"pro" (combination) tank valves

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sandanbob

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Hi!

I did a search, but didn't see anything on this topic. Of course, I might not have used the right search terms. If there's already a thread, please let me know.

My question is- what sort of experiences have people had with the "pro" tank valves? I currently only have yoke style first stages, but would like the flexibility of being able to use DIN if needed, so I am considering getting two of them. I believe that I wouldn't be able to use the full capability of the DIN if I am not using high pressure (3400 psi?) Of course, at $65-$90 each, they aren't the cheapest "accessory", so I wanted to see what experiences others might have had with them.

Thanks!

Bob
 

CanadaDan

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The valves are engraved as having 3442PSI Service pressure. Plug in or out it's not an issue. I've used them both ways.
 

Tracy

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They are $39 each at DGX. They work great for whatever pressure you want to operate at.
 

2airishuman

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They're what I use. A few, mostly older, yoke regs won't fit them.

Try to get inserts that all use the same hex wrench. There are several "standards."

Dive Gear Express has generic ones for $39 and Thermo ones for $50. They often have B-stock Thermo ones in their bargain section for half off. Now is one of those times.
 

sandanbob

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Thank you for the replies! 2airishuman- thank you for the B-stock Thermo valves information.
 

happy-diver

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I use the LH valve for upside down pony and stage bottles mounted on my back and left
and right for sidemount bottles as I like the slightly longer smooth nub for loop bungees

They come in very nice boxes, just threw 10 away in the rubbish what a complete shame


A few, mostly older, yoke regs won't fit them.

With the flat sides and shallow depth of these valves and having just tried a dozen ancient regs that all fit

I wonder to which regs you refer
 

tbone1004

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they're fine, don't worry about it. Only extra charge you MAY face is a VIP on the tanks if the valve gets swapped, so either do it at time of VIP or find a buddy with a transfill whip.

DGX typically has Thermo's on sale for $25 that they've taken out of other tanks they're selling which is where we buy them.
Thermo 3000 Valve, Surplus
 

sandanbob

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I want to thank those who pointed me to DGX (2airishuman and tbone1004.) I ordered three of the Thermo's. That's why I figured asking my question here would be a good idea.
 

rjack321

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Personally I despise the Thermos - the stupid overpriced crush washer is just lame.

The DGX branded ones with the oring sealed bonnet nut are the bees knees.
 
https://www.shearwater.com/products/perdix-ai/
https://cylindertrainingservices.com/training-program/

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