ThreeWayFlowControlValve

    ThreeWayFlowControlValve

Library

HydraulicsByFluidon/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

ThreeWayFlowControlValve_0

NameLabelDescriptionData TypeValid Values

mo_pA

pA

pA

Structure

mo_pA/fixed

fixed

Cell of scalars

true
false

mo_pA/start

start

Cell of scalars

mo_pB

pB

pB

Structure

mo_pB/fixed

fixed

Cell of scalars

true
false

mo_pB/start

start

Cell of scalars

mo_relX

relX

relX

Structure

mo_relX/fixed

fixed

Cell of scalars

true
false

mo_relX/start

start

Cell of scalars

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

ThreeWayFlowControlValve_1

NameLabelDescriptionData TypeValid Values

mo_forwardFluidProperties

forwardFluidProperties

Forward fluid properties between ports

Scalar

true
false

ThreeWayFlowControlValve_2

NameLabelDescriptionData TypeValid Values

mo__nmodifiers

Number of Modifiers

Specifies the number of modifiers

Number

mo__modifiers

Modifiers

Add new modifier

Structure

mo__modifiers/varname

Variable name

Cell of strings

'volumeFlowA'
'volumeFlowB'
'fluidId'
'ssU'
'dVI'
'VI'

mo__modifiers/attribute

Attribute

Cell of strings

'start'
'fixed'

mo__modifiers/value

Value

Ports

NameTypeDescriptionIO TypeNumber

fluidPortA

implicit

Hydraulic port A

input

1

fluidPortB

implicit

Hydraulic port B

input

2

fluidPortT

implicit

Hydraulic port T

input

3

See Also