Factory test of plastic pump head

Every pump head produced goes through a multi-step inspection.
1. After the plastic pump head is proofed, the sample must first be confirmed to the customer to see if the plastic pump head meets the customer's requirements.
2. Cosmetic pump heads produced in large quantities must first be inspected for appearance to ensure good appearance, no scratches, no black spots, clean and hygienic.
3. The number of times of pumping for the first time must be less than or equal to six times, and the number of times of pumping produced by our Yuanchang is generally less than five times.
4. The liquid pumped by the plastic pump head must be uniform and meet the specifications every time, and a strict pumping volume test will be carried out.
5. Prepare the customer's bottle, match the liquid, and test it in a vacuum environment to ensure that there is no leakage or overflow.
6. Then perform a backflow test on the cosmetic pump head to see if it will flow back to the nozzle.
7. Carry out strict suction test.
8. The thickness of the pump head gasket is generally greater than 1.8mm.
9. Tube length test of pump head.
10. All accessories are complete.