40mm Plastic Foam Pump Dispenser Facial Cleanser Liquid Outer Spring Foam Pump

What is a Trigger Sprayer?

A trigger sprayer is a handheld, mechanical pumping device that dispenses a liquid in a spray, stream, or mist pattern when its trigger is squeezed. It is commonly found on bottles containing cleaning products, garden chemicals, personal care products, and more.

The key difference from a foam pump is the output: a trigger sprayer creates a spray of liquid droplets, while a foam pump creates an aerated foam.

How Does a Trigger Sprayer Work? (The Mechanism)

The operation is a classic example of a positive displacement pump utilizing a piston and one-way valves. Here’s the step-by-step process:

1. Squeezing the Trigger (Downstroke):

   • Squeezing the trigger pushes a piston forward inside a cylinder.

   • This pressurizes the liquid already in the cylinder.

   • The inlet valve (at the base of the dip tube) closes to prevent backflow.

   • The pressurized liquid is forced out through the nozzle.

2. Releasing the Trigger (Upstroke/Recovery):

   • Releasing the trigger allows a spring to return the piston to its original position.

   • This creates a vacuum inside the cylinder.

   • The vacuum closes the outlet valve in the nozzle and opens the inlet valve at the bottom of the dip tube.

   • This suction draws liquid up the dip tube from the bottle and into the cylinder, ready for the next squeeze.

3. The Nozzle: The liquid is forced through a small orifice in the nozzle. Many trigger sprayers have an adjustable nozzle that can be rotated to change the spray pattern:

   • Spray/Mist: A fine mist for wide, even coverage (e.g., for glass cleaner).

   • Stream: A concentrated jet of liquid for targeted application (e.g., for removing stains).

   • Shut/Off: A position that blocks the flow entirely for safe storage.

Many modern sprayers also feature a trigger lock to keep the sprayer on for continuous spraying without having to hold the trigger down.

           NINGBO SUNWINJER DAILY PRODUCTS CO,.LTD is a professional cosmetic packaging company located in Ningbo , we always take the high quality as our mission, in order to follow up the modern market changeable characteristics, based on high and new technical settings to make our enterprise into a international standard sprayer company.Facing intense competition, though it`s full of challenged and frustrations, We`ll devote ourselves to achieve further satisfaction of esteemed customers, thanks for your attention and cooperation.

           We are a factory which integrative from the raw material. the completion of mold and products, We have own advanced molding equipment and experienced technical team, And now we already have many sets if injection machines. automatic producing machines and testing device, We also have mold workshop, we treat the quality as our life ,good service as mission, with our professional service to provide the best quality products and service to all over the world.

Main products : Fine Mist Sprayer , Plastic Lotion Pump , Mini Trigger Sprater , Trigger Sprayer , Foam Soap Pump , Flip Top Cap , Disc Top Cap and so on .
Also provide all kinds of bottle and jar , such as Plastic Bottle, Glass Bottle , PETG bottle , Airless Bottles , Cream Jar , E-liquid Bottle etc

Widely used in Daily cleaning, cosmetics and skin care packaging , food, medicine and chemical industry.

Our Serives :

1. OEM Manufacturing welcome: Product, Package...
2. Sample order.free of charge . 
3. We will reply you for your inquiry in 24 hours.
4.All parts will be inspected one by one before assembling the goods.
   In addition, we can also provide C/O, form A, form E, packing list, business novice, bill of lading, etc.
5. All plastic pallets and packaging with safe packaging to ensure safe delivery of goods.
6. In production, we have carried out quality control over the quality in the process.
    We specialize in perfume caps, pumps and bottle collars.Make them perfect for each other and work better.
7. We can assemble them for health check and vacuum test to check for leakage to make sure the quality is normal.
8. According to customer requirements or samples to make new mold and design.
9.After sending, we will track the products for you once every two days, until you get the products. When you got the goods, test them, and give me a feedback.If you have any questions about the problem, contact with us, we will offer the solve way for you.
10. We can provide other services in China according to customers' requirements.Business, quality, price, delivery, friendship,win-win

Contact information :

Wechat&whatsapp : +86 15168562344          Email : jacky@nbsunwinjer.com (Mr. Jacky )

Wechat&whatsapp : +86 13325940304          Email : lofty@nbsunwinjer.com (Miss.Lofty)

Wechat&whatsapp : +86 18758823199          Email : cody@nbsunwinjer.com (Mr. Cody)

Welcome to visit our other websites :

https://nbsunwinjer.en.alibaba.com/     ALIBABA