HHOG 2 EPD v2 Explosive Pressure Dissipator Safety HHO

[maltantawi93]

what is this epic music in the background! awesomeness :|

[irondmax]

good work guys....................keep it up

[arthus1971]

Bravoooo!

[Doversreturn]

i love the dramatic music as if presenting some cutting edge technology hahahaha.

[InstallGuys]

HAHA. I know. We had to spiff it up, somehow!!! :-)

Steve

[moreoverunity]

I would like to see this working on a typical blow molded bubbler about half full of HHO. My tests have blown the lid off, using a smaller pressure valve. One time it blew out the bottom barbed fitting out of the bubbler. Another time it split the bubbler. One time it BLEW the valve out of the bubbler itself.

Im not sure these can be used on blow molded bubblers, I would like to see how your's performs on a typical bubbler. The one I have used works great on PVC bubblers.

[InstallGuys]

Another thought.

DISCLAIMER: We do not recommend using check valves as flashback arrestors!

HOWEVER...we have had pretty good success with stopping flashbacks with check valves. It works about 80-90% of the time. Also, the orientation of "floating diaphragm" check valves matter. Point it UP! So, I recommend putting a check valve on top of your bubbler for the gas output, not simply a barb. This may greatly reduce the chance of a flashback getting to the bubbler. They make threaded versions.

[InstallGuys]

Apparently my first post didn't get to you.

We have never tested this with a blow molded bubbler. Only PVC. If you were to attempt a pressure relief valve similar to this, it would have to open at a VERY low pressure. I don't recommend it. This would be a problem on systems that generate more than 2Lpm, though. Could have leaks. We have a new EPD-Enhanced bubbler on hhoglabs . com (remove spaces) website. You are welcome to look, and see if it gives you any ideas for your own purposes. Steve

[arthus1971]

@InstallGuys Hi Steve, I want your advice, Dry Cell or Wet Cell? Thank you for share your knowledge.

[InstallGuys]

@arthus1971 Deffinitely Dry Cells...all the way.

[moreoverunity]

Yes you are right PVC, ABS. thicker types is about the only bubblers I think this will work on, not blow molded type, just not enough strength in the caps/bubbler housing.

Also, to be clear, I never tried your exact design, I made myself a small 1/2" one with a weak spring, based on a similar in design to yours but not exactly. And the other type was one from Grainger, which blew the lids off.

I was hoping your design might work better than the ones I tried, ie release at lower PSI etc

[moreoverunity]

great work guys, this is something that is really needed... although I have been a fan o plastic membrane deal, this is WAY better and doesnt need replaced.  Also more professional look for those of us marketing our products.

Nice good luck with it..

[thenickman26]

hi there looks pretty good, reminds me of a device used on large marine diesel engines called crankcase explosion covers/ doors.

a device used to prevent damage to equipment, not to prevent ignition. i will use something very similar to this on my bubbler too. however will also use a tested flash suppressor as close to the engine intake and bubbler output as possible.

as i see this cool device of yours as a really good way to manage the worst case, but not to prevent it.

keep it up man.

[InstallGuys]

Thank you for commenting!

You are right. Our goal in this device isn't to prevent ignition, it was to manage it, and control the blast. HHO ignition is so much more violent than other combined gases, it can turn any bubbler or hho generator into shrapnel before you can say "oops".

So far, we have had VERY promising results. No failures, yet(thank goodness, cuz I hate loosing test containers).

Steve w/InstallGuys

[vancecook7]

Nice ... will you be testing different volumes of gas exploding or are you limiting it to fairly small volumes since most of us already try to limit our HHO storage capacity already? It might be nice to know how large a volume of exploding HHO it is rated for. :)

[InstallGuys]

Yes, we will be testing it with 250mL to 750mL of gas compressed to a few psi. We feel if we put this out there, it should be SAFE, and rated past 5 LPM. Also, it will open at a far lower pressure than the container it is attached to (1/4 pressure). Our test container is rated 150psi like most SCH40 PVC. HHO blows to over 2900psi in just milliseconds, so there's a delicate balance there. We will post all this data when we post our explosive tests.

Thanks for the comment!

Steve w/InstallGuys

[AlmostHydrogen]

Hey Steve,

Looks like another great safety device. Imagine if we combined my cool new Duel Bubbler & your EPD... that would be awesome.

Keep up the good work.

Steve aka AH

[InstallGuys]

HAHA, You Betcha! I'm tossing around your dual bubbler in my mind, still. Can't wait to see how well it works. I've envisioned a dual chamber one, myself, but never thought about an inline one. Ingenious. You've got to tell me the secret on how you fill up the lower portion! ;-) Leave the bottom cap unglued? Side mount refill port?

Good Stuff!

Steve w/InstallGuys