A screen filter is a type of control device used in various industries to remove solid particles from liquid or gas streams. The filter consists of a mesh screen made of materials such as stainless steel, nylon, or polyester, which traps the solid particles as the liquid or gas passes through it.
Screen filters are commonly used in water treatment plants, where they are used to remove suspended solids from the water. They are also used in the oil and gas industry to remove sand and other solid particles from the crude oil before it is processed. In the food and beverage industry, screen filters are used to remove impurities from liquids such as juice, beer, and wine.
There are different types of screen filters available, such as drum screens, disc screens, and belt filters, and the selection depends on the application and the particle size to be removed. Some screen filters are designed to be self-cleaning, while others require manual cleaning.
Overall, screen filters play an important role in ensuring the quality and purity of liquids and gases used in various industries. They are an essential component of any control system that requires the removal of solid particles from liquid or gas streams.