I feel like an idiot

[Palmetto Dive]

Scubaboard,

I feel like an idiot. I finally purchased my first regulators. I admit I fell in love with the sleek aesthetic of the DIN valve first stage. I’ve used them before, no problem. But tonight, I went to set up my DGX Custom Dive Rite XT1/XT2 DIN package and when I screwed the first stage into the tank valve, air kept escaping violently from the time escape hole behind the threads on the tank valve.

The o-ring looks good to me. Brand new, and all. I re-threaded it several times to make sure I wasn’t screwing up the threading. What could be wrong?

I dropped a few photos below: (1) the male end of the DIN on the first stage, (2) the rig screwed together, and (3) the bastard hole that is hissing like a cobra.

Help.

 

[Alekseolsen]

you've likely turned your reg to loosen/tighten, don't do that!

now, find the correct allen key size and tighten the DIN connection on your reg.

 

[Palmetto Dive]

you've likely turned your reg to loosen/tighten, don't do that!

now, find the correct allen key size and tighten the DIN connection on your reg.

Hey, I appreciate the answer to my question. I would like to ask a follow up. Not sure what you meant that I likely turned my reg to loosen/tighten. Does that mean that you believe that I turned the actual body of the first stage to tighten the rig?

Would love some more info if you have it. I’m new to this and need the knowledge.

Also, I have several Allen keys and will tighten my DIN connection as you suggest. Any advice on where to find that Allen screw to tighten?

Thank you

 

[Alekseolsen]

Thats what I believe yes, it happens from time to time with all of us.

The allen key is what you can see in your photo off the O-ring on the reg. If metric its likely a 4 or 5mm allen key.

Now what happens when you "turn the body" is that the DIN connection in fixed to the valve, and you loose the connection between the reg and the DIN connection when turning.

 

[stepfen]

The allen key is what you can see in your photo off the O-ring on the reg. If metric its likely a 4 or 5mm allen key.

NO NONO no no no no!!!

This allen key is to access the filter. IT IS NOT made to tighten the DIN assembly on the reg. You will find the actual allen key that MAYBE needs tightening after you remove the filter and it is usually larger than the one you see. For example the outer/first one is a 4mm allen key in Scubapro regs while the inner one is 6mm (if I remember right). Furthermore these usually have specific and very different torque requirements.

And I say "MAYBE needs tightening" because if that was the case, air would leak from the reg side of the DIN assembly - NOT from the hole on the valve.

Air leaking from the hole indicates that the reg doesn't seal to the valve properly for whatever reason (damaged valve seat, damaged valve threads damaged o-ring, reg not tightened properly are few posibilities). Trying with other tanks/regs can help eliminate few possibilities and maybe help the OP locate the issue.

Since this reg is new, and it seems the OP has not much experience, I'd suggest the OP to contact the seller/manufacturer.

 

[Edward3c]

Scubaboard,

I feel like an idiot. I finally purchased my first regulators. I admit I fell in love with the sleek aesthetic of the DIN valve first stage. I’ve used them before, no problem. But tonight, I went to set up my DGX Custom Dive Rite XT1/XT2 DIN package and when I screwed the first stage into the tank valve, air kept escaping violently from the time escape hole behind the threads on the tank valve.

The o-ring looks good to me. Brand new, and all. I re-threaded it several times to make sure I wasn’t screwing up the threading. What could be wrong?

I dropped a few photos below: (1) the male end of the DIN on the first stage, (2) the rig screwed together, and (3) the bastard hole that is hissing like a cobra.

Help.


View attachment 864270View attachment 864271View attachment 864272

I can’t tell from the pics. Are you fitting a 232bar reg to a 300bar cylinder.

 

[Umuntu]

Is the DIN on your regulator 200 bar or 300 bar ?

Is your tank valve 200 bar or 300 bar ?

A 200 bar DIN regulator in a 300 bar DIN valve will not seal.

 

[stepfen]

From the manufacturer's site: The first stage is environmentally sealed for cold water performance, and comes standard with a 300-BAR DIN connector.

 

[Sascha314]

Please check carefully, if you have the same and proper thread sizing in both tank and first stage.
Unfortunately there exist similar but wring sizes which fit at first glance but do not match, the 200 vs 300 bar is a good hint.

 

[happy-diver]

Your din fitting is incompatible with your valve

Enlarge the indent inside the back of the valve