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Lan123 (Civil/Environmental) (OP)
19 Mar 12 10:59
I need to select a very small dry pit pump that can be used to intermittently collect settled MLSS samples from a final clarifier of an activated sludge plant. The sampling line will be about 1.5 inches in diameter. What could be a good pump for this application?

Thanks in advance
micalbrch (Mechanical)
20 Mar 12 16:27
What does "very small" mean? Dimensions or flow? How long is the sample pipe?
Lan123 (Civil/Environmental) (OP)
20 Mar 12 21:28
I haven't sized the pump, but may be less than 0.5 Hp. Flow may be around 0.5 lph.  Length of the pipe could be around 100 ft.

 
Artisi (Mechanical)
21 Mar 12 3:35
How about YOU do some research or do you expect others to do it for you. There are hundreds of pump companies and pump agents out there in the big wide world - maybe you should try some of them.

It is a capital mistake to theorise before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts. (Sherlock Holmes - A Scandal in Bohemia.)  

stanier (Mechanical)
21 Mar 12 23:34
A progressive cavity metering pump would serve your needs. Try Seepex, Mono, Bornemann or others

"Sharing knowledge is the way to immortality"
His Holiness the Dalai Lama.

http://waterhammer.hopout.com.au/

micalbrch (Mechanical)
23 Mar 12 14:16
Or an AOD pump if there is such a small one available. It is small and cheap.

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