Views: 0 Author: J-VALVES Publish Time: 2024-05-29 Origin: Site
Selection Based on Medium Characteristics
Liquid Medium: Usually, a strainer screen of around 60 mesh is selected, which can effectively remove fine particles in the liquid.
Gas Medium: Usually, a strainer screen of around 120 mesh is selected to ensure the filtration effect.
Special Applications: For example, in the fuel gas system of a gas turbine, the filtration accuracy needs to reach 5um.
Selection Based on Equipment Requirements
For systems where downstream equipment is sensitive to impurities (such as precision instruments, nozzles, etc.), a high-precision strainer screen (such as above 325 mesh) should be selected.
For general industrial systems (such as cooling water systems), a strainer screen with a lower precision (such as 100 mesh) can be selected.
Stainless steel strainer screen
· 304 stainless steel: Suitable for general corrosive environments, with a relatively low cost.
· 316L stainless steel: Contains molybdenum element, has better corrosion resistance, and is suitable for highly corrosive environments.
High-performance alloy strainer screen
· Nickel-chromium alloy: Such as the Inconel series, suitable for high-temperature and highly corrosive environments.
· Titanium alloy: Has high strength and excellent corrosion resistance, and is suitable for highly corrosive media such as seawater.
(3) Increase the filtration area
Increasing the filtration area can reduce the velocity of the fluid passing through the strainer screen, decrease the pressure drop, and extend the service life of the strainer screen:
Select an appropriate strainer screen area
· According to engineering experience, the filtration area of the Y-type strainer screen should be no less than 36 times the cross-sectional area of the pipeline.
· For systems with high flow rates or high impurity content, a strainer screen with an extended length or a basket-type strainer can be selected.
Optimize the strainer screen structure
· Adopt a corrugated or pleated strainer screen to increase the filtration area per unit area.
