Author Topic: Yet another pumps thread (Read 198176 times)

knighty · « **Reply #660 on:** March 27, 2017, 07:20:22 PM »

£90 not a bit dear ?

Tony · « **Reply #661 on:** March 28, 2017, 12:10:04 PM »

Well, they're £350 new, and multistage with stainless impellers, so it's not unreasonable. They push a lot of pressure so great for venturis and educators - the only catch is that they are closed impeller so the oil being processed has to be filtered. I think they're great, seem quite happy pumping oil at over 100C.

dgs · « **Reply #662 on:** March 28, 2017, 01:42:32 PM »

I appreciate that it's only 1/3 of the consumpion of a frankenpump (TAM 120) but it doesn't really compare. Over 1 1/2 hours processing the extra cost would be about 18pence.

The head on the 120 is 65 metres and with an unmodified 1/2" eductor mine pumps at 71psi. someone on VOD calculated the nozzle velocity at 28 metres/sec. It was a bit risky at that pressure so from Jims' advice I drilled it to 8.5mms, now it pumps at 31psi with oil and 28psi with bio.

There is a slight efficiency gain as the fluid kinetics heat the oil without the immersion.

Tony · « **Reply #663 on:** March 28, 2017, 10:47:44 PM »

Ah yes, granted on the leccy cost. At the time I first got one of those pumps I was running on a 13A extension lead so immersion+pump amperage was a consideration. Then we fitted underground SWA cabling and a 32A commando, which made a big difference.

Then I moved house - back to the 13A extension lead again until we sort the electrics out!

Julian · « **Reply #664 on:** March 28, 2017, 10:50:02 PM »

Can you wrap the lead round the processor for added heating?

Tony · « **Reply #665 on:** March 28, 2017, 11:53:56 PM »

It's chilly in the garage so I wrapped it around my legs. Health and safety first, can't be having cold calf muscles!

julianf · « **Reply #666 on:** April 21, 2017, 07:57:41 PM »

I could look back over the thread, but is this one of the ones Tony gets excited about -

http://www.ebay.co.uk/itm/122455381120

?

(im not bidding by the way)

Tony · « **Reply #667 on:** April 21, 2017, 10:17:02 PM »

Yep they're the ones, it was previously listed at a higher price so it is tempting... but I've already got a good collection so won't be adding to it!

neisel · « **Reply #668 on:** June 08, 2017, 11:34:14 AM »

Does this have any BD or WVO application?

neisel · « **Reply #669 on:** June 10, 2017, 06:35:49 PM »

Bump!

Tony · « **Reply #670 on:** June 10, 2017, 06:47:07 PM »

Are the end fittings plastic or painted black steel?

Anything plastic isn't likely to last, of course - not sure how useful having two pump heads is either (trying to think of an application for that!)

neisel · « **Reply #671 on:** June 12, 2017, 11:20:08 AM »

The black ends are plastic.

I don't know what to do with it either. I saw it at a carboot sale for a fiver.

Tony · « **Reply #672 on:** June 12, 2017, 11:49:14 AM »

Do you need a power shower in your house?

neisel · « **Reply #673 on:** June 12, 2017, 08:32:30 PM »

julianf · « **Reply #674 on:** June 22, 2017, 02:51:45 PM »

It looks like ive spotted one before the usual suspects -

http://www.ebay.co.uk/itm/332275611367

£55 of possibly usable spare parts there.

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Yet another pumps thread