A Closer Look at the components and functioning of Screw Lotion Pumps

Screw lotion pump also known as the twist lotion pump have revolutionized the design of lotion dispensers. We often tend to ignore these small technological changes around us in designs that have simplified our lives beyond imagination. If you are still wondering what exactly we are talking about, look at your moisturizer bottle or the handwash dispenser. Yes, that is exactly what we call a screw lotion pump. Just push the nozzle down and it spits the lotion out, simple isn’t it? It may look simple and small but it contains numerous small components.

1. Actuator: Every lotion pump has a head on the top that you need to press to get the lotion out. It may appear to be different in different lotion pumps because of the design but the internal structure remains the same. It has a lock to prevent accidental output.

2. Closure: It is the basically the base of the neck that has screws on the inside and smooth outer surface. The actuator is initially locked into this closure with the help of screws.

3. Outer Gasket: The gasket is fitted on the inside of the closure to provide friction when to the actuator. This prevents the actuator from slipping in or out suddenly. It is usually made out of rubber.

4. Housing: The pump assembly in contained in the hollow plastic component known as housing. It also acts the intermediate chamber where the lotion is first sucked and then pushed out through the actuator.

5. Interior Components of the Housing: The heart of the twist lotion pump lies in the set of components contained inside the housing. It consists of spring, piston, stem and a ball. Some advanced pumps such as long nozzle liquid pump can have a few more components for better functioning.

6. Dip Tube: It is a normal tube that carries the lotion from the bottle up into the chamber. It is a long tube that is connected to the base of the housing and reaches down to the base of the bottle.

The complete action of the twist lotion pumps is based on the principle of creating a vacuum or low pressure to pull the lotion against gravity into the chamber and ultimately spitting it out. When we push the top, the spring is compressed creating an upward air pressure. It pulls the ball along with the lotion upwards to make everything work perfectly.