Small wing for small cylinders, where to buy?

[jengineer61]

Gotta agree with NotingClever. Pull dump can be nice but it also introduces a failure mode. When the BC's go in for their annual check ups the system is pulled to make sure it works. However from my observation the BC is not worn when this is done but rather one hand is on the inflator and the other hand is at the top on the dump valve. It is pulled and air is dumped. But what does not happen is the connection stress test. If you wear the BC then you can pull the inflator and if that connection is weak due to age it may break it. This should be caught during annual inspection.

So two failure options one more likely than the other
1. wire breaks and you are back to dumping as you were taught in open water
2. tear off the hose at the shoulder connection and all inflation lost.

my two cents

 

[rongoodman]

All you need to is to go a little head down and reach around for the rear dump. All the air will be right there.

 

[bradlw]

I’ll offer a contrasting opinion…

Pulling on your inflator-deflator hose sounds really good until the wire breaks.

BTDT.

I removed the wire, couldn’t find a replacement and then (mistakenly) felt like I was “limping”.

That little Zeagle back inflate wing was a great starter BC but I’d never go back to using a pull-dump wire inside my inflator-deflator hose. Its primary function is too important to risk complication for an additive convenience. One doesn’t need to raise one’s hand above their head for a controlled release of air from their BC. Simply roll a little to the right from neutral trim and this works just fine.

Gotta agree with NotingClever. Pull dump can be nice but it also introduces a failure mode. When the BC's go in for their annual check ups the system is pulled to make sure it works. However from my observation the BC is not worn when this is done but rather one hand is on the inflator and the other hand is at the top on the dump valve. It is pulled and air is dumped. But what does not happen is the connection stress test. If you wear the BC then you can pull the inflator and if that connection is weak due to age it may break it. This should be caught during annual inspection.

So two failure options one more likely than the other
1. wire breaks and you are back to dumping as you were taught in open water
2. tear off the hose at the shoulder connection and all inflation lost.

my two cents

OK, I can understand the theoretical failure mode of the elbow and tugging on it
I would argue though that pulling the hose up over your head probably puts more stress on the elbow
but either way, that seems like a longshot failure mode.

But I'm not understanding the cable thing. That seems extremely unlikely
but even if the cable does brake, the failure mode would be the valve's normally closed state under the spring force....so non-issue

Spring failure, or seat failures are another failure mode, so this falls in line more with the idea that the more OPV's you have in the BC, the more failure point potentials you have... well more than two of them.. because two is one and one is none from a redundancy perspective.

These seem more like arguments why someone doing extended DCL diving would be concerned with
but then maybe I'm misunderstanding what ya'll are getting at with the cable failure.

 

[Agro]

Me too ha ha ha very safe grab inflator no fiddling move your hand one inch for an immediate bulk dump, or not!

View attachment 902795

What about one of these chief they are small, no inflator or dumps for postage

View attachment 902796

Brand new

Noice!

Thank you but at the moment postage from US to Switzerland is very expensice. Not postage itself but Swiss customs.

 

[happy-diver]

Yeah they came with a magnificent inflator shoulder dump hose set up which I put on all my stuff for uniformity

But
but
but
why do you have 6?

or 8 or 9

So someone tell me how the wing on the left is marked 30 and the right one of the hanging ones,18

 

[happy-diver]

what ya'll are getting at with the cable failure

Absolutely nothing, as the inflator deflator hose lifting still functions perfectly with a broken cable

 

[SelfDiver]

Yeah they came with a magnificent inflator shoulder dump hose set up which I put on all my stuff for uniformity



or 8 or 9

So someone tell me how the wing on the left is marked 30 and the right one of the hanging ones,18

View attachment 902961

Like...are you selling them?
Do you rent them out?
Do you just hang them and look at them like a baby crib Carousel for adults?
Is it a kink thing?
I need answers

 

[Agro]

Happy diver, a friend of mine has a China wing, it looks exactly the same as yours but my Dive Rite pull cord shoulder deflator does not match. China thread is much smaller than Dive Rite's.

Do I understand you right, you bought your China wing including a pull cord shoulder deflator? This would be best solution for me. Where did you buy it? Link?

To all: thank you very much, great discussion here.

 

[happy-diver]

I install my own shoulder dumps on all my stuff, all the Aliexpress stuff I've found comes with plain elbow

If I don't have it in my box I buy from here, to Australia

BC Aircell (Wing) Parts

We are often asked if our generic or 'brand X' parts are compatible with 'brand Y'. With a few exceptions, our answer has to be 'we don't know' if we are not an authorized dealer for your brand. There is very little standardization of molded parts within the recreational diving market and NO...

www.divegearexpress.com

DGX Gears Wing Replacement Parts

These are replacement parts for the DGX Gears Wing. Note the threads on the bladder flange have changed and the two different versions use different gasket, elbow, collar nut, and pull-dump fittings.

www.divegearexpress.com

Read all this stuff and see what you think, read everything twice and see what you think

 

[Agro]

I install my own shoulder dumps on all my stuff, all the Aliexpress stuff I've found comes with plain elbow

As I have a Dive Rite shoulder dump in my box it would be great to find a Chinese Wing having the same thread. Can you please measure the outside diamter of your China thread on wing? This would be very helpfull. Thank you!!!