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  1. #1
    Moderator mike536's Avatar
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    Gates/Valves/and True Union

    Can someone tell me what a True Union Valve is?
    What are the pros and cons of gate and ball valves? (If any)
    Also where would you use these in an aquarium set-up?

    Thanks,
    Mike
    Cheers,
    Mike Philpott

  2. #2
    Senior Member CableGuy's Avatar
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    A gate valve is usually used when you have to fine tune your water flow. A ball vavle is used when your adjustment does not have to so presice, or for simple open and closed purposes. Gate valve = more money. A True union is like a coupling but you can take it apart, allowing you to remove a pump for example for cleaning without tearing your plumbing apart. I hope that made sense.

    Colby
    "DREAM LIKE YOU'LL LIVE FOREVER, LIVE LIKE YOU'LL DIE TOMMOROW"

  3. #3
    Senior Member tang_man_montreal's Avatar
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    A true union valve has easily removable ends on both sides of the valve as opposed to a single union valve that has easily removable end on one side only.

    While True union valves are nice, most people can get away with single union valves. The reason for the unions is so that you can service the valve, or a pump, etc... ie: close the valve, undo the union on the pump side, and remove the pump.

    A ball valve is typically used where you need to open or close water flow, where-as a gate valve is basically more precise at slowly closing (or opening) the flow; normally being used on a skimmer.

    Here's a picture of a standard ballvalve:


    Here's a picture of a single union ballvalve:


    Here's a true union ballvalve:


    And here's a standard gate valve for comparison
    I am Homer of BORG... Prepare to be..OOOO!! DONUT!!!!!!

  4. #4
    Senior Member
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    nice valves how much for the true union ball valve.

  5. #5
    Senior Member tang_man_montreal's Avatar
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    x-link,
    I think Ivan has them listed in his shopping cart.
    I am Homer of BORG... Prepare to be..OOOO!! DONUT!!!!!!

  6. #6
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    you know you can get them in montreal.

  7. #7
    Senior Member tang_man_montreal's Avatar
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    Yup, you can...
    There are many places to get them, AC being one of them.
    I am Homer of BORG... Prepare to be..OOOO!! DONUT!!!!!!

  8. #8
    Moderator mike536's Avatar
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    Hey Tang I got my switch today finally. Slow canada post. I haven't had a chance to hook it up yet because I'm in Cape Breton but i'll hook it up when I get home!!
    Thanks again,

    Mike Philpott
    Army 1 Textiles
    Oromocto, NB
    Cheers,
    Mike Philpott

  9. #9
    Senior Member tang_man_montreal's Avatar
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    Dang... that took long..
    It should've arrived late last week.

    I guess the mail's slow with the holiday's 'n all...
    I am Homer of BORG... Prepare to be..OOOO!! DONUT!!!!!!

  10. #10
    Moderator mike536's Avatar
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    ya but at least I got it in one piece!!!LOL

    Thanks again
    Cheers,
    Mike Philpott

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