Lotion pumps typically consist of the following six components:

Actuator
The head of the lotion pump is usually made of polypropylene. Working as a pump head, it performs the main task of expelling material from the lotion pump reservoir when pressed from above.

closure

This unit performs the most important task of securing the entire material to the neck of the lotion pump. Ensuring the safety of the entire assembly is critical.

Outer gasket

It helps prevent material leakage from the bottle landing area. Usually made of low-density polyethylene or rubber, it is usually friction fit within the closure.

housing

The housing unit assembles all parts of the lotion pump in one place. Among other things, it serves as a transfer container to send material from the dip tube to the actuator.

inner housing assembly

Internal housing assembly, including ball, spring, piston and stem, internal housing compartment. Specifications may vary by manufacturer.

dip tube

Made of polypropylene, it's a long tube that runs from the head of the lotion pump to its extreme bottom.

How Lotion Pumps Work

Step 1 - Synchronized with the principle of the suction device, it operates against gravity. When the head is pressed, the frictional force created by the inner wall causes the piston t to open.

Step 2 - When the actuator is depressed, the piston moves, which in turn compresses the spring. It exerts upward pressure inside the dip tube. Additionally, the material in the dip tube reaches the lotion pump chamber.

Step 3 - Once the actuator is released, the ball drops, stopping the flow of material, and ensuring it does not return to the bottom of the lotion pump.

Step 4 - When the fluid storage chamber is full, press the head again to drain the fluid.