(no subject)

From: <Steve>
Date: Mon Apr 29 2002 - 06:34:00 EDT

Hi Jarot
every pump will have a maximum particle size that it can handle. The pump manufacturer is required to tell you this. I normally select strainer aperture size two thirds of this for a bit of safety. Some use one third. I may go larger if there are a lot of large particles expected, and larger again if the particles are weak and brittle. The purpose of the strainer is to stop the pump being jammed up with particles. There is no rocket science involved. If there is downstream equipment which requires a smaller size (e.g. spray nozzles, plate heat exchangers), I will put another strainer, or a filter immediately before this equipment. If you try to do it all with a suction strainer, you run the risk of unnecessary pump cavitation, and loss of flow in parallel circuits that do not have this particle size limitation. Keep the suction strainer mesh size as large as possible. It should be there only to protect the pump.
If a pump strainer is continually being blocked, then the strainer aperture is too small, possibly as a result of the wrong pump being selected.

Cheers

Steve McKenzie

-----Original Message-----

From: Jarot MURSITO [mailto:j.mursito@ptsofresid.com] Sent: Monday, April 29, 2002 6:57 PM
To: <a href="/group/PipingDesign/post?postID=mdZcnxZDs9hWSulc8de_05GXWTGkJoBKE2UN-nYg8Jc1T21JV3dvB8c2xMlXBuVTjRZ1BaIs7hi-mU-C1HNLFaVU7mk">PipingDesign@yahoogroups.com</a> Subject: [PipingDesign]

Can someone tell me about the size of strainer screen mesh in Oily water line from overflow separation tank to centrifugal pump? Is there any website describe clearly about screen mesh size requirement before go in to PUMP ?

Thank for your assistance.

Regards,

Jarot Mursito.

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