Tank valve: identification and service kit

[sjipjack]

Hello!
Please can you help me with identification of this valve:


There are inscriptions on this valve: CE 0474, DIN 477, M25x2.
A person, who serviced my regulators didn't service this valve because he works mainly with Aqualung, and this is not an Aqualung valve.
But he guessed that it could be Nautec valve and maybe he could help me if I buy service kit for this valve.

I've searched in Google "nautec valve" and found this page:
Nautec valve kit
But, as I suppose, the picture on this service kit doesn't correspond to my valve.

Also I found these valve kits there:
valve kit
Double valve kit

Does anybody know type of my tank valve?
And what valve kit can you recommend to buy?

Thanks!

 

[tbone1004]

looks similar to a Beauchat valve that I have but not sure of any service kits for them

 

[Pavao]

Looks like Jar Jar Binks

 

[Scared Silly]

The valve is from Coltri-Sub:

http://www.coltrisub.it/EQUIPMENT/ITA/08_CYLINDERS/valves_tank_manual.pdf


PS I see you joined 2009 and your first post is 6 years latter. That is a long time lurking ...

 

[scubafanatic]

The valve is from Coltri-Sub:

http://www.coltrisub.it/EQUIPMENT/ITA/08_CYLINDERS/valves_tank_manual.pdf


PS I see you joined 2009 and your first post is 6 years latter. That is a long time lurking ...

...maybe he's just got a VERY SLOW internet connection ?

 

[sjipjack]

The valve is from Coltri-Sub:

http://www.coltrisub.it/EQUIPMENT/ITA/08_CYLINDERS/valves_tank_manual.pdf


PS I see you joined 2009 and your first post is 6 years latter. That is a long time lurking ...

Thanks a lot!
Yes, I was very shy to start writing here. Actually I tended to talk at our local forums (English is not my mother tongue).
What do you think, what service kit from here is suitable for my valve? At least there are two different types: Kit double valve (Code: VA800195) and Kit 2 - 2000 (Code: VA800196). Even more difficult question is where I can order them.
Maybe I should contact Coltri managers and they help me with this problem.

And one more question if you don't mind. I've noticed that small but visible part of painting is split from my cylinder. You can see it on the first foto which I have posted in the first message here and here:


As I suppose, it was made when my cylinder was inspected and tested a few days ago. In fact, they made more damage to its external surface than previous 5 years of diving. This include scratches etc. But this split is the most deep. Maybe they make this damage while try to open the valve. I am not sure. But my question: is this dangerous or not? Am I right that zinc coating is still there and it would protect steel from corrosion, though epoxy coating is split? What do you think, is there any need to coat this place with some varnish? Or simply make nothing is better choice?

As for part of cylinder coat which was intentionally removed to make inspection and test mark - this place was covered with varnish as I understand. But as for these splits straight under valve - as I suppose they are not covered with varnish. Is this problem or not? I use this cylinder mainly in fresh water.

 

[Scared Silly]

Not worries with your English, even for those whom English is our native tongue we not do always write goodly .

The double valve kit is the one you want. I would contact Coltri-Sub and ask them for a local dealer. Servicing a valve is not hard if you want to perform the service yourself.

With you cylinder you can touch up the paint. But the galvanization is probably okay. After an cylinder inspection I typically touch up the test markings. Just make sure the cylinder can dry fully before storing it.

 

[sjipjack]

With you cylinder you can touch up the paint. But the galvanization is probably okay. After an cylinder inspection I typically touch up the test markings. Just make sure the cylinder can dry fully before storing it.

Actually it seems that the traces of corrosion are already visible. Note small light brown spots on these photos:
https://img-fotki.yandex.ru/get/15547/5436481.22/0_c7c7e_4d7e8dd6_XXXL.jpg
https://img-fotki.yandex.ru/get/16181/5436481.22/0_c7c7d_b71078f1_XXXL.jpg

So maybe this process started under the epoxy coat years ago. And the coat splits easily because its base was not firm.
One of the scenario how this could have happened: I dive in winter with air temperatures below zero.
For some reason water penetrates into very small holes between coating and steel and then, after it freezes, the ice widens and deepens the gap. And so on.

I am not sure that this scenario is true. I am even not sure that these small brown spots are traces of iron corrosion, though this is highly probable as I suppose (zinc oxides are white at room temperature). But the person who inspected my cylinder said that it's O.K. and there is no reason to worry even after I told him about that split of coat. So he said that there is no need to make anything with this place.

Additional problem is that I don't know what exact paint I need and how deep I ought to clear the surface before painting. Maybe I make more harm to this place? So is this really good choice to make nothing even if these spots are traces of iron corrosion?

Thanks!