NEEDLE VALVES

[jale]

Tks did you tried it in cold water using big drygloves? Knob look very tiny and it's between the 2 hoses ....

As I said before, if you can handle clips with your dry gloves, it should not be a problem to manipulate the needle. Like everything else, it is just about getting used to.
That being said, I don't understand why nobody (except KISS for a few units) doesn't come out with a bigger or at least more "touch -friendly" needle valve.
I used to dive that one and it was "easier"

 

[Long-John-Silver]

Swagelok produce tons of different needle valves.
Anybody know the Swagelok part number of those used on Fathom/Subgravity MAVs?

 

[SavageSeaCow]

Tough to beat the fathom needle valve. I’ve got two in service for just under 3 years. Never needed any maintenance and easy to use.

Oxygen Needle MAV - Fathom Dive Systems

www.fathomdive.com

Can the fathom needle+MAV be added to any existing unit, or does it require the apex high IP reg+hoses?

 

[tbone1004]

Can the fathom needle+MAV be added to any existing unit, or does it require the apex high IP reg+hoses?

you can add it to any unit. The high IP is for depth more than anything, you'll just have it a little bit more open than if you had the high IP.

 

[Long-John-Silver]

No idea about Swagelok model?

 

[grantctobin]

No idea about Swagelok model?

I'm not sure the incentive of a mfg to share that information. The info is on the forums if you look around, but Chris Kennedy is probably the best person to ask.

 

[happy-diver]

Andrew Goring should be able to make you one as well. jackaranda63@gmail.com

Also there are the Chris Kennedy needle valves. I have one of these and am happy with it.

Chris builds the valves for Andy

grog24851@yahoo.co.uk​

0411486458 Australia

 

[tbone1004]

No idea about Swagelok model?

I can't confirm which one Fathom uses but it is likely Swagelok SS-SS2. Like @grantctobin said though, they're probably not going to tell you exactly which one but it is highly unlikely that you will save any appreciable amount of money vs. buying one from Chris or Fathom.

Edit, the valve itself is going to cost you about $250 before you machine the block, so unless you have a machine shop or really want to mess with it, you'd be surprised at how little markup is really on those bits.

 

[211ratsbud]

Go through the specs not hard to find something usable. They're definitely not cheap.

https://www.swagelok.com/downloads/webcatalogs/en/ms-01-142.pdf

Metering Valves, S, M, L, and 31 Series | Needle and Metering Valves | Valves | All Products | Swagelok

products.swagelok.com

 

[Long-John-Silver]

I'm not sure the incentive of a mfg to share that information. The info is on the forums if you look around, but Chris Kennedy is probably the best person to ask.

I couldn't find it on the forum and I'm asking here not to the mfg.
The needle valve in itself is a third-party product.

Thanks