schrader valve cores
Posted: Mon Dec 22, 2008 12:01 pm
These are the two variations of valve core I've encountered since I started playing with schraders, any other types out there?
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Posted: Mon Dec 22, 2008 12:05 pm
i've only seen the right hand type... there can't be too many other variations... can there!?!?!?
Posted: Mon Dec 22, 2008 12:11 pm
No diea, that's why I'm asking. Reason being that the left type has an exposed spring and can therefore easily be modded to crack open at low psi.
Posted: Mon Dec 22, 2008 12:15 pm
maybe just make your own core? it should be too hard, just a bit fiddly.jackssmirkingrevenge wrote:No diea, that's why I'm asking. Reason being that the left type has an exposed spring and can therefore easily be modded to crack open at low psi.
i just use check valves because they crack open at low pressures so i core my schraders.
Posted: Mon Dec 22, 2008 12:36 pm
I see you got the pictures. Yeah I have olny seen the right one. Are they universal?
Posted: Mon Dec 22, 2008 1:00 pm
These are the only types I've ever seen in person.
Jack, where did you find that other one?
Jack, where did you find that other one?
Posted: Mon Dec 22, 2008 1:55 pm
Here is a picture of some that I picked up...
Posted: Mon Dec 22, 2008 1:56 pm
We should make somthing called the house of shraders. That's a different one you have gippeto.
Posted: Mon Dec 22, 2008 2:05 pm
Nice collection you have there David 
Posted: Mon Dec 22, 2008 2:58 pm
(In old man voice)...Back in the day...
When I was a kid on the farm, every valve stem had that kind of core.
I've been looking for them in stores for quite some time now, to no avail.
It would only take a second with some side cutters, and the spring would be no more.
I just got off the phone, although they are no longer a stocking item at most stores, they are still available, I've some on the way from a local tire shop.
Aircraft Spruce has a schrader valve core 2300hv which is similar.(but rated to 2000psi.)
If you think I might be calling my local A.M.E. next, you're probably right.
When I was a kid on the farm, every valve stem had that kind of core.
I've been looking for them in stores for quite some time now, to no avail.
It would only take a second with some side cutters, and the spring would be no more.
I just got off the phone, although they are no longer a stocking item at most stores, they are still available, I've some on the way from a local tire shop.
Aircraft Spruce has a schrader valve core 2300hv which is similar.(but rated to 2000psi.)
If you think I might be calling my local A.M.E. next, you're probably right.
Posted: Tue Dec 23, 2008 3:46 am
Haven't the foggiest, I pick up inner tubes from the street, heaven knows where that came fromGippeto wrote:Jack, where did you find that other one?
Posted: Tue Dec 23, 2008 4:12 am
How about using a presta valve?
these cores look moddable
these cores look moddable
Posted: Sat Jan 17, 2009 8:51 am
Our local roadhouse/service station has them. Maybe you should try there? I have dozens of those cores.Gippeto wrote:(In old man voice)...Back in the day...
When I was a kid on the farm, every valve stem had that kind of core.
I've been looking for them in stores for quite some time now, to no avail.
It would only take a second with some side cutters, and the spring would be no more.
I just got off the phone, although they are no longer a stocking item at most stores, they are still available, I've some on the way from a local tire shop.
Aircraft Spruce has a schrader valve core 2300hv which is similar.(but rated to 2000psi.)
If you think I might be calling my local A.M.E. next, you're probably right.
Posted: Sat Jan 17, 2009 11:09 am
Believe me, as an ardent supporter of low cracking pressures I've checked everywhere locally.
Posted: Sat Jan 17, 2009 3:45 pm
I've seen a few of the ones Gippeto posted, with the long spring. Some of the older trailers they pulled out of the back lot at my old employer had those. I think they've been done away with in favor of the smaller type.
The one JSM posted, with the external spring wrapped around the button, I have never seen before. They certainly can't be common. Leaving the spring exposed to the outside seems like a really bad design to me.
The biggest variation I usually see is the length of the button and the color of the seal.
The only ones I've seen currently in use on passenger or truck tires are the type with the internal spring. Some of the big mining equipment tires I've hauled have used larger types of valves that allow more airflow, but then again, they use an on-board inflation system most of the time.
The one JSM posted, with the external spring wrapped around the button, I have never seen before. They certainly can't be common. Leaving the spring exposed to the outside seems like a really bad design to me.
The biggest variation I usually see is the length of the button and the color of the seal.
The only ones I've seen currently in use on passenger or truck tires are the type with the internal spring. Some of the big mining equipment tires I've hauled have used larger types of valves that allow more airflow, but then again, they use an on-board inflation system most of the time.