plastic bottle spray 28/400 detergent heavy duty trigger sprayer nozzle gun

The principle of a trigger pump is a small engine with a piston in a cylinder which pumps liquid through a dip tube in the cylinder and, using the pressure created by squeezing the handle, the liquid is forced through the nozzle base into the nozzle itself. The nozzle can emit a fine mist, a spray or a jet and, with a special insert, it can also emit foam.The trigger pump contains several injection moulded parts assembled on a special fully automatic assembly machine.
The latest polymer materials which the triggers are made of are highly compatible with a wide range of liquids.There are 2 functions of the trigger pump: direct compression and pre-compression.

1. Direct compression: The liquid goes directly from the dip tube inside the cylinder and, by squeezing the handle travels via the nozzle base through the nozzle itself. This function is common for most simple liquids like surface cleaners, de-icers, and many more.
   
2. Pre-compression: The benefit of this type of function is that it gives the trigger a full spray without liquid fall off, or any large droplets of the liquid forming, because of a special valve inserted in the chamber of the trigger.  
   

The consumer triggers sprayers are available in standard neck sizes such as 28-400, 28-410 and RD28 and lock cap. 

Trigger sprayer pumps are used for a wide variety of liquid applications. The most popular would have to be cleaning products. These would include sanitising agents, soaps and cleaning foams. The trigger spray pumps can also be used for hair products such as gels and sprays, strong cleaning agents such as stain removers or alloy wheel cleaners. The medical industry also uses these for pain relief products. In fact, you will probably find a trigger spray being used for some type of solution in most industry sectors.

The spray pattern can be quite important to some liquid products. You may want a widespread, short spread, mist or foam solution. The liquid type being used is the most important factor here. A good comparison would be a frying oil or a foam cleaning product. A frying oil would need a widespread short-range spray. This would cover the frying pan perfectly before cooking. The foamed spray would need a short-range mechanism as the contents would be of different consistency, and the liquid would be applied more directly.

Trigger Sprayer Applications

Sanatisers

Oven cleaners

Upholstery cleaners

Alloy wheel cleaning solutions

Car wax applications

Barbeque cleaners

Frying oil

Bathroom sink and bath cleaners

Toilet cleaners

Massage oils

Pain relief gels

Hair gels

Hair sprays

Floor cleaners

Window cleaners

Garden products – Rose protection

Surface cleaners – granite or marble

Wood surface enhancers

Air fresheners