Flashback Relief HHOG 2 EPD v2 Explosive Pressure Dissipator UPDATE SRV

[dangerousslave]

you should have used a flash arrestor

[TheDemoclesSword]

If I were you I would incorporate a pressure switch to sense the explosion, to cut off the power supply to the electrolyser. You did get a short circuit in the unit on one occasion which could destroy the unit and cause a fire. All you would need is a pressure switch and low voltage latching relay: To lock out the power supply.

[Itsmeeman1]

@InstallGuys Thnx for the reply. Actually, I was not talking about the pipe's expandability (if that's even a word! lol) but to a built-in filter type thing that can be plugged into a section of the pipe, much like in a water filter system for fish tanks, where a separate piece has it's own plastic filter gauss inside it. If that makes sense.

[Itsmeeman1]

Hi. Liked the vid. Was wondering,... do rubber gas pipes for gas bottles not have flashback arrestors? If so, then wouldn't they work just as well?

[InstallGuys]

@Itsmeeman1 I assume you are referring to the expansion ability of the rubber pipe? It's ability to withstand an explosion isn't enough. It will simply burst. Most gas bottles used for torches such as acetylene/oxygen use flash arrestors both at the torch head and at the bottle output. Good question...hope my answer helped.

[mavelazquez]

Thank very much for your answer. I though there was another reason to use just plastic materials.

Greetings from Buenos Aires

[mavelazquez]

HI, I want to know if there is any reason to use plastic instead of metal parts.

Thank you for sharing your information

[InstallGuys]

@mavelazquez Thanks for the question. I have looked into that pretty extensively over the last few years. The main reason has been COST. On average, my cost to produce a viable all metal design has run around $50 each. So far, no one wants to spend that much money on a safety valve for a hobby. Not only that, the EPD v2 design is a cheap, effective design that is easy to service with cheap replacement parts. Don't get me wrong, there are other metal designs out there, just not as effective.

[nano777guy]

Have seen a lot of home built HHO generators here for welding. Just wondering why no one separate hydrogen gas from the oxygen at the electro and re-mix them right before the flame.

[InstallGuys]

Because of the complexity of the build.

It is much simpler to build a common-ducted system. Not only that, you can produce more gas more efficiently with a common-ducted system. I say common-ducted refering to a Tero-style electrolyzer ("dry" cell). With a "wet" cell, this may be easier. We no longer use wet cells.

THanks for the comment!

STeve

[ardentscientist]

Impressive. While I was testing my torch. I decided to test the bronze wool flash-back arrestor before the tip. It did not work and ended up blowing off the hose from my third display bubbler in line. Thank goodness, I grease the hose barbs for easy dis-assembly. Hats off to you. I wish you all the best!

[AlmostHydrogen]

Very nice - keep up the good work.

AH

[lutherp40]

I second that! Very nicely done. :))

[vancecook7]

Nicely done. Thanks for watching our backs. :)