What is the selection method of trigger sprayer?

Update:20 Jul 2020

There are many types of sprayers and a wide range of op […]

There are many types of sprayers and a wide range of options. Generally speaking, a jet sprayer with strong impact can be used to select the sprayer used for the degreasing and water washing process. The factors for selecting a trigger sprayer are flow rate, pressure, spray angle, coverage, impact force, temperature, material, usage, etc. These factors are usually intertwined and mutually restricted. Flow rate and pressure, spray angle and coverage are proportional. The purpose of any trigger sprayer is to keep the plating solution in continuous contact with the workpiece. This factor is more important than pressure.



The temperature of the liquid will not affect the spray performance of the trigger sprayer, but it will affect the viscosity, specific gravity and material selection. The material of the trigger sprayer should also be determined according to the chemical characteristics of the plating solution. For non-corrosive baths, bronze casting or plastic die casting can be used according to the difficulty of processing. To prevent corrosion, non-metallic materials can be used. For strong corrosive liquids such as sulfuric acid and hydrochloric acid, nylon plastic can be used. The trigger sprayer material used in the phosphating bath is usually made of acid-resistant stainless steel, and the sprayer used to prevent corrosion can also be directly selected from stainless steel or nylon materials.
For sprayers with a certain impact, a small-angle trigger sprayer should be used, and the liquid column flow rate (ie spray) is the best. The cone-shaped industrial trigger sprayer is suitable for drifting, surface layer, phosphating, humidification, dust removal, etc. The Venturi mixing trigger sprayer should be installed in the paint storage tank and tank. Take the "H" type stirring trigger sprayer (also known as the Venturi trigger sprayer) as an example. The bath liquid is sucked through a certain pressure and into the channel. The liquids are mixed and sprayed together at a flow rate of 1:4 to achieve the effect of mixing solutes without air, thereby preventing precipitation, because stirring ensures uniform mixing of chemical solutions.