English
한국어
Product Consultation
Your email address will not be published. Required fields are marked *
The foam pump head is made using atmospheric pressure.
When the pump head is pressed, the spring compresses and the piston drops, expelling the air from the reservoir chamber. When the pump head is pressed again and released, the spring in the pump head returns to its original state and the piston then rises back up, creating a vacuum in the reservoir chamber and generating negative pressure. At this point, the pressure in the reservoir chamber is low and the pressure in the container is high, and due to the pressure difference, the atmosphere presses the liquid around the mouth of the reservoir chamber into the reservoir chamber. When pressed again, the liquid is squeezed out.
