prices on 12V Pump

Discussion in 'Pumps and Waterflow' started by ziyaadb, 5 May 2009.

  1. ziyaadb

    ziyaadb

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    HI all

    Came across a place that can supply me with a 3000Lph-3m max head- 12V pump for around R570.00 is that a good price?
     
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  3. Warr7207

    Warr7207

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    IMO - good price
     
  4. Tobes

    Tobes Retired Moderator

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    That is too much - I bought a 12v Rule bilge pump 3030lph for R360 here in PMB at a boat shop. They are some of the best ones.
    Posted via Mobile Device
     
  5. lIghty

    lIghty

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    Does it have a ceramic shaft?
     
  6. Andreas

    Andreas

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    Yip those Rule pumps are great. It think it has marine grade Aluminium shaft
     
  7. lIghty

    lIghty

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    maybe someone could check the shaft atfer a couple weeks and report back.
     
  8. Andreas

    Andreas

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    maybe not:razz:Tobes wont mind opening his pump for us:whistling:
     
  9. Phyrannus

    Phyrannus

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    Correct me

    Please correct me if i was wrong..is it 12Volts or 12Watts?;)
     
  10. lIghty

    lIghty

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    They are 12 Volt, not sure on the wattage, think they about 50 odd watts?
     
  11. ziyaadb

    ziyaadb Thread Starter

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    12 volts and 4.5 amps does not say the watts
     
  12. Warr7207

    Warr7207

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    54 watts
     
  13. Tobes

    Tobes Retired Moderator

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    Mine is 12v and only 2.8 amps :)
     
  14. ziyaadb

    ziyaadb Thread Starter

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    cool stuff man will give u a shout
     
  15. Warr7207

    Warr7207

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    How do you hook up one of these pumps permanently to a system ?

    Can it run on 240VAC, through an invertor and then auto switch over to battery power when no electricity ?
     
  16. Reef Maniac

    Reef Maniac MASA Contributor

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    Nope - it will run on 12 volt. You could hook it up to a 12V battery, and have a battery charger deliver a "trickle charge" of the same amperage that the pump is drawing - then the battery will just pass this current to the pump, but will "kick in" automatically when the power goes out and the charger stops.

    Hennie
     
  17. Warr7207

    Warr7207

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    Thanks for the info.
     
  18. Tobes

    Tobes Retired Moderator

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    Warr, I installed the 12V pump next to my 220V pump with its own return line, in other words I have two return pumps with 2 return pipes.

    The 12V pump is permanently connected to the deep cycle battery with the positive wire of the pump cut and a 220V relay installed which is kept "open" by the 220V (like a electric switch)

    I also have a electronic "intellegent" charger permanently on the battery which only "maintaines" the battery. It only charges when there is a voltage drop and the booklet says you can leave it connected for months on end.

    Now when the power trips, the relay closes as there is no more 220V to keep it open. This closes the 12V circuit and the 12V pump kicks in. When the power comes on again, the relay opens, the 12V pumps stops and the 220V pumps comes on again. The charger also fills up what was used.

    Seeing that the battery is 104amp/h and the pump only 2.8 amps, it should give me more than 30 hours :)

    I'm not too woried about temp as our power was off for 22hours once and the temp only dropped 3 degrees - it was about a month ago when a substation blew up :p

    I explained in more detail for newbies to follow as well - hope it helps :wave2:
     
  19. Warr7207

    Warr7207

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    Great info
     
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