Need a pump that satisfies these conditions
Need a pump that satisfies these conditions
(OP)
Hi
I need a pump that satisfies these criteria. I need to pump water at volume flow rate of 0.6 l/min. Pressure in the system to overcome in just over a 1m.
I have a pump but it has a max flow of 16 l/min and although it is linked to a valve, I feel that would I have to restrict the flow too much and risk causing a temperature increase in the fluid which is not possible.
Thanks
I need a pump that satisfies these criteria. I need to pump water at volume flow rate of 0.6 l/min. Pressure in the system to overcome in just over a 1m.
I have a pump but it has a max flow of 16 l/min and although it is linked to a valve, I feel that would I have to restrict the flow too much and risk causing a temperature increase in the fluid which is not possible.
Thanks





RE: Need a pump that satisfies these conditions
Regards,
SNORGY.
RE: Need a pump that satisfies these conditions
RE: Need a pump that satisfies these conditions
RE: Need a pump that satisfies these conditions
Grundfos Hot Water Cast Iron Circulator 10 GPM 3-Speed # UPS15-58F
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RE: Need a pump that satisfies these conditions
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Trouble is, it says that there is no max head associated with gear pumps and this is where my knowledge of pump sizing falls down.
How can I see if this is pump is suitable?
RE: Need a pump that satisfies these conditions
contact the dealer
Grundfos UK - SalesTelephone: 01525 850000
Website: http://www.grundfos.co.uk
RE: Need a pump that satisfies these conditions
The particular link you posted states quite clearly:
"Max pressure 21 psi"
Probably limited by stall torque of motor.
RE: Need a pump that satisfies these conditions
I was only asking what the difference is between the max head quoted on centrifugal pumps and the max pressure quoted here, as it indicates clearly further on down the page that gear pump specifications do not provide a max head.
RE: Need a pump that satisfies these conditions
RE: Need a pump that satisfies these conditions
Also, you may be able to locate the OEM for that pump, with a bit of searching, and easily shave 50% or more off the CP price, especially if you have volume numbers to talk about. I've had pump manufacturers give me loaner samples to prototype with, based on a possible future volume in the 100's of units per year.
RE: Need a pump that satisfies these conditions
So if I understand correctly, the two are still linked, just one is controlled by pump design the other isn't. If I know that the pressure losses in my system are greater than the 21 psi quoted, then I know the pump is no go.
Yea Cole Parmer have not been my friends the last few years, looking like the Grundfos pump 'cfg' posted is a winnera at the moment.
RE: Need a pump that satisfies these conditions
Um, yes. But there are many other manufacturers and each has many other pump designs. Keep looking.
RE: Need a pump that satisfies these conditions
RE: Need a pump that satisfies these conditions
See if any of these work for you:
http://ww
AC
RE: Need a pump that satisfies these conditions
"Sharing knowledge is the way to immortality"
His Holiness the Dalai Lama.
http://waterhammer.hopout.com.au/
RE: Need a pump that satisfies these conditions
I have 2 in my lab. But it's somewhat unpredictable, because you're relating PSI on the air regulator to flow rate. (Hint, install a good flowmeter... from McMaster), and you'll like the setup a lot. It's a bit noisy. the air outlet is 1/8" NPT. I bought an air sparger/muffler from McMaster for $5 in stainless steel, and it does a good job of reducing the noise.
I also have a masterflex peristaltic pump I bought on eBay for $150. That is also a really nice, accurate pump.