A spray pump is a mechanical device used to disperse liquids in a fine mist or spray, typically from a container like a bottle. It is a key component in many consumer products, including cleaning solutions, personal care items, air fresheners, and even industrial applications. The spray pump typically works by converting the liquid into a fine mist or jet stream through a nozzle, and it allows for controlled, efficient, and even application of the liquid.

Key Features and Components of a Spray Pump:

1. Trigger or Actuator:

   • The trigger is the part that the user presses to activate the pump. When pressed, it creates pressure that forces the liquid from the bottle through the spray pump mechanism.
   • Triggers can vary in design, but most are ergonomically shaped to allow for easy squeezing and dispensing, especially in household or industrial applications where frequent use is common.

2. Pump Mechanism:

   • Inside the spray pump, the mechanism typically consists of a small piston or diaphragm. When the trigger is squeezed, it pushes liquid up from the bottle and forces it through the nozzle, creating a spray.
   • Some spray pumps use a siphoning system, where a tube inside the bottle draws up the liquid into the pump assembly, while others use a pressurized system to push the liquid out.

3. Nozzle:

   • The nozzle at the end of the spray pump controls the size and pattern of the spray. Nozzles can often be adjusted to switch between a fine mist, a stream, or a more concentrated spray depending on the intended use of the product.
   • The nozzle is crucial in determining how the liquid is dispensed, making it an important component for products that require precise application, such as cleaning products, hair care, or perfumes.

4. Straw or Tube:

   • Inside the bottle, a straw or tube connects the bottom of the bottle to the pump mechanism. This tube ensures that the liquid is drawn up and delivered to the spray mechanism each time the trigger is pressed.
   • The length of the straw may vary, depending on the size of the bottle, and is designed to ensure liquid is available until the bottle is nearly empty.

5. Reservoir:

   • Some spray pumps include a small reservoir at the base of the pump mechanism that helps store liquid during the spraying process. It acts as a chamber that holds a small amount of liquid to keep the pump primed.