Causes of damage to the dispensing valve tappet and nozzle:

1、Wear: During long-term use, the nozzle material is worn due to frequent contact with glue, especially when using high-viscosity or abrasive glue.

2、Corrosion: Glue containing chemically corrosive components will corrode the nozzle material and cause damage.

3、Tappet impact: High-speed contact between the tappet and the nozzle may cause mechanical fatigue or physical damage, especially if the nozzle material is not hard enough.

4、Improper human operation: Improper dispensing machine parameter settings (such as excessive pressure) or improper installation may cause uneven force or damage to the nozzle.

5、Clogging: Impurities mixed in the glue or not cleaning in time will cause the nozzle to be clogged, increase the friction between the tappet and the nozzle, and accelerate damage.

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Preventive measures: Choosing nozzles made of highly wear-resistant and corrosion-resistant materials, and regularly maintaining and cleaning the equipment can effectively reduce the risk of nozzle damage.