Package HydraulicsByFluidon.​Components.​Valves.​FlowValves
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Information

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Extends from Modelica.​Icons.​Package (Icon for standard packages).

Package Contents

NameDescription
ThreeWayFlowControlValve 
TwoWayFlowControlValve 

Model HydraulicsByFluidon.​Components.​Valves.​FlowValves.​TwoWayFlowControlValve

Information

The component TwoWayFlowControlValve is a model of a 2-way flow control valve. It maintains a largely constant outlet flow even at a variable (higher) inlet pressure.

If pressure difference pA - pB is less than Nominal pressure difference the valve acts like an orifice with the characteristics Nominal volume flow and Nominal pressure difference.

For all pressures exceeding Nominal pressure difference the valve keeps the flow constant with the given Deviation at Pressure difference @ Deviation.

In reverse flow direction the check valve becomes active.

The component TwoWayFlowControlValve 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.

Extends from HydraulicsByFluidon.​Components.​Valves.​Base.​PartialPressureFlowValve.

Parameters

TypeNameDefaultDescription
BooleanforwardFluidPropertiestrueForward fluid properties between ports
VolumeFlowRateNominalVolumeFlow5e-4Nominal volume flow
PressureNominalPressureDifference1000000Nominal pressure difference
DensityReferenceDensity860Reference density for volume flow and pressure difference
TimetimeConst0.001Response time of valve spool
VolumedeadVolume1e-6Dead volume at ports
VolumeFlowRateDeviation-8.33e-6Devitation
PressureDeviationPressureDifference1e+7Pressure difference @ Deviation
PressureCVOpeningPressure100000Opening pressure difference
PressureCVMaxOpeningPressure200000Max. opening pressure difference
VolumeFlowRateCVNominalVolumeFlow5e-4Nominal volume flow
PressureCVNominalPressureDifference500000Nominal pressure difference

Connectors

TypeNameDescription
FluidPortfluidPortAHydraulic port A
FluidPortfluidPortBHydraulic port B

Model HydraulicsByFluidon.​Components.​Valves.​FlowValves.​ThreeWayFlowControlValve

Information

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.

Extends from HydraulicsByFluidon.​Components.​Valves.​Base.​PartialPressureFlowValve.

Parameters

TypeNameDefaultDescription
BooleanforwardFluidPropertiestrueForward fluid properties between ports
VolumeFlowRateNominalVolumeFlow5e-4Nominal volume flow
PressureNominalPressureDifference1000000Nominal pressure difference
DensityReferenceDensity860Reference density for volume flow and pressure difference
TimetimeConst0.001Response time of valve spool
VolumedeadVolume1e-6Dead volume at ports
PressurePRVNominalPressureDifference10000Nominal pressure difference PRV

Connectors

TypeNameDescription
FluidPortfluidPortAHydraulic port A
FluidPortfluidPortBHydraulic port B
FluidPortfluidPortTHydraulic port T