Apeks DST4 First Stage & Scubapro R380 reg.

[JAG]

Dear all,

Can I swap my R380 from my MK16 first stage onto an Apeks DST4??

Many thanks,

Ian

[tom]

I put an R190 on a DS4 and it worked fine. I asked on here about it at the time, and the general consensus was that it was OK as they work off the same interstage pressure (10 bar IIRC) but that some LDSs might turn their noses up at the combination when it came to servicing time. Ended up buying a new ATX40 second stage though, as it's a better breathe than the R190.

[tiewrapdiver]

give/sell me your DS4 as long as it not the turreted version and then you no longer have a problem

[M J S]

Originally Posted by tom

I put an R190 on a DS4 and it worked fine. I asked on here about it at the time, and the general consensus was that it was OK as they work off the same interstage pressure (10 bar IIRC) but that some LDSs might turn their noses up at the combination when it came to servicing time. Ended up buying a new ATX40 second stage though, as it's a better breathe than the R190.

The reason EVERY dive shop should turn their noses up is that each manufacturer must have their regulators perform to the EN250 standard prior to the regulator being available for sale within the EU.
I think that's 62.5 lpm over 25 cycles at 10 degrees C at 50 metres, but I'd have to check.

To service a first & second stage combination from two different manufacturers would require that the LDS have that particular combination tested (at a cost of tens of thousands of pounds) to ensure that it meets the standard.
Virtually all downstream regulators should work in all sorts of bizarre combinations, but there won't be a little certificate to say they work.

Just a little more paperwork to keep us all safe from ourselves.

Regards
MJS

[beanie]

Originally Posted by M J S

The reason EVERY dive shop should turn their noses up is that each manufacturer must have their regulators perform to the EN250 standard prior to the regulator being available for sale within the EU.
I think that's 62.5 lpm over 25 cycles at 10 degrees C at 50 metres, but I'd have to check.

To service a first & second stage combination from two different manufacturers would require that the LDS have that particular combination tested (at a cost of tens of thousands of pounds) to ensure that it meets the standard.
Virtually all downstream regulators should work in all sorts of bizarre combinations, but there won't be a little certificate to say they work.

Just a little more paperwork to keep us all safe from ourselves.

Regards
MJS

ah but nothing to say that we can't do it

octo regs for example you don't have to have the same octo as primary and they get serviced

[darthmoll]

Originally Posted by beanie

ah but nothing to say that we can't do it

octo regs for example you don't have to have the same octo as primary and they get serviced

its the same deal, it has not been tested.


The likes of the hse are very cagey about everything, they wont give a straight answer if you ask them, but they will create if they think the blame can be placed with someone, after the fact.

it seems quite clear to me why dive shops may not want to service a missmatched reg

[tom]

Originally Posted by M J S

The reason EVERY dive shop should turn their noses up ...
To service a first & second stage combination from two different manufacturers would require that the LDS have that particular combination tested (at a cost of tens of thousands of pounds) to ensure that it meets the standard.

Sounds absolutely fair enough to me, hope my original posting didn't imply otherwise - fully understand why that would be the case and not complaining about it. Is there a CE marking issue as well?

[Mdemon]

I've used a very battered R380 on a DST and it was fine. Nice breathe actually.

Any reason you can't just swap it back for the service?

Failing that, why not try the DIY route if you can be bothered?

[Bob Cooper]

Originally Posted by exnavyboy

Can I swap my R380 from my MK16 first stage onto an Apeks DST4??

Yes!
It's a good combination. IP is the same. There are no other "issues" .

Bob

[Bob Cooper]

Originally Posted by tom

Is there a CE marking issue as well?

No. There is no CE marking issue.

Bob