A flow control regulator assembly having a regulator body with an inflow channel that couples an inlet of the regulator body to a flow rate port and an exit flow channel which couples the flow rate port to an outlet port of the regulator body. The minimal cross-sectional area of the exit flow channel is larger than the maximum cross-sectional area of the inflow channel.

Pressure independent flow rate control valve, for placement in hydraulic systems between upstream inlet and downstream outlet ducts, including a first functional unit arranged between the inlet and outlet ducts, mobile equipment actuated manually or by an actuator for setting and modifying the orifice span of a fluid passage, and thus the valve flow rate, up to complete closure; and a second functional unit for maintaining the differential pressure constant between upstream and downstream of the first unit, and thus the set valve flow rate independently of pressure fluctuations in the hydraulic system. The mobile equipment includes main equipment and secondary equipment which can linearly translate with respect to the main equipment for presetting the maximum valve flow rate, the main equipment carrying integrally the secondary equipment and being linearly displaced by the actuator for modulating the fluid flow rate from the preset maximum one up to complete closure.

Various devices, assemblies, components, systems, and methods are provided relating to a volume flow rate smoothing device. An example smoothing device may include a body portion defining a chamber therein. The smoothing device may further include a first flow restrictor portion and a second flow restrictor portion each disposed in fluid communication with the body. The smoothing device may be configured to fluidically communicate with a pump via a first end of the smoothing device to receive a fluid flow from the pump along a fluid pathway extending through the first flow restrictor portion, the body portion, and the second flow restrictor portion. The first flow restrictor portion may be disposed upstream of the body portion. The second flow restrictor portion may be disposed downstream of the body portion.