ThreeWayFlowControlValve
Library
Components/Valves/FlowValves
Description
The component ThreeWayFlowControlValve is a model of a 3-way flow control valve. It maintains a largely constant outlet flow even at a variable (higher) inlet pressure.
The 3-way flow control valve SR3 opens a discharge to the tank as soon as the set volume flow to the consumer is reached. The set volume flow is largely independent of pressure fluctuations of the consumer or the supply pressure.
Nominal volume flow determines the set volume flow, Nominal pressure difference the pressure drop of the meetring resistor.
Nominal pressure difference PRV describes the typical pressure deviation of pressure relief valve @ Nominal volume flow. This pressure difference also determines the dependency of outlet flow on supply pressure.The component ThreeWayFlowControlValve is not a model of a flow control valve according to its physical structure. It merely represents the characteristic behavior of a flow control valve. Therefore dynamic effects such as forces due to inertia will not be represented.
Parameters
| Name | Label | Description | Data Type | Valid Values |
|---|---|---|---|---|
mo_NominalVolumeFlow | NominalVolumeFlow | Nominal volume flow | Scalar | |
mo_NominalPressureDifference | NominalPressureDifference | Nominal pressure difference | Scalar | |
mo_ReferenceDensity | ReferenceDensity | Reference density for volume flow and pressure difference | Scalar | |
mo_timeConst | timeConst | Response time of valve spool | Scalar | |
mo_deadVolume | deadVolume | Dead volume at ports | Scalar | |
mo_PRVNominalPressureDifference | PRVNominalPressureDifference | Nominal pressure difference PRV | Scalar |
| Name | Label | Description | Data Type | Valid Values |
|---|---|---|---|---|
mo_forwardFluidProperties | forwardFluidProperties | Forward fluid properties between ports | Scalar | true |
| Name | Label | Description | Data Type | Valid Values |
|---|---|---|---|---|
mo_volumeFlowA | volumeFlowA | volumeFlowA | Structure | |
mo_volumeFlowA/fixed | fixed | Cell of scalars | true | |
mo_volumeFlowA/start | start | Cell of scalars | ||
mo_volumeFlowB | volumeFlowB | volumeFlowB | Structure | |
mo_volumeFlowB/fixed | fixed | Cell of scalars | true | |
mo_volumeFlowB/start | start | Cell of scalars | ||
mo_pA | pA | pA | Structure | |
mo_pA/fixed | fixed | Cell of scalars | true | |
mo_pA/start | start | Cell of scalars | ||
mo_pB | pB | pB | Structure | |
mo_pB/fixed | fixed | Cell of scalars | true | |
mo_pB/start | start | Cell of scalars | ||
mo_relX | relX | relX | Structure | |
mo_relX/fixed | fixed | Cell of scalars | true | |
mo_relX/start | start | Cell of scalars |
Ports
| Name | Type | Description | IO Type | Number |
|---|---|---|---|---|
fluidPortA | implicit | Hydraulic port A | input | 1 |
fluidPortB | implicit | Hydraulic port B | input | 2 |
fluidPortT | implicit | Hydraulic port T | input | 3 |