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Mine Exploration Forum

Author Submersible pump repair
bigdavevw

Joined: 28/10/2010
Location: S/W Scotland

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Submersible pump repair
Posted: 29/12/2011 14:33:50
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Hi guys, i recently got this Flygt GF 51 204 submersible pump from a mate.
I got it for free but the cables have been cut, no idea why. the plan is to use this to pump out mines Thumb Up

Does anyone know anything about this pump? What kind of oil should i be filling it with? Where can i get a power cable from? And why are there 2 cables?

Thats about all i can find on it, it is bloody heavy tho! And can pump 330l per minute!






dave
IP: 90.197.201.112 Edited: 29/12/2011 14:34:58 by bigdavevw
davel

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Joined: 24/07/2007
Location: Gwynedd

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Submersible pump repair
Posted: 29/12/2011 14:49:19
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bigdavevw wrote:

... And why are there 2 cables?

Just a guess - one might be for a float switch.

Dave
IP: 195.137.87.110
agricola

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Joined: 28/10/2007
Location: In a book

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Submersible pump repair
Posted: 29/12/2011 14:58:40
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We deal quite alot a work with various pumps, I'll see what I can find out when I go back to work next week. Thumb Up

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Morlock

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Submersible pump repair
Posted: 29/12/2011 15:26:47
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Looks like an obsolete model?

http://www.pumpsealonline.co.uk/index.php?main_page=product_info&products_id=531629882
IP: 82.31.26.168
bigdavevw

Joined: 28/10/2010
Location: S/W Scotland

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Submersible pump repair
Posted: 29/12/2011 16:10:30
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Hey guys, my mate just dropped off the manual. Have found out a few things about it.

Pump head is 12 meters, not too bad Wink
It uses a 2" BSP discharge fitting, so parts shouldn,t be too hard to find.


Hey Dave, yes i think you are right about the float switch, do i need this or can it be bypassed?

Does anyone know where i can get a cable?

Cheers Agricola any info would be appreciated!

Dave

IP: 90.197.201.112
Knocker

Joined: 17/06/2008

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Submersible pump repair
Posted: 29/12/2011 17:20:49
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Depends what you want it to do, if you want to pump somewhere dry and keep it dry to the bottom yes you will need a float switch. If whatever you're pumping has a huge sump (I.e. lots flooded beneath it) and you only want to keep the water down for a short while you could live without it, it should just be a case of shorting the two switch terminals. IP: 90.219.230.94
Lister

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Joined: 07/10/2007
Location: Helsby, Cheshire

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Submersible pump repair
Posted: 29/12/2011 17:55:11
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I'd use a tough rubber cable for this such as H05RR-F http://www.screwfix.com/p/tower-3-core-reel-flexible-cable-black-1-5mm-x-25m/55534 The pump is only rated at 4A but this higher rated & larger diameter cable would be more robust.
According to the rating plate the motor uses a capacitor probable for phase shift purposes, have you checked this is internal in the casing?

....Lister;~)

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'Adventure is just bad planning' Roald Amundsen
IP: 92.28.71.109
bigdavevw

Joined: 28/10/2010
Location: S/W Scotland

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Submersible pump repair
Posted: 29/12/2011 19:03:55
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Cheers for the replies, yea that cable looks right!
It will be used to pump out mines, just enough to have an explore so we wont need a float switch.

"According to the rating plate the motor uses a capacitor probable for phase shift purposes, have you checked this is internal in the casing?"

I dont really know, i couldn,t see any capacitors inside the case, the pic on the owners manual has a black cylindrical thing with two cables coming out so that must be it. Will it run with out it?
IP: 90.197.201.112
Lister

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Submersible pump repair
Posted: 29/12/2011 19:39:59
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Suitable capacitors; http://www.ebay.co.uk/sch/i.html?_from=R40&_trksid=p5197.m570.l1313&_nkw=25uF+450V+capacitor&_sacat=See-All-Categories
The motor wont turn without one.

...Lister;~)

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'Adventure is just bad planning' Roald Amundsen
IP: 92.28.71.109
scooptram

Joined: 22/05/2007

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Submersible pump repair
Posted: 29/12/2011 21:01:20
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shouldnt need oil the impeller bearing etc uses the water for lube (well the newer ones do)

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mind that rock OUCH
IP: 194.177.255.82
davel

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Joined: 24/07/2007
Location: Gwynedd

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Submersible pump repair
Posted: 29/12/2011 22:27:21
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It's just occurred to me that one reason the cables may have been cut is to prevent use of a faulty item.

I suggest it might be a sensible precaution to get the insulation resistance of the pump tested just to make sure it's safe to handle when it's live (and wet).

Dave
IP: 195.137.87.110
Ty Gwyn

Joined: 30/10/2009
Location: Lampeter

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Submersible pump repair
Posted: 29/12/2011 23:05:47
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Or its been,well you know what i mean,no one is going to roll up the cable. IP: 86.154.227.74
Morlock

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Submersible pump repair
Posted: 30/12/2011 05:49:08
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A bit long winded but it appears "G" is groundwater and "F" is sewage. Have a wade through it, may be useful.


http://www.flygt.de/1988500.pdf
IP: 82.31.21.228
Aditaddict

Joined: 27/08/2010

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Submersible pump repair
Posted: 30/12/2011 09:32:14
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By the time you have bought a new ball switch and cable etc it would be cheaper to buy a new pump £40 LoL

http://www.ebay.co.uk/itm/NEW-Silverline-500w-Submersible-Dirty-Water-Flood-Pump-/380365590781?pt=UK_HomeGarden_Garden_PondsWaterFeatures_UK&hash=item588f8e50fd

This one is a Flygt guy says it's brand new and it's on at £2.20p

http://www.ebay.co.uk/itm/flygt-stam-20-Submersible-pump-water-pump-/130621259704?pt=LH_DefaultDomain_3&hash=item1e69a23fb8
IP: 81.109.226.72 Edited: 30/12/2011 09:49:52 by Aditaddict
Knocker

Joined: 17/06/2008

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Submersible pump repair
Posted: 30/12/2011 11:08:51
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I doubt you'd get much change from a £1000 for that one, t looks like a sludge pump (It will handle some pretty big solids). But yes I would get it checked by an electrician - you don't want to plug it in and find the whole body is live! And worst still the water you're standing in! IP: 90.219.230.72
bigdavevw

Joined: 28/10/2010
Location: S/W Scotland

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Submersible pump repair
Posted: 30/12/2011 11:23:46
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Hey guys, I,ve beeb looking at the cost of getting it repaired vs buying a new one. and it would work out cheaper just to buy a new one. I think you maybe right about the cables being cut to stop it being used due to being faulty.
Not going to throw this away tho, may be able to fix it in the future

Dave Cool
IP: 212.183.128.2
amywoods

Joined: 31/01/2018

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Submersible pump repair
Posted: 31/01/2018 14:51:43
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This may be a good cable alternative too

https://www.wickes.co.uk/Time-3-Core-Flexible-Round-Cable---Black-0-75mm2-x-5m/p/138907

Moderation: As Tool Station see fit to employ people to post spammy links to their web site I've changed the link to somebody else Laugh Moderation: IP: 217.9.203.181 Edited: 06/02/2018 16:49:14 by (moderator)
crickleymal

Joined: 12/03/2009
Location: Gloucester

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Submersible pump repair
Posted: 31/01/2018 16:05:34
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Holy thread resurrection Batman! ;-)

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Malc. Rusted and ropey, Dog eared old copy Vintage and classic or just plain Jurassic All words to describe me.
IP: 194.176.105.144
Lister

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Submersible pump repair
Posted: 31/01/2018 20:08:46
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LaughLaughLaughShocked
I was thinking oh this is an interesting thread until I read my replies from 2011 Shocked

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'Adventure is just bad planning' Roald Amundsen
IP: 94.0.222.96
sinker

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Submersible pump repair
Posted: 31/01/2018 20:35:20
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Lister wrote:

LaughLaughLaughShocked
I was thinking oh this is an interesting thread until I read my replies from 2011 Shocked


That's good coming from you Andy LOLOLOLOLOL Laugh Laugh Laugh Laugh

Where have you been for that last few decades??! Thought you were lost in space or something??!!? The Christmas party has been and gone mate Tongue Tongue Tongue

Only joking....you out tomorrow night then? Wink



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Ah, well, now, you see.... IP: 109.156.136.230
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