We probably use a soap pump dispenser multiple times a day, and yet have you ever wondered what it looked like on the inside? In this video, we’ll explore the operation of a soap bottle pump dispenser and see exactly how it works.
source/image(PrtSc): Branch Education
When soap is dispensed in liquid form, it is generally in a squeeze bottle or pump. The most popular soap dispensers of this type are plastic pump bottles, many of which are disposable.Watch the video from Branch Education for more info:
The spring-loaded piston that you push down with your finger pushes air into the soap reservoir. This creates a vacuum in the reservoir, and when the piston retracts, soap is sucked into it.Each time you push down on, or prime, the actuator, the piston puts pressure on the spring and moves the ball upward, taking some soap product with it.
When you release the actuator, the piston and spring return to their resting position, sealing off the housing chamber to stop liquid from flowing back up into the bottle.The next time you push, some of this soap is forced into a small tube that leads to the spout while the rest of it goes back to the reservoir creating the necessary vacuum in the reservoir to pull in fresh soap./Branch Education