Screen filtration solutions can filter from which range?

• A. 10,000 micron down to 10 micron
• B. 10-75 micron
• C. 75-300 micron
• D. 400-800 micron

Answer: (C)

Screen filtration uses a physical barrier with openings measured in microns to remove solids from irrigation water before it reaches the emitters. The openings determine what size particles are trapped. In typical irrigation practice, the practical range for screen filter openings is about seventy-five to three hundred microns. This size captures most sand and debris that would cause emitter clogging while keeping pressure losses and maintenance reasonable. Using much smaller openings (around ten microns) would clog far more quickly and require more frequent cleaning and higher operating pressure, while much larger openings (four hundred to eight hundred microns) would let through too many particles and risks emitter clogging. So, the standard screening range is roughly seventy-five to three hundred microns.