Thinking about using this for all my stuff seems like an easy way to combine LPA with HPA. Looks like a pretty good approach I think; thoughts?
Thinking about moving away from Foster fittings and Fill Probes
- Thread starter LMNOP
- Start date
Schrader valves can be rated up to 15k psi but often, the base or threaded portion is not.
The other thing to consider is the plunger must be moved off its seat to fill the vessel. That is more effort than a chuck could overcome by hand.
There is also loss whe disconnecting the source.
Be wise and check ratings, good luck.
The other thing to consider is the plunger must be moved off its seat to fill the vessel. That is more effort than a chuck could overcome by hand.
There is also loss whe disconnecting the source.
Be wise and check ratings, good luck.
Upvote 0
Yeah I was thinking about this but the Foster males with the built in check valve (just about all on our PCPs) are the same as the plunger setup for the most part in the Schrader.
Upvote 0
Thinking only about the number of flat tires I have seen that where the result of leaking Schrader valve, I think I would stick with Foster fittings.
But good luck with it and let us all know how it works for you.
But good luck with it and let us all know how it works for you.
Upvote 0
Why? Tons of the fittings we see are brass including the big hoss DIN to QC ones like at Best Fittings.
Upvote 0
cheap insurance.
Brass may be fine. But stainless steel isn't expensive. You're talking about $1 part vs. a $.50 part.
Plus, I just have a thing for stainless. It's nice.
Last edited:
Upvote 0
I have to agree with jmohme. If you know a source of very high quality Schrader valves, maybe. . . but given how complicated they are compared to the fittings I already use, I don't see the advantage.
Upvote 0
Many of the the brass schrader valve fittings I looked at were rated at 150psi max. There were some rated at 2000psi max but I found nothing higher than that. less than half what you need for most PCP applications. Even some brass foster fittings I have seen, that have substantially thicker walls were only rated at 3500-4000 psi working pressure which is not enough for a 4500 psi cylinder or tank.
On the other hand, this stainless steel "Schrader" valve is rated at 5000psi.
On the other hand, this stainless steel "Schrader" valve is rated at 5000psi.
Upvote 0
I guess I don't see the need. All my air rifle stuff works fine. And being a cyclist, I have no interest is subjecting a Schrader valve to HPA.
Upvote 0
Our airguns have "locking" fittings for a reason. You'd be better off staying with the indicated fittings in the interest of safety in my humble opinion. I think you'd be creating a pain in the butt by switching over, but what do I know? It's not like filling a tire @ 45lbs, we're talking a few THOUSAND lbs of pressure!
Upvote 0
FOX Shocks uses some very nice schrader valves, rated for 8K, they also run about X6 more than the Foster fittings.
I'm thinking you are better off just being conventional.
I'm thinking you are better off just being conventional.
Upvote 0
Well, honestly, you might not be wrong. I may be approaching this the wrong way. I could use Foster fittings or schrader to foster adapters on my car and bike tires! Good idea, thank you!!!
Upvote 0
Now you got your noodle in the game! LOL
You can fill quite a few car and bike tires from your 4500psi SCBA tank....
But you can't fill anything at all airgun related with a tire chuck.
Upvote 0
Yeah...there's a reason that high pressure "race" bikes DON'T use the standard Schrader fitting.
They use the Presta valve. Better holds the higher pressure, especially at higher speeds. The valve is "locked" in place, so...it doesn't leak.
Mike
They use the Presta valve. Better holds the higher pressure, especially at higher speeds. The valve is "locked" in place, so...it doesn't leak.
Mike
Upvote 0
That's exactly what I was thinking. I can't imagine how much force it will take to keep the air chuck pushed down on that valve or even to open it.
Upvote 0
Upvote 0