Pumps are one of the available means to dole out the viscous (thick, sticky) liquid. They come in different designs, sizes, colours and serve various purposes. Due to the effectiveness of the lotion pumps, you can find them in use at groceries, hospitals, shopping malls, confectioneries etc. Lotion pumps are essential for a significant number of purposes including for storage of disinfectant, beauty products, skin care creams, hand wash, sanitizer, etc. Their primary function is to give out the liquid in the bottle in a certain quantity as designed
Despite its uniqueness, lotion pumps apply the same principle for its operation. The various parts are similar irrespective of the particular pump. Find below, the different parts of a pump and how they function dependently and interdependently for you to have the exact quantity of the content in the bottle as you desire.
Lotion Pump Components and Their Functions
An actuator is something that activates. Here, the actuator is the pump’s head. It is where you need to press or push down for the lotion to come out. It is also the first thing that catches your attention in the lotion pump. As a result of this, producers of pumps try to tweak their lotion pump to look attractive. They also ensure consumer satisfaction. A common way to indicate the right use for the actuator is by placing an arrow on the head pump for direction. An actuator is made of polypropylene which is a durable plastic, also known as PP.
The cap is connected to the actuator. It holds the other part of the head pump together. It is fastened to the neck of the bottle. It could be smooth or ribbed. The ribbed cap is easier to use because it helps you open it even when your hand is soiled with the bottle’s content. The cap is also made of PP plastic just like the actuator.
It is placed inside the cap. The gasket fills the space between the closure and the bottle’s neck. It prevents the viscous content from leaking. Most times, it is produced from rubber or low-density polyethylene (LDPE).
The housing holds all the other parts of the lotion pump securely in place while acting as a channel that sends the content from the suction tube to the actuator. The size of the housing is dependent on the design and proposed output. It is made of ethylene-vinyl acetate plastic.
5.Valve stem/piston/spring/ball (The internal component of the housing):
They are fitted into the housing. These parts differ based on the lotion pump’s design. They transfer the content from the container through the suction tube into the actuator. The spring is made of flexible or coiled material which is usually stainless. It exerts force when the actuator is pressed. The spring enables the actuator to return to its original position, while the piston ejects fluid when pressure is applied through the actuator.
It is a long plastic tube that extends the length of the lotion pump, to the bottom of the bottle. The content of the bottle travels up this tube to the actuator. The bottle determines the length of the tube. The suction tube should match the height of the bottle. If the tube is short, it will not be able to draw out all the content of the bottle. If it is too long, you will not be able to screw the lotion pump to the bottle. A well-fitted suction tube will prevent hitches. The suction tube is also made of PP plastic.
How a Lotion Pump Works
A lotion pump acts as a device that applies pressure to draw out the contents of a matter. It draws the product from the bottle out. In doing this, it defies the law of gravity. When the user presses the actuator, the piston moves, then applies pressure on the spring which compresses it. This action creates air pressure that moves the ball up along with the content into the suction tube then the housing. When the user releases the actuator, the various internal component of the housing returns to its original position. When this happens, the ball returns to its location where it seals the housing and prevents the content from flowing back into the bottle. If you press the actuator, the content in the housing is drawn up through the valve and actuator for use.
Materials Used in Making the Different Components
The actuator and closure are made with polypropylene (PP) plastic.
The housing is made of ethylene-vinyl acetate (eva) plastic.
The gasket is made with either rubber or low-density polyethylene plastic.
The spring is made of stainless.
The tube is made with low-density polyethylene or PP plastic.
The valve is made of high-density polyethylene plastic.
The ball is made of glass.
How to Choose the Right Lotion Pump
In choosing the right lotion pump, you must take note of the content of the bottle. A right lotion pump is not stiff. It does not need you to apply too much pressure on the actuator. Also, choose a lotion pump that has a lockdown or lock-up safety mechanism to prevent accidental discharge. The suction tube must fit the length of the bottle. A short suction tube will not help you achieve the best result. The The durability and quality of the plastic used should also be put into consideration.
The Leading Performance Indicators of the Lotion Pump
For every lotion pump, some things determine their performance. They are; the air pressure, the quantity it pumps out, the downward pressure, the head opening, torque, and the rebound speed.
The Lotion Pump’s Output
A pump’s output is measured in cubic centimetres (cc) or millilitres (ml). It tells you the quantity of liquid that is doled out every time you press the pump. Different lotion pump producers have a lot of output option for their various pumps, thereby allowing the user to choose their desired choice.
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