Solenoid pneumatic valve factors to consider when the choice
by:AIRWOLF2021-01-15
solenoid pneumatic valve product selection considerations first is output requirements for electromagnetic pneumatic valve.
the solenoid pneumatic valve test fluid types mainly for the gas and liquid and temperature, viscosity, concentration, corrosion resistance and so on.
velocity refers to the speed of fluid flow through the pneumatic valve, pneumatic valve is the main performance index.
Pressure (
Difference is the power of the pneumatic valve is closed to overcome, is also the major indexes of the pneumatic valve.
sealing relative leakage measure of pneumatic valves, pneumatic valves can be used per unit time of leakage for the unit, or, in some cases more suitable for the gas, with a certain volume of gas inside the sealed container in a certain period of time of pressure drop.
fever occurs when the electric pneumatic valve, load cycle or a maximum power on time, and the power of pneumatic valve and thermal determines the temperature rise of pneumatic valve.
solenoid pneumatic valve temperature and environmental temperature determines the magnet material need insulation temperature rating.
input solenoid pneumatic valve different current waveform, can produce different working mode.
in the actual application may have a dc/ac power source type, constant voltage power supply, constant current power supply, battery, battery, dc motor, capacitor, voltage range, by a rectifier filter, maximum available for current and other factors.
solenoid pneumatic valve drive circuit in the control of contact protection solenoid pneumatic valve drive control contact may send a spark, wear and noise.
can provide proper protection as follows: resistance & amp;
Capacitance method;
Insert the diode.
environment factors and life needs to be in the electromagnetic pneumatic valve materials and surface treatment of mode selection of important factor.
environmental factors include temperature, humidity, magnetic and electric fields;
Gas, liquid and solid pollution or corrosion, impact shock and vibration, etc.