Small DC Pump

http://flow-control.globalspec.com/SpecSearch/Suppliers/Flow_Control_Flow_Transfer/Pumps/DC_Pumps?SrchItem=1

if it is difficult to find a single pump that will perform as required you may want to consider two or more in series. Peter Cross, Belmont, CA

Dear Sir

Kindly intimate theend use and the fluid being used with their parameters

to suggest.

Regards

Ashok

I would suggest that for this very low flow a peristaltic pump would be your best bet. A bonus is that maintenance is very simple compared to other PD pumps and the flow is not pulsed.

You can find many references on the Web, but try these guys - http://www.instechlabs.com/OEM/pumps/p625.php

Just joined this thing, so don't know what the norms (if any) are. One thread had a bunch of largely biased rants on global warming. Proposal--before giving a specific reference, take a few seconds to see if it is really useful? largest-rate pump instechlabs appears to have is 22 ml./ minute. This is WAY below what the original request was. On the other hand, putting "peristaltic pumps" in Google immediately reveals a wide range of resources. Now that is a pretty big head, also, and I saw no head ratings on a couple of scans through several lines of peristaltic pumps. Irrelevant, or just not typically significant for users of peristaltic pumps? Would relate to thickness of tubing used.

It would seem that from a "help peer or mentored person with relatively useful info" point of view, and roughly inferring (very unreliably, granted) the skill/experience level of the person posing the initial question, one might say "Peristaltic pump may be your answer, but depends on use, and head [assuming you have some hunch about this] may be a problem. Search 'peristaltic pump' on web." This gives two occurrences of the spelling, a redundancy which could catch an error from quick typing and help the person get a good search fastest.

"always the olde editor/student advocate" PRC, Belmont, CA

Try fish tank equipment and garden pond equipment suppliers. The duty specified needs only 9W.

Try Scott Pump in Cedarburg Wisconsin .

Askoh,

Use either english or metric units not both. 100 l/HR = 26.5 gallon per hour. Not very much. You should select your pump based on what is to be pumped, the nature of the demand or waste, and how often and how long the pump will be turned on. If you are new to pumps look at the Real Goods Solar Living Source Book descriptions for Direct Current pumps; realgoods.com--buy the Solar Living Source Book it will help you. Real Goods is limited in what they offer. You will find other DC pumps if you search the internet for marine bildge pumps. I am not sure about getting 100 ft of head from a bildge pump--you have to look at the pump curve for any pump you are reviewing. The pump curve will let you know if your demand (26.8 gal/hr or about 0.5 gallons per minute) can be obtained at 100 ft (43.5 psi) of head. If your use will allow a piston (positive displacement) pump action, go with that.

Have fun