Please someone explain pump rates

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Please someone explain pump rates mark 02-13-2007
Posted by mark on February 13, 2007, 8:52 am
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what does 20 ul/MIN mean


what litre rate is this...as decimal ...no idea what the "U" means


and see this pump ...
does syncro motor mean i have to have some alternative means to
control the speed of this ..

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&ih=003&sspagename=STRK%3AMEWA%3AIT&viewitem=&item=130078764504&rd=1&rd=1


All the best.mark


Posted by Tim Leech on February 13, 2007, 9:04 am
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wrote:

>what does 20 ul/MIN mean
>
Presumably microlitre (millionths of a litre), the proper symbol is
the small Greek letter 'mu'

>
>what litre rate is this...as decimal ...no idea what the "U" means


1 ul is .000001 l, so 20 will be .00002 l
>
>and see this pump ...
>does syncro motor mean i have to have some alternative means to
>control the speed of this ..
>
>http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&ih=003&sspagename=STRK%3AMEWA%3AIT&viewitem=&item=130078764504&rd=1&rd=1
>
>
It'll only run at synchronous speed for the supply frequency.

HTH
Tim

Dutton Dry-Dock
Traditional & Modern canal craft repairs
Vintage diesel engine service

Posted by mark on February 13, 2007, 11:48 am
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> wrote:
>
> >what does 20 ul/MIN mean
>
> Presumably microlitre (millionths of a litre), the proper symbol is
> the small Greek letter 'mu'
>
>
>
> >what litre rate is this...as decimal ...no idea what the "U" means
>
> 1 ul is .000001 l, so 20 will be .00002 l
>
> >and see this pump ...
> >does syncro motor mean i have to have some alternative means to
> >control the speed of this ..
>
> >http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&ih=3D003&sspagename=3DST=
R=2E..
>
> It'll only run at synchronous speed for the supply frequency.
>
> HTH
> Tim
>
> Dutton Dry-Dock
> Traditional & Modern canal craft repairs
> Vintage diesel engine service

OK thankyou TIM

you sure it has that many zero's in it ..?


so 20 ul/MIN TO 220 ML/MIN

would translate to

0=2E012 litres an hour ...to 13.2 litres an hour


seems a hell of a range ..

that covers the range I'm after ...even theough My MIN range is
something like

100 ml an hour

and max is 3 litres an hour



and the collapsible silicon tubes in them.

will they handle old engine oil laced with a bit cellulose thinners.

All filtered of course.


and where can i buy the tube ...by the metre ...cheap

other than scrounging from hospitals and the kidney failure folk :)


Yup John ...not every body has =B5 on their key boards .....so
everywhere on the net its printed as just "U" ...that's if it does
mean that .


All the best.mark


Posted by Martin Whybrow on February 13, 2007, 2:10 pm
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> wrote:
>
>
> 1 ul is .000001 l, so 20 will be .00002 l
>
> >and see this pump ...
> >does syncro motor mean i have to have some alternative means to
> >control the speed of this ..
>
> >http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&ih=003&sspagename=STR...
>
> It'll only run at synchronous speed for the supply frequency.
>
> HTH
> Tim
>
> Dutton Dry-Dock
> Traditional & Modern canal craft repairs
> Vintage diesel engine service

OK thankyou TIM

you sure it has that many zero's in it ..?


so 20 ul/MIN TO 220 ML/MIN

would translate to

0.012 litres an hour ...to 13.2 litres an hour


seems a hell of a range ..

that covers the range I'm after ...even theough My MIN range is
something like

100 ml an hour

and max is 3 litres an hour

and the collapsible silicon tubes in them.

will they handle old engine oil laced with a bit cellulose thinners.

All filtered of course.

and where can i buy the tube ...by the metre ...cheap

other than scrounging from hospitals and the kidney failure folk :)



Mark, silicone tubing is pretty resistant to many solvents, should handle
old oil OK but not 100% sure about cellulose thinners.
The tubing is used for fuel lines on model IC engines so you should easily
be able to buy it in a decent model shop.
Martin
--
martin<dot here>whybrow<at here>ntlworld<dot here>com



Posted by Mark G on February 13, 2007, 3:50 pm
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The standard silicone tube, cant remember the trade name, used in
peristeltic dosing pumps will not stand neat petrol or mineral oils, I know
from experience, so engine oil might not be the best fluid. Generally they
are used for aqueous solutions and will withstand organic fats & oils, but
not mineral oils. Peristaltic pumps used to pump live fish at exhibitions by
the way !
Mark G.

> wrote:
>
> >what does 20 ul/MIN mean
>
> Presumably microlitre (millionths of a litre), the proper symbol is
> the small Greek letter 'mu'
>
>
>
> >what litre rate is this...as decimal ...no idea what the "U" means
>
> 1 ul is .000001 l, so 20 will be .00002 l
>
> >and see this pump ...
> >does syncro motor mean i have to have some alternative means to
> >control the speed of this ..
>
> >http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&ih=003&sspagename=STR...
>
> It'll only run at synchronous speed for the supply frequency.
>
> HTH
> Tim
>
> Dutton Dry-Dock
> Traditional & Modern canal craft repairs
> Vintage diesel engine service

OK thankyou TIM

you sure it has that many zero's in it ..?


so 20 ul/MIN TO 220 ML/MIN

would translate to

0.012 litres an hour ...to 13.2 litres an hour


seems a hell of a range ..

that covers the range I'm after ...even theough My MIN range is
something like

100 ml an hour

and max is 3 litres an hour



and the collapsible silicon tubes in them.

will they handle old engine oil laced with a bit cellulose thinners.

All filtered of course.


and where can i buy the tube ...by the metre ...cheap

other than scrounging from hospitals and the kidney failure folk :)


Yup John ...not every body has µ on their key boards .....so
everywhere on the net its printed as just "U" ...that's if it does
mean that .


All the best.mark



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