Specification RequirementsThe following information is fundamental to ensure the correct specification of strainer equipment for its intended purpose.
Filtration SizeThe common purpose of a strainer is to remove debris from a process stream. Strainer elements are available with a range of filtration sizes from as large as 10mm perforations down to 25 micron (0.025mm) fine woven wire mesh. Correct selection of the filtration size is very important and should relate to the maximum particle size that downstream equipment (eg. pumps) is capable of handling.If the filtration size is too large then escaping debris could seriously affect the performance of downstream equipment. A filtration size that is too small could result in increased maintenance to clean the strainer and/or increased pressure drop, which can be detrimental to the downstream process.
Strainer Mesh Comparison Guide
|Mesh Size||Micron Rating||Gap Size mm||Gap Size inch|
|20 Mesh||740 microns||0.74 mm||0.030 in|
|30 Mesh||500 microns||0.50 mm||0.020 in|
|40 Mesh||400 microns||0.40 mm||0.015 in|
|60 Mesh||250 microns||0.25 mm||0.010 in|
|80 Mesh||200 microns||0.20 mm||0.008 in|
|100 Mesh||150 microns||0.15 mm||0.006 in|
|120 Mesh||125 microns||0.125 mm||0.005 in|
|150 Mesh||100 microns||0.10 mm||0.0039 in|
|200 Mesh||76 microns||0.076 mm||0.0030 in|
|300 Mesh||50 microns||0.05 mm||0.0020 in|