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Summary of Common Problems in Operating Dispenser Valve

writer:点胶设备 time:2019-08-10 18:08 clicks:
The dispensing valve relies on the spool to close the flow path entrance of the connected needle needle pipe directly, so as to achieve a very precise micro-dropping up to 0.0005 ml. The dispensing valve can not avoid some troubles in the use process. Here are some troubles and solutions encountered.
 
 
 
Double liquid control dispensing valve
 

 双液控制点胶阀

 
Reasons for Probable Dispenser Valve Problems and Removal Methods
 

 厌氧胶点胶阀

Non-liquid flow out of dispensing valve
 
Too low liquid pressure increases liquid pressure in liquid containers
 
Operating pressure is too low; increase the pressure of dispensing valve controller to 70 psi (4.8 bar)
 

 回吸式点胶控制阀

 
Blockage or damage of needles
 
Replacement needle; liquid solidified in dispensing valve chamber to remove valve and thoroughly clean valve
 
Close the dispensing valve switch
 
Turn on the regulator counter-clockwise
 
Liquid pressure instability
 
Ensure constant hydraulic pressure
 
The working pressure of dispensing valve is too low
 
Operating pressure of dispensing valve of controller rises to 70 psi (4.8 bar)
 
 
 
Anaerobic glue dispensing valve
 
 
 
Inconsistent opening time of valves
 
Check the dispensing valve controller to ensure that it provides stable air pressure output to reduce dispensing valve problems
 
Gas trapped in valve shield
 
Gas is discharged from the valve, and the liquid drops after the valve closes and stops after a period of time.
 
 
 
Backdraft dispensing control valve
 
 
 
Gas trapped in liquid shield
 
Exhaust gas from valve
 
The leak at the needle joint is defective
 
Replacement of needles to ensure needle series and reduce dropping dispensing valve problems
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