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Regulator choking me

Post questions and info about combustion (flammable vapor) powered cannons here. This includes discussion about fuels, ratios, ignition systems, safety, and anything else relevant.
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Regulator choking me

Unread postAuthor: polk county » Sun Aug 31, 2008 1:06 pm

I have this cheap husky air pressure regulator on my propane meter. The problem with this thing is that it is of the self relieving design. It accepts a charge of propane and then regulates it by slowly releasing some until the desired pressure is attained. Breathing mapp gas all day sucks. Does anyone know of a small sleek regulator that is non self relieving.

The Mr. heater ones look too bulky.

Thanks
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Unread postAuthor: starman » Sun Aug 31, 2008 2:31 pm

I use the Husky pressure regulator you talk about and don't have any significant trouble with leaky gas...the only time really is when dropping down some in pressure and that's only a brief moment. After that, it's good. Once the pressure settles in, it's pretty reliable.

If you are being "choked" by gas, there's a possibility you have a leak in your plumbing connections.

The Mr Heater model has been indicated though as a good upgrade.
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Unread postAuthor: polk county » Sun Aug 31, 2008 4:07 pm

http://images.google.com/imgres?imgurl= ... n%26sa%3DN[/img][/url]

The 4th one down is the one I want. Its a combonation valve and regulator. Its only 105 Us dollars
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Unread postAuthor: ralphd » Mon Sep 01, 2008 7:40 pm

I got mine from Graingers. It's made by Parker and costs about $20. For my next launcher I plan on eliminating the regulator and instead install a gauge on my meter pipe then just use the fill valve to regulate it myself. I am trying to eliminate weight, my current launcher has become quite a bit heavier with all the mods.
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Unread postAuthor: SpudMonster » Mon Sep 01, 2008 9:01 pm

Sounds to me like you might be feeding liquid propane through your regulator instead of vapor. I have a self-relieving regulator as well that doesn't give me any trouble except when if begins to feed a bit of liquid. Once the liquid propane gets past the reg, it vaporizes and increases the pressure after the regulator. This causes the reg to vent gas. Check your plumbing with soapy water to make sure there isn't a leak somewhere, and make sure your tank isn't positioned so that it will feed liquid. Do you have any photos of your setup?
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Stupid quote of the now:
joestue "The chamber is rated to 100 psi, it don't say that on the side, but the 2 inch stuff is rated to 300, so by analogy..."
"only the last two feet hear the end is black cellular core"
"I'm taking it to 300 psi"
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Unread postAuthor: man_o_brass » Mon Sep 08, 2008 10:24 am

If you have a large enough meter, you could try hunting around for a used cutting torch acetylene regulator. The only problem with them is that they're only designed to dispense up to 15 psi. If you want more than that, you have to take them apart and stretch the spring out a bit.
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Unread postAuthor: SpudMonster » Mon Sep 08, 2008 12:54 pm

man_o_brass wrote:If you have a large enough meter, you could try hunting around for a used cutting torch acetylene regulator. The only problem with them is that they're only designed to dispense up to 15 psi. If you want more than that, you have to take them apart and stretch the spring out a bit.


Holy crap! It's man_o_brass!
  • 0

Stupid quote of the now:
joestue "The chamber is rated to 100 psi, it don't say that on the side, but the 2 inch stuff is rated to 300, so by analogy..."
"only the last two feet hear the end is black cellular core"
"I'm taking it to 300 psi"
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Unread postAuthor: man_o_brass » Mon Sep 08, 2008 2:29 pm

Behold, I return! ...for now anyway. There's been some awesome stuff happening since I've been gone!
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