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Conical Strainer Pressure Drop

Conical Strainer Pressure Drop

Conical Strainer Pressure Drop

(OP)
Hi,
I'm am looking for typical pressure drops across DN 750 (30") and DN 600(24") conical strainers on a cooling water application. Flow rate is approx 2400m3/h (~10,000gpm). The strainers are fabricated from 3mm (1/8") perforated plate and the open area is 150% of line cross sectional area. Local supplier cannot help with data.

I have looked on web and found infomation from Leslie Strainers and ISLIP flow controls on temporary srainers. However their charts are based on 40% open area and I don't think you can extrapolate to 150%. Can anyone assist?

RE: Conical Strainer Pressure Drop

I dont think that at 150% of open area there is going to be a significant pressure drop. When the strainer becomes clogged there will be a presure drop worth considering.

Idelchik Ch8 Flow Resistance A Design Guide for ENgineers covers such devices with uniform openings that cross the flow path. I am a busy at the moment so cant do the calculations for you. i am sure you can find the reference in a technical library.

Go to www.pipingdesign.com and see my papers on surge analysis.

RE: Conical Strainer Pressure Drop

(OP)
Thanks Stanier,

I am chasing up a copy of Handbook of Hydraulic Resistance by Idelchik but won't be able to get a copy for a little while. If you happen to complete calculations, I would be interested in results.

RE: Conical Strainer Pressure Drop

Hi Perth1

I do apologise but I am busy right up to Christmas and then am away. I come back to a commissioning of some aviation fuel lines thta cant be put off.

If you look at the papers I have referred to you will find my email address (I cant publish it here). Send me an email and I might just be able to scan the pages and send them to you.

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