Bucket type strainer is larger than Y-strainer
Y-strainer has the shape of letter Y. Its tail end allows easy access to remove the solids and to clean the strainer. The strainer can be mounted horizontally, or vertically.
Bucket type strainer has vertical cylinder, or chamber, larger than in Y-strainer. The straining area is larger allowing for longer time between cleaning. The flow is less hampered by debris so the pressure drop across it is less than in Y-strainer. Bucket strainer is preferred in larger diameter pipes, in services where longer maintenance interval is desired, or where pressure drop has to be minimized for NPSH reason. Bucket type strainer, also known as basket strainer, is mounted horizontally. Either type of strainer can be used in petroleum, chemical, petrochemical, and in most industrial service.
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