With a constant speed feed pump, the lower feedwater flow along with the drop in system head requires the control valve to absorb the additional pressure drop and, as a result, the control valve ...

Referring to the temperature control example in Figure 1, the steam inlet pressure is usually constant. Therefore, the pressure differential (Δp) across the valve is also almost constant, and the ...

At this point, the ORIT will begin to open and allow refrigerant to flow into the receiver. Pressure regulating valves can control either upstream pressure or downstream pressure, but not both. When ...

When throttle pressure is constant ... steam flow and thus an increased boiler firing rate. However, because of process latencies, nonlinearities, and interaction, a control system that uses ...

Choked flow in control valves is a subject of serious concern ... By Bernoulli’s law, the total energy at every point in the flow stream is constant, so if velocity is increased, pressure must fall.

Analogues of the resistors, capacitors and diodes of an electronic circuit could eliminate the need for bulky external pumps to control ... limits the flow of liquid. But as the pressure is ...

Consider the steady, flow of a constant density fluid in a converging ... One-dimensional duct showing control volume. When streamlines are parallel the pressure is constant across them, except for ...

CHICAGO, May 1, 2025 /PRNewswire/ -- Flow ... control sector, has announced the acquisition of Aquatrol Inc. ("Aquatrol" or the "Company"), a U.S.-based manufacturer specializing in safety and ...

HOUSTON, April 21, 2025 /PRNewswire/ -- Scout Surface Solutions LLC ("Scout"), a leading provider of completions services and equipment to the oil and gas industry across North America and the ...