Proporcionálny tlakový regulačný ventil VPPM

VPPM proportional pressure regulator

The right parameters at all times – simply choose from 3 presets at the push of a button

The benefits to you:

  • Inline or flanged version, current controlled, voltage controlled, fieldbus/Ethernet communication via CPX terminal
  • Operator convenience: 3 presents for optimal adaptation to different volumes – with no programming work
  • Cascade regulator: improved dynamic response, maximum precision and optimum small signal characteristics
  • Two-stage control circuit with multi-sensor control: integrated sensors for optimum control results and characteristics
  • Process reliability: constant pressure under changing temperatures thanks to temperature compensation
  • Modular system: the correct valve for every application
Terms for proportional-pressure regulator
Response sensitivity Response sensitivity The response sensitivity of the device determines how sensitively a pressure can be changed or (in other words) set. The smallest differential in setpoint value which is able to change the output pressure is referred to as the response sensitivity.
In this case it is 0.01 bar.
Pressure range adaptation
Pressure range adaption
On delivery, 100% setpoint value equals 100% fluid output signal. The pressure range adaptation or adjustment makes it possible to match the fluid output variable to the setpoint value. 
Hysteresis
Hysteresis
Within a certain tolerance, there is always a linear relationship between the setpoint value entered and the pressure output. Nevertheless, there is a difference between whether the setpoint value entered is increasing or decreasing. The difference in maximum deviations is referred to as hysteresis.
Linearity error
Linearity error
The perfect linear trend of the control characteristic of the output pressure is theoretical. The maximum percentage deviation from this theoretical control characteristic is referred to as the linearity error. The value is expressed as a percentage of the maximum output pressure. (Full scale)
Zero point suppression
Zero point suppression
In real-world applications, it is possible for there to be a residual voltage or residual current at the setpoint input of the VPPM via the setpoint generator. The zero-point suppressor is used so that the valve is reliably vented at setpoint zero.
Repetition accuracy
(reproducibility)
Repetition accuracy
The repetition accuracy is the margin within which the fluid output variable is scattered when the same electrical input signal coming from the same direction is repeatedly adjusted. The repetition accuracy is expressed as a percentage of the maximum fluid output signal.