pressurereliefvalve

Navigation:  Library > Iconic Diagrams > Hydraulics > Valves > Basic Valves >

pressurereliefvalve

Previous pageReturn to chapter overviewNext page

Library

Iconic Diagrams\Hydraulics\Valves\Basic Valves

Use

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

Description

This model describes a pressure relief valve. The resistance depends on the pressure difference:

 

dp = pa.p - pb.p

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 = dp * GOpen

PressureReliefValve

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

GOpen

Valve is closed under this pressure [Pa].

Valve is fully open above this pressure [Pa].

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

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