What¦s the best possible air valve to be installed on a basketball?
What¦s the best possible air valve to be installed on a basketball?
(OP)
The basketballs are not for playing but for engineering purposes and they need to lose as little air as possible. My concern is that the usual valves used in these balls are not that good in preventing the air leaking. Can another valve, like tire valves, be installed in a ball when it is manufactured?





RE: What¦s the best possible air valve to be installed on a basketball?
RE: What¦s the best possible air valve to be installed on a basketball?
RE: What¦s the best possible air valve to be installed on a basketball?
However, if you fill it with pure argon (check a welding shop), the larger size of the atom could potentially cut down on that somewhat. Also, argon is inert and will not react with various hydrocarbons which are going to be impossible to remove from the material in of the ball itself. These reactions will produce products which may or may not be as dense as the air in the ball.
And if you're worried about the valve, then fill it as much as you can with rubber cement -- that may involve having to drill out the valve a small amount to get an appreciable amount of cement inside with an air surface for it to cure. Or apply the cement via a (relatively) large-gauge hypodermic needle.
Engineering is not the science behind building. It is the science behind not building.
RE: What¦s the best possible air valve to be installed on a basketball?
RE: What¦s the best possible air valve to be installed on a basketball?
RE: What¦s the best possible air valve to be installed on a basketball?
TTFN
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RE: What¦s the best possible air valve to be installed on a basketball?
Another possibility, although more expensive, is to use inflatable pipe plugs. These come in various sizes and shapes. Here's a link to one...
http://thepipeplug.com/InflatablePressurePlugs.htm
RE: What¦s the best possible air valve to be installed on a basketball?
"Art without engineering is dreaming; Engineering without art is calculating."
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RE: What¦s the best possible air valve to be installed on a basketball?
is this for a prototype or a production app ?
you want the balls to absorb the pressure pulse in the fluid, yes ? then size, shell elasticity, internal pressure might be variables you might want to investigate ... basket balls sounds like grabbing something near-to-hand rather than something designed for the job.
RE: What¦s the best possible air valve to be installed on a basketball?
RE: What¦s the best possible air valve to be installed on a basketball?
ONCE you use it - be careful. There is usually a warning on the label about this. I think they may use a flammable gas??
RE: What¦s the best possible air valve to be installed on a basketball?
Size is not relevant, we simulate the water-hammer and determine how much air volume do we need and then divide it per the balls volume and obtain the number of balls necessary.
Some helps about the valve is welcome
RE: What¦s the best possible air valve to be installed on a basketball?
Ron: I saw the page but couldn´t figure out exactly how it works. Cold you give me an idea?
RE: What¦s the best possible air valve to be installed on a basketball?
what sort of pressure are we talking about 10psi ? 1000psi ??
bicycle tyre valves, Presta valves, have a locking feature that should be superior to a typical "basketball" valve.
RE: What¦s the best possible air valve to be installed on a basketball?
Most RO water reservoirs, with admittedly low psig values, last fot years without recharging.
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RE: What¦s the best possible air valve to be installed on a basketball?
IRstuff, I see your point. I suppose the Schrader company is the best option then? Only thing that remains to be seen is if it can be installed in basket-ball type of ball.
RE: What¦s the best possible air valve to be installed on a basketball?
how much leakage are you experiencing ? what pressure do you inflate the balls to ? if the leakage is significant, then either you're trying to hold a very accurate pressure or you're trying to hold a very high pressure ??
RE: What¦s the best possible air valve to be installed on a basketball?
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RE: What¦s the best possible air valve to be installed on a basketball?
What is Engineering anyway: FAQ1088-1484: In layman terms, what is "engineering"?
RE: What¦s the best possible air valve to be installed on a basketball?
RE: What¦s the best possible air valve to be installed on a basketball?
RE: What¦s the best possible air valve to be installed on a basketball?
RE: What¦s the best possible air valve to be installed on a basketball?
TTFN
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RE: What¦s the best possible air valve to be installed on a basketball?
RE: What¦s the best possible air valve to be installed on a basketball?
TTFN
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RE: What¦s the best possible air valve to be installed on a basketball?
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Have you thought about something like these air bladders, there are numrous manufacturers?
http:
RE: What¦s the best possible air valve to be installed on a basketball?
RE: What¦s the best possible air valve to be installed on a basketball?
RE: What¦s the best possible air valve to be installed on a basketball?
If you use it as a fill you could use open cell foam.
http://www.closedcellfoams.com/polyethylene.html
RE: What¦s the best possible air valve to be installed on a basketball?
Unclesyd, the thanks for the sggestion but I would answer with the same previous message to "byrdj"
RE: What¦s the best possible air valve to be installed on a basketball?
schrader valves are typical tire valves. presta valves are more expensive (better?) usually seen on bicycle tires that have a mechanical locking feature.
i think you need a flexible bladder to react to the pressure pulses from water hammer. have you experimented with typical valved bladders and found them to be unacceptable ? or are you just trying to anticipate a leakage problem ? is it critical to your application that no (none, nada) air escapes into the fluid ? (i can see why) could you put an airfilled bladder inside a fliud filled bladder (which would act as a secondary containment and still might be flexible enough) ??
RE: What¦s the best possible air valve to be installed on a basketball?
RE: What¦s the best possible air valve to be installed on a basketball?
and you're talking to someone about making these containers (balls, bladders, inner tubes, whatever) ... don't they have suggestions and experience ?
i'd've thought that you'd've to be very strict on the leakage, so as not to pollute your fliud (i'm assuming you've got a hydraulic system or something). how does your fluid/system tolerate gas ? there are two ways to achieve a very good seal ... 1) a single virtually perfect seal, or 2) two pretty good seal in parallel (a container in a container). there are lots of ways to seal a container, schrader and presta are two common types, talk to a valve manufacturer.