Which One Is Better, Piezoelectric Valve Or Pneumatic Injection Valve

Piezoelectric valve is just a general term. Piezoelectric injection valve and piezoelectric dispenser can be regarded as piezoelectric valve. Some customers will compare the dispensing with pneumatic jet valves when they buy piezoelectric jet valves. Which jet valve is better to choose? In the actual application of dispensing, there are many types of glue, what will you do? Choice?

Piezoelectric injection valve and pneumatic injection valve dispensing comparison?

1. The piezoelectric jet valve is a non-contact dispensing. Its working frequency is within 500HZ per second. It does not require external air pressure when dispensing, and the dispensing accuracy is higher.

2. Pneumatic jet valve is a non-contact dispensing. Its working frequency is within 200HZ per second. It needs external air pressure to assist when dispensing, and the dispensing accuracy is high.

There are many types of glue for these two valves, which are suitable for glues of various viscosities. They all have a heating function at the bottom of the needle, which can effectively assist the fluidity of the glue. The minimum aperture of the needle has a specification of 0.075mm. There are many types of strikers, which can be suitable for Glues of various viscosities and colors are easy to use and operate, and easy to clean and maintain.

In actual dispensing applications, we will encounter many types of glue, such as Wilbon (5300) PUR hot melt adhesive, Loctite (3542) PUR hot melt adhesive, Fuller hot melt adhesive, these are solid Glues need to be heated at a high temperature of 125 degrees to melt and the viscosity is about 20,000. For these high-viscosity glues, we have high-speed injection valves for this viscosity to dispense.

Another kind of glue is commonly used UV glue. This glue has good fluidity and has the functions of strengthening protection, and has the advantages of good dispensing smoothness and no residue in actual dispensing. For UV glue, we have a special dispensing valve, which can realize high-speed jet dispensing without touching the product. This jet valve has a base heating function, which can achieve smoother glue dispensing.