HP Hose disconnect fitting?

[rk288]

I have a QD for my Pro Plus II console and have had no problems. I like being able to take my computer back to the room and keep it with me when flying.
Now I'm looking at back up for a liveaboard trip. I may even go hoseless wrist computer but I want some redundancy out in the middle of nowhere so I'm also thinking about an analog SPG backup connected to the QD. That way I have some interesting optional configurations...

 

[redacted]

Can you tell me more about this part? I know that while the regs are soaking (if not pressurized - I don't own a tank) one has to be careful not to press the purge. But I didn't realize that the opposite would be beneficial while they were in storage. What do you do to make them stay "pressed"?

(I would like to learn more about how my regs work, so I could decide these things for myself; but for now I would still like to know how best to store them.)

I have a Zeagle Flathead VI with ZX and Envoy second stages, if that makes any difference.

Thank you

Almost all 2nd stages have the seat pressed firmly against to orifice when the regulator is in storage. It takes a long time, but this does engrave the seat and reduce performance - one reason for an annual service. A few modern high performance regs (Scubapro S600 & Atomic 2nds) have designs which relieve this pressure. Many older regs were designed to turn a switch or insert a spacer to relieve this pressure. Unfortunately, such devices and designs are less and less common. Looking at the picture of Zeagle 2nds, they do not appear to have such a design.

 

[redacted]

Had a bit of debris fall into an ambient port of a Scubapro mk10 which are quite smaller one day and it led after rolling around to the piston jamming open so I bother protecting my holes.

I was on a camel in a sandstorm with a burlap bag slung over my back and my sandwiches became inedible.

The difference between edible and inedible is strongly influenced by how hungry you are.

The Mk10 ambient holes are quite a bit larger than the HP opening in most hose ends and 1st stage ports. I suspect you are thinking about LP ports. But that only changes the size of what might get in while the openings are unprotected. If leaving a port unplugged makes you nervous, then , by all means, plug away.

 

[Blue Sparkle]

So, how do you actually hold the second stage purges open while the regs are in storage? I mean, I know how to press and purge, but do you have something that physically holds the purge cover down, or is there a clever way to do it from inside, or ?

Thanks

 

[redacted]

So, how do you actually hold the second stage purges open while the regs are in storage? I mean, I know how to press and purge, but do you have something that physically holds the purge cover down, or is there a clever way to do it from inside, or ?

Thanks

This was the original Scubapro solution: http://www.scubaproregulatormuseum.org/109_ADJ.JPG

Part # 28 is a plastic key that fit into the "S" and turned to hold in place. It depressed the diaphragm about 1/4 inch relieving all pressure on the LP seat. I suspect they may have had some problems with that design as it was in direct contact with the soft diaphragm. A later design was simply a device that fit between the metal and the rubber cover and did not touch the diaphragm. A yet newer design use on older plastic regs was a purge button that could be depressed and turned to lock into place. Newer regs with the hard rubber front cover (like your Zeagle) makes this feature difficult at best. If you use something that depresses the cover, it tends to take a set in storage resulting in a leak until it resumes its original shape.

 

[spectrum]

Questions: anybody here have a quick disconnect on their console/computer hose? Had any problems with it? Gald you have it? Useful little piece of hardware, or is this just adding a fragile, failure-prone potential problem?

The one I'm looking at is from Aeis ("Aeris High Pressure Hose Quick Disconnect") but would be open to other brands.

That is the same item as the Oceanic Data Link (sister brand) I think I have seen it under other brands so it may not even be of their manufacture. I have been using that item on all of our sets for 3 years or so with no real issues. My reason for use is that I do prefer a console and have a number of regulators (DIN, Yoke, Double Hose) and need to move the instruments around at will.

It does add another set of salt accumulating threads and you do need to make sure it remains tight. It also represents a considerable projection from the first stage and one would be naive not to consider it several added failure points. If your only desire is to facilitate packing for an occasional trip I would be more clever in packing or unscrew the hose from the first and plug the ports to travel.

Pete