Pressure relief valve

In normal position the valve is closed. If the opening pressure is reached at P, T opens. When the pressure drops below the preset level, the valve closes again. The flow direction is indicated by the arrow.

The hydraulic resistance relates to the completely opened valve.

Adjustable parameters

Designation Range Default value
Opening pressure 0 ... 40 MPa 3
Pressure regulation range 0.01 ... 10 MPa 3.8
Hydraulic resistance 1e-6 ... 1000 bar.min2/l2 0.17

Failure models

Failure model Description
Linear scaling Instead of the nominal value u the lineal scaling y = slope_err*u+ offset_err is used.
Designation Range Default value
Offset -40 ... 40 MPa 0
Slope 0 ... 10 0.5