checkvalve

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checkvalve

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Iconic Diagrams\Hydraulics\Valves\Basic Valves

Use

Domains: Continuous. Size: 1-D. Kind: Iconic Diagrams (Hydraulics).

Description

This model describes a spring-loaded check valve. The resistance depends on the pressure difference:

 

dp < pclosed => valve closed, only leakage: pa.phi = pb.phi = dp * GLeak

pclosed < dp < popen => working range, i. e. valve partially opened

popen < dp => valve wide open: pa.phi = pb.phi = Cd * A * sqrt(dp - pclosed);

CheckValve

Interface

Ports

Description

pa, pb

Both terminals of the hydraulic component.

Causality

 

fixed volume flow out pa

fixed volume flow out pb

 

Parameters

 

pclosed

popen

GLeak

A

Cd

Valve is closed under this pressure [Pa].

Valve is fully open above this pressure [Pa].

Conductance of closed valve [m3/s.Pa].

Maximum valve area when the valve is open [m2], A >= 0!

Discharge coefficient [].