The Top Classifications of Industrial Strainers

Industrial strainers keep unwanted particles from disrupting the industrial processes and the quality of the end product. These devices also preserve the functionality of equipment as debris can gradually destroy such equipment. Using an industrial strainer is not only a stress-free solution but is also an economical one.

Some business and facility operators may become confused about choosing between strainers and filters. Strainers are often used when the particles are visible via the naked eye, while filters are more suitable to very small particles. Strainers come in a variety of screen sizes and materials of construction. When choosing strainers, it is important to have a good understanding of the functional capabilities of specific strainer types.

The two common classifications of industrial strainers are Y-type and basket. Y strainers are usually made of perforated stainless steel. They are permanent strainers that filter debris from liquid, gas and steam. Y strainers are known for its easy installation and maintenance. They can be positioned horizontally and vertically, and easily used in large filtration systems. Y-type straining models are generally less costly than other types like basket strainers.

Basket strainers are used for fluids with a large amount of debris to be removed. This type of strainer is typically utilized for a large surface area. They are easier to clean and service, and require horizontal installation. Basket straining units come in simplex and duplex designs. A simplex design comprises of singer basket strainer installed inline, while a duplex configuration has two basket strainers installed in parallel position. The duplex design permits the operator to divert flow from one strainer to another. This allows cleaning of one strainer’ screen without putting the entire operation on hold.

Choosing the type of industrial strainers heavily depends on the application objectives. However, the strainer’s Cv factor also needs to be taken in consideration when making decision. The Cv factor refers to the maximum flow through the strainer at 1 psi of pressure loss. High quality industrial strainers typically have high Cv rating. Thus, if comparing strainers of the same size, the Cv factor can become a deciding element. Other popular categories of industrial strainers are conical, tee type and fabricated strainers. Conical strainers, which are also known as suction strainers, are usually composed of different cast steel grades. Conical strainers are often installed on the suction side, and possess a low pressure drop. Tee strainers are great protection units in the pipeline system. They follow the flanged T shape, which possesses highly effective straining capability for materials like debris and grit. Thus, this type of strainer provides greater protection to valves, and other mechanisms in the pipeline.

Some industrial strainers can also be classified as either temporary and fabricated strainers. Straining devices, which can only be installed for a short period of time, fall on the temporary category. To perform their main function, they are usually positioned at the beginning of the process. Temporary strainers are manufactured to easily fit between two pipes and are usually made with perforated flanges. Strainers are fabricated to meet specific application objectives for a piping system. This type of strainers can tolerate extreme temperature and handle varying pressure levels. A number of industries dealing with oil, gas, power generation and chemicals require fabricated strainers.