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Piston pump for screen cooling


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  #1  
Old 12-03-2018, 03:52:44 AM
Engineman87 Engineman87 is offline
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Default Piston pump for screen cooling

Hi all,
Wishing to set up a screen cooler on one of my
Engines and was wondering if a Ajax style piston pump would be fit for use. Given it’s sucking from the cold side I figure the temp wouldn’t get above 80 degrees at a guesstimate. The engine is a lister cs driving an ac alternator.
Any input would be helpful.
Regards.
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Old 12-03-2018, 04:11:29 AM
Scotty 2 Scotty 2 is online now
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Default Re: Piston pump for screen cooling

Hello Engineman
Are you talking about something like an Ajax A2? If so then maybe a bit overkill?
Cheers Scott
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Old 12-04-2018, 12:32:30 AM
Engineman87 Engineman87 is offline
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Default Re: Piston pump for screen cooling

Yes Scotty2 I am referring to an inch and a half model.
It may be overkill but would the temperature of the water be an issue? I have tried to source brass gear pumps however have not been successful as yet therefore I looked for an alternative.
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Old 12-04-2018, 02:43:37 AM
Scotty 2 Scotty 2 is online now
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Default Re: Piston pump for screen cooling

Hello Engineman
There's usually one or so on ebay I think.
https://www.ebay.com.au/itm/VINTAGE-...wAAOSw22FcBLav

This one is too dear I reckon.
https://www.ebay.com.au/itm/Old-Vint...4AAOSwMjtbzHTj

Even a little 1/2 or 3/4" centrifugal pump would be better. You can have a tap on it to restrict water flow if needed.

Cheers Scott
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Old 12-04-2018, 03:26:37 AM
Engineman87 Engineman87 is offline
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Default Re: Piston pump for screen cooling

Thanks Scotty, my thoughts exactly on the top expensive part re the second pump, last one I bid on went way past that amount. I have centrifugal pumps but none under 1.25 inch. I will investigate the first pump and if not successful will keep looking for a gear pump that is priced within reason.
Cheers =]
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Old 12-08-2018, 07:30:33 AM
Phil Dowe Phil Dowe is offline
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Default Re: Piston pump for screen cooling

I have been using CS Listers for work,and they have to work long hours. I just use a poly 44 gal tank, thermo syphon, BUT I put a small thermostat, where the outlet is from the head, and also a small bypass, that has a tiny gate valve to govern the rate, from a tee piece on the outlet side of the pump,into the bottom of the poly tank. There is also an outlet from the top of the poly tank,to take the excess away. I just let it run back into where the water is being pumped from. The amount of flow is really just an old mans piddle!! The engine stays at a good working temp, and the tank never gets hot! Regards Phil.
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