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  1. #1
    Old Timer Soundguy's Avatar
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    Default Bung adapters?

    I'm goint to mess around using a 55 gallon drum on a project I'm working on. Anyone off hand know the bung sizes? is it 2" and 3/4"

    Also.. are they pipe.. bolt? tapered? etc. Do they need an oring/boss type fitting to seal.. or if npt/tapered.. should seal up?

    Thanks

    Soundguy

  2. #2
    Super Star Member Egon's Avatar
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    Default Re: Bung adapters?

    Can't remember the size of the bungs but they used to have pipe threads. May need some sealant or teflon tape.

    Please note; all my information is well dated!!

    Egon

  3. #3
    Veteran Member
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    New Hebron, MS
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    MF 1455v 4wd, 1040FEL

    Default Re: Bung adapters?

    I believe I've seen some with a 2" and a 3/4" bung, and some with two 2".
    The coarser (than pipe) thread is called "butress" I believe.
    See this thread.

  4. #4
    Bronze Member graybeard451's Avatar
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    BX 23

    Default Re: Bung adapters?

    </font><font color="blue" class="small">( I'm goint to mess around using a 55 gallon drum on a project I'm working on. Anyone off hand know the bung sizes? is it 2" and 3/4"

    Also.. are they pipe.. bolt? tapered? etc. Do they need an oring/boss type fitting to seal.. or if npt/tapered.. should seal up?

    Thanks

    Soundguy )</font>

    <font color="blue"> </font>

    Yes, They are NPT, 3/4 and 2 inch. Yes, you should use a pipe dope rated for whatever you plan on storing in the drum. But not teflon if you are going to use for fuel because the teflon threads in the tape or teflon dope can get into the fuel pump and do damage.
    RP

  5. #5

    Join Date
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    NH TC-33D

    Default Re: Bung adapters?

    The other posters are correct about the sizes and the threading UNLESS they are plastic drums them the larger bung is still 2" but can have special threads. There is usually a 3/4" bung in the middle of the larger one and it NPT.

  6. #6
    Old Timer Soundguy's Avatar
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    Default Re: Bung adapters?

    Thanks guys.

    Yes.. metal cans.. I've got access to some emtal cans that had honey, molassis, and picante sauce ( food grade cans? ).. I'm rigging up a watering tank for a small trailer to tow behind my tractor. I'll make the 2" bung my 'fill / vent' adapter and then plumb the 3/4" bung out to a short section of gravity fed spray bar... maybee 1/2" pvc.. a couple/three feet long. with lotsa tiny holes drilled in it.

    If I ever get this idea past 'idea' stage and into 'reality' I'll post pics.

    Anyone ever try pressurizing those tanks to say 15-20 psi to help with water flow? I have a spare air tank, and campbell hausfield inline cheapyair regulator I could tap in and use a small tire pressure pump to keep a few pounds of air pressure ont he tank to help it 'evacuate'. The tractor can provide the 12v for the pump.. etc. Valving will be simple ball valve.. thought I do have a few spare sprinkler dump valves laying around if I wanted to make it 'electronic'...

    Comments?

    Soundguy

  7. #7
    Super Star Member Egon's Avatar
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    Default Re: Bung adapters?

    Perhaps think long and hard about pressuring up barrels. They have been know to blow up!

    Egon

  8. #8
    Super Star Member
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    Kubota B2910, Simplicity 18 CFC, Cub Cadet 782

    Default Re: Bung adapters?

    Like Egon sez .... I'd avoid pressurizing the barrels ...... I had a 55 I was using for diesel that I would pressurize to less than 10 psi to help pump out the fuel. I recently replaced it with a larger storage tote and I got to looking at the 55 after I took it out of service - the drum top is mushroomed up pretty good .... scary.

    I had a male quick-couple air fitting in the smaller bung that I would just plug my air line into (after turning down the regulator to less than 10 psi) I would always pull the air line after the pump got prime and pump it from there ..... so the pressure probably never ever got to 5 or 10 psi even. I also would cap the male quick coupler with a plastic vacuum cap - the amount of pressure that would build in the drum from just sitting without blowing off the vacuum cap was amazing.

    On the water tanks aspect, I just buiilt a watering rig using two 55's laid on their sides and strapped to small pallet I can pick up with the FEL and pallet forks. It is for spot watering and uses a hose, not a spray bar. To speed up the flow I plumbed the two drums together using plastic fittings and 1 1/4 straight radiator hose from the local NAPA. From the tee I ran a twenty-five foot 1 1/4 flexible plastic sump pump line (cheap - less than $7) and installed a plastic shutoff valve in the end.

  9. #9
    Old Timer Soundguy's Avatar
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    Default Re: Bung adapters?

    Wow.. I figured those drums would take at least a few psi.. Maybee I'll expirement with say.. 3-4 psi.. just enough to speed up air replenishment in the vent side. The little cheapy ch air regulator is just an orifice valve.. it will regulat from 0 and up. At low pressure like that.. i can't imagine any catastrophic failures.. but I'll look it over good before I test it out anyway.

    Thanks for the comments guys.

    Soundguy

  10. #10
    Super Star Member Egon's Avatar
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    Default Re: Bung adapters?

    If you do use pressur make sure and have a large PSV. The barrels usually blow up when outlet gets blocked or restricted in some fashion.

    Any major employer will have presurizing barrels as a no no.

    Egon

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