Discharge Venturi ?

Discussion in 'Pumps and Waterflow' started by Warr7207, 16 Jan 2009.

  1. Warr7207

    Warr7207

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    I bought a new pump and it says it has a discharge venturi.

    Please explain what this is and it's purpose ?
     
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  3. Reef Maniac

    Reef Maniac MASA Contributor

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    It should be a fitting (perhaps) with a slight restriction in it's diameter, and a small hole (& airline connector) close to the restriction. This creates suction at the small hole when the pump is operating, sucking in air if the hole's nipple is exposed to air (or has an airline going up to the water's surface)

    All Venture-type skimmers use this principle to suck air into the skimmer pump, thus creating the bubbles which makes the skimmers work.

    Here are some links:

    http://en.wikipedia.org/wiki/Venturi_effect

    http://www.ce.utexas.edu/prof/KINNAS/319LAB/Applets/Venturi/venturi.html

    Hennie
     
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  4. Warr7207

    Warr7207 Thread Starter

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    If I don't use venturi, can this small outlet be used to drive a reactor ?
     
  5. Reef Maniac

    Reef Maniac MASA Contributor

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    It will also pull water, although not very strongly, so yes, you would be able to use it to suck water through a reactor if everything is close to water level. I use this to circulate water through my calcium reactor.

    Hennie
     
  6. dallasg

    dallasg Moderator MASA Contributor

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    great idea, got DIY potential
     
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