tank valve safety wheel

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My newer worthington tank has this valve. I glance at it on occasion but don't want to get out of my normal routine of
checking valve position. There does seem to be fewer turns to full open and full closed than my older valves. Not
a problem just something I noticed, I like the valve.
 
While I am sure it is quite reliable, it is an additional failure point. If you are prone to forgetting to turn your gas on and checking it, then it might be a safety advantage. Otherwise, it's like putting a mirror at the bottom of a drinking glass so you can see that your mouth is on the glass. Not really necessary.
 
They are alright, for the quick check. If you already have good valves then I would not spend the money to change them. If you have a bad valve them and need to replace then go for it. They are kind of cool but not a must have.
 
I did a cave class in October. These were installed on the manifold of the tanks I rented. Two observations 1) they knobs turn very easily, which made valve shut down drills that much faster. 2) the knobs turn very easily, I can see how you could accidentally shut down your left post without knowing it if you were wiggling through some tight spots.
 
Well maintained and serviced valves will turn easy. This gimmick does not make turning easier. A bad/sticky turning valve will not sudenly turn easier because you fiited these new knobs!!
 
My newer worthington tank has this valve. I glance at it on occasion but don't want to get out of my normal routine of
checking valve position. There does seem to be fewer turns to full open and full closed than my older valves. Not
a problem just something I noticed, I like the valve.

I took a knob off one of my valves last week. I don't see how the knob would change how many turns it takes to fully open or close. That seems like a function of the valve itself, not what knob you have on it.
 
That's the same question I have. What's the mechanism for these knobs to have less turns to fully open/close. I'll find out tomm I guess when I take them apart.
 
I see those things as having zero value and like the 3 cubic foot spare air are just a source of revenue to the seller with no real benefit to the buyer.
 
My newer worthington tank has this valve. I glance at it on occasion but don't want to get out of my normal routine of
checking valve position. There does seem to be fewer turns to full open and full closed than my older valves. Not
a problem just something I noticed, I like the valve.

I took a knob off one of my valves last week. I don't see how the knob would change how many turns it takes to fully open or close. That seems like a function of the valve itself, not what knob you have on it.

That's the same question I have. What's the mechanism for these knobs to have less turns to fully open/close. I'll find out tomm I guess when I take them apart.

There is no turn-multiplication on these wheels. You don't need to figure out how it happens because it does not happen. They are a bigger knob, and they have an internal feature that shows red or green. That's it. they are really useful on a rental line for a DM on a diveboat; he can look around and just see the status of all the folks getting ready to dive. Alos good poolside for an OW class.
 
I have 4 of them on the 14 tanks in my garage.
I often loan my tanks to others.
I do not think that any one of the divers in my regular group pay any attention to the color being red or green.
However,
We all like the larger diameter of the wheel.
I like them a lot as I intermittently have arthritis pain and general stiffness in my hands.
They are easy to turn at times.
As they cost about $6 more than a regular assembly, as I replace these parts I will most likely install them on my fleet.

Chug
Can hit DGX in Pompano with a slingshot from my backyard,
On a good day,
With a west wind,
If it is daylight.
 
Last edited:
https://www.shearwater.com/products/swift/

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