variable Valve Time and Electronic Lift Control, and it's been around since 1989.