Flow Control Valves

Valves for flow rate control

Use these blocks to model valves that control the flow magnitude in a network.

Simscape Blocks

Ball Valve	(To be removed) Valve with a sliding ball control mechanism
Counterbalance Valve	(To be removed) Hydraulic counterbalance valve
Flow Divider	(To be removed) Hydraulic two-path flow divider
Flow Divider-Combiner	(To be removed) Hydraulic two-path flow divider-combiner
Gate Valve	(To be removed) Hydraulic gate valve
Needle Valve	(To be removed) Hydraulic needle valve
Poppet Valve	(To be removed) Hydraulic poppet valve
Pressure-Compensated 3-Way Flow Control Valve	(To be removed) Hydraulic pressure compensating 3-way valve
Pressure-Compensated Flow Control Valve	(To be removed) Hydraulic pressure compensating valve

Featured Examples

Hydraulic Flapper-Nozzle Amplifier

An amplifier that consists of two fixed orifices, two variable orifices representing nozzles, flapper, and main valve simulated with mass, viscous friction, and centering spring. Two translational converters represent servo-actuators on both sides of the main valve. A feedback spring connects the flapper and the main valve.

Open Model

Priority Valve Controlling Two Hydraulic Motors

A pressure-compensated 3-way flow control valve. This valve maintains constant flow rate through the main hydraulic motor, which is connected to the pressure-compensated outlet of the flow control valve. It acts as a priority valve, diverting the excess flow to the auxiliary hydraulic motor if the main hydraulic motor receives enough fluid to maintain a preset angular velocity. The auxiliary motor is shut off completely if there is insufficient flow to power the main hydraulic motor.

Open Model

Hydraulic Flow Rectifier Circuit

A flow rectifier circuit, which consists of four check valves and a flow control valve. It is used to control flow rate flowing in both directions with only one flow control valve. Similar to a Graetz circuit implemented with diodes, the check valves are arranged in such a way that flow always passes through the flow control valve in the same direction. Two other check valves, Flow BA Check Valve and Flow AB Check Valve, are used to select an orifice depending on the flow direction.

Open Model