Before you get involved in the procurement of microvalves, you should look at the basic concepts in this context. Our compact glossary gives you a good overview.

• compare_arrowsNominal size [mm]
  The nominal size is given as nominal diameter (DN). DN is the diameter of the smallest cross-section, measured in [mm] through which the medium flows in a valve.
• timelinePressure difference [bar]
  The pressure difference is the maximum pressure drop across the valve at which the function is guaranteed. AC valves have higher values than DC valves. The minimum differential pressure is the smallest pressure drop at which the valve is still working reliably.
• placeKv value [m³/h]
  The flow factor Kv is a specific volumetric flow based on the medium water (temperature 5 °C to 40 °C), which flows through a valve with a certain nominal size (diameter), at a pressure drop of 1 bar.
• powerStatic pressure [bar]
  The static pressure is the maximum pressure that can be applied to the connections of the valve during operation.
• line_styleViscosity of the medium [mm²/s], [°E]
  The viscosity is the flow resistance of a medium due to the internal friction in the valve. The kinematic viscosity is expressed in units of mm²/s (Centistokes/cSt) and °E (°Engler).
• av_timerSwitching times
  The switching frequency is specified as the maximum number of switching cycles per second. The switch-on time is the time between the closing of the circuit and the reaching of the stroke end position of the plunger. The switch-off time is the time between the opening of the electric circuit and the reaching of the plunger rest position.