Apeks reg question

[John_B]

sure it will, in highflow the water blasting in your face can (I wont say easily...) deflect the soft rubber diaphram. So to prevent this the mfg put in the cool chrome (or black) plastic cover that deflects direct water current.

What it will do when it deforms enough is fill the mouthpiece with water, at that point bubbles are the least of your problems. I bought a used TX50 second stage that had supposedly "recently been serviced"; the seller and I must've had different definitions of "recent" as the ancient diaphragm was heat-warped and would deform at which point you really appreciate the utility of a bungeed backup and a buddy.

 

[Fishpie]

There have been a whole bunch of Apeks 2nd stage diaphragms where the center hard plastic friction surface warped like a taco. This mainly applies to the full size 2nd stages.
It's a common problem JB. I've never had one leak on me but I have replaced them when they curled past 45 degrees.

 

[beanojones]

How much are the replacement diaphragms?

Why do they bend so much? I have never seen that even with really old gear of other brands. Did they just spec a really light plastic bit for performance reasons?

Also, anybody have any luck baking them flat, or something? I got twelve of them that all have the 'taco'd' plastic bit.

 

[PhilEllis]

How much are the replacement diaphragms?

Why do they bend so much? I have never seen that even with really old gear of other brands. Did they just spec a really light plastic bit for performance reasons?

Also, anybody have any luck baking them flat, or something? I got twelve of them that all have the 'taco'd' plastic bit.

The rigid center disk on Apeks inhalation diaphragms is clearly thinner than many other brand. I would assume this is done for some type of performance advantage. For your TX regulators, the part number for the inhalation diaphgram is AP2023. These are about $22 each. If I remember correctly, Apeks/AquaLung identified a long-term manufacturing/design problem with the inhalation diaphragms in about 2001. It dealter with both the cupping of the disk and "shrinkage" of the diaphragm itself. There might even have been some no-charge replacements for those then. If you have quite old Apeks TX second stages and the center disc is deformed, you really need to replace those diaphragms.

Phil Ellis

 

[beanojones]

So can I buy 12 of those from you? (Just got two more TX50's that I am sure will have the same taco-ing.)

Or are those considered 'service' parts?

 

[Nathyne]

honestly dont listen to these idiots with there bad advice i have serviced lots and lots of apex regs. simple fix take it back the the guy who serviced it and quit improperly adjusting your reg and cutting the **** out of your seats. the service guy ****ed up most likely did a rushed job and did not adjust it properly

 

[Nathyne]

Not looking to hijack this thread, but while were talking about free flowing Apexs reg I had one this weekend. I dive the XTX200 and I put a 7' hose and took it out. I loved the feel of the Mi-flex hose but I did have a slight free-flow at the end of the dive when the tank pressure was around 700psi. Switched back to the stock hose on the boat and had no free flow with the same tank @ around 600psi or the next dive start to finish. Suggestions....... Thanks, Scott

wow someone who actually dives a mi-flex hose. hope you didn't pay more for it because you can get the exact same thing by taking a standard hose and cutting the protective rubber coating off. id like to slap you for making such a stupid choice.

 

[Couv]

That's a bit harsh; don't you think?

Your rude comment not withstanding, that is an interesting bit of information. Can you really strip the rubber hose cover off of a standard hose and have a hose with basically the same properties that makes a Miflex so popular? Is there anyone else out there who can confirm this?

Edit: Never mind the above; I just found this post by Luis:

That is correct. I have seen hoses were the outer cover has been removed and in the past there have been Scuba hoses that did not fashion an outer cover. Not all constructions are the same.

Most pressure hoses have a braided fiber shell that provides the primary the structural integrity to the hose. Some may have more that one layer, the material of the layer or layer can vary, the weave can also be very different from one to the next. Assuming that all hoses are created equal just shows a basic lack of knowledge on the subject.

As a user most hoses look close to same to most of us, but the manufacturing process, material selection, etc. makes a lot of difference. There are engineers that have spent a good chunk of their life designing pressure hoses for many applications.

Marketing often does exaggerate and distorts the fact, but believing that everything is the same is as naive as believing everything that marketing puts out.

 

[Crab_bait]

Nathyne, I wanted to start diving a 7' hose, so for a few extra buck I'd rather buy a very flexible one than take a razor knife to a brand new one. Not everyone dives on a shoe-string budget so don't worry about my $$ or my equiptment. I don't know why you felt it necessary to be a jerk." id like to slap you for making such a stupid choice." Hope you stay in Canada!

 

[beanojones]

How did the MiFlex argument end up in the Apeks thread?