PDA

View Full Version : Looking for schrader fittings (female)



beanbag
08-23-2010, 02:51 PM
I am looking for female schrader fittings which screw onto a schrader valve on one end, and have some kind of a fitting on the other... I guess any kind is ok except for crimp on. I am failing to find these, although they exist on shock pumps for bicycles.

Jim Caudill
08-23-2010, 03:21 PM
You might look inot aircraft supply locations

winchman
08-23-2010, 05:05 PM
The only place I've seen those is on a bicycle tire pump. So, here's where you can get one:

http://www.diamondu.com/accessories.htm

It's their 9001 or 9002 depending on the barb size, about 2/3 way down the page.

ahidley
08-23-2010, 06:34 PM
mcmastercarr.com

beanbag
08-23-2010, 09:15 PM
mcmastercarr.com

What's the part number?

rockrat
08-23-2010, 11:41 PM
Automotive stores have a conversion fitting for fuel mechanics pressure gages. They have one size that will fit a Schrader valve that you would find on a tire and has larger threads on the other end for a gage. I have one that cam with a kit from Actron out of Cleveland.

I'll see if I can find a link.
Otherwise, you might be better off to make one.
rock~

rockrat
08-23-2010, 11:50 PM
Ok, here is some info. Kit number CP7818 gets you everything in the photo below. Its called the Ford fuel line adapter. You want the little brass part shown separate here.

http://contentinfo.autozone.com/znetcs/product-info/en/US/acm/CP7818/image/4/

Call customer service and tell them you lost that part and see what they want for it.


Customer Service
For product information or customer service
please call 1-800-ACTRON-7 (1-800-228-7667)
Monday through Friday, between 8:30 a.m. and
4:30 p.m. Eastern time or fax anytime at
(216) 651-2388.
Actron can also be reached by Email or on the
Internet.
Email address: sunpro@actron.com
Internet home page: http://www.actron.com

Here is the pdf where that info came from.
Actron pressure gage kit (Customer Service For product information or customer service please call 1-800-ACTRON-7 (1-800-228-7667) Monday through Friday, between 8:30 a.m. and 4:30 p.m. Eastern time or fax anytime at (216) 651-2388. Actron can also be reached by Email or on the Internet. Email address: sunpro@actron.com Internet home page: http://www.actron.com)

And, just because I had to buy one today, you can get a part with a Schrader valve on one end and a 1/8 npt on the other end at Lowes in the well pump section for about $3.00. Not that it had anything to do with your post, but just cause I found one.

rock~

Hogridnfool
08-24-2010, 01:15 AM
Is this what you are looking for? http://www.thefind.com/garden/info-schrader-couplers

Jim Caudill
08-24-2010, 01:17 AM
http://www.aircraftspruce.com/catalog/lgpages/gooseneck.php

fencepost
08-24-2010, 06:56 AM
Jim,

The spruce link is for aircraft struts, it does not have the little button in middle to depress the little schrader valve inside he stem. I have one of those, handy for some stuff, worthless for airing tires and such.

Peter.
08-24-2010, 08:42 AM
You need the hose off a hand-pump for pumping up mountain bike tyres.

winchman
08-24-2010, 09:09 AM
The Cessna nose strut can be charged from a regular air hose in an emergency, so it must have a regular Schrader valve. I'd expect the Aircraft Spruce fitting to have the button to depress the valve plunger, but it's been almost ten years since I last looked at a strut closely.

Thruthefence
08-24-2010, 02:53 PM
Dill makes the one I use for aircraft. Got a little t-handle to depress the valve core. I think you can buy just the adapter air adapter itself (without the gage & hose)at hose shops. Seems like I saw some at "bearing & service" a local vendor.

http://www.dillaircontrols.com/files/Hydraulic%20Shock%20Srut%20Gauges.pdf

be sure & get some extra copper crush gaskets while your at it. They will wear out, and I've never found an 'across the counter' source.

fencepost
08-24-2010, 06:41 PM
Winchman, you 're are right about charging from an air hose - in an emergency, I prefer nitrogen when available. The schrader coupling shown earlier (screw on) have does not have the plunger button in it, the high pressure of the nitrogen bottle will over power the spring in the check valve allowing the gas to enter. If you use shop air you can use a standard tire chuck to inflate the strut, the little plunger will depress the check valve allowing the shop air to enter. Shop air and the screw on coupling as shown earlier doesn't work well unless you have a lot of pressure - more than most shop compressors can put out safely.

At least that is my experience.

Thruthefence
08-24-2010, 10:37 PM
eg, SE Cessnas; And if you are using a ordinary chuck, it helps to have some push down on the tail a bit for you, takes a bit less air pressure this way, and you avoid the problem of not getting the chuck exactly square on the shrader valve, & releasing hydraulic fluid.

black powder
08-25-2010, 12:44 AM
Look at a Parker accumulator charging adaptor.They have a adaptor that fits a shrader valve on accumulators to recharge with nitrogen .Sorry can 't findthe right link to it .

Cheeseking
08-25-2010, 12:48 AM
What's the application??

beanbag
08-25-2010, 07:07 AM
I have a compressed nitrogen tank with a regulator on it. I want to use it for charging the nitrogen chamber in shocks (150+ psi) and also for inflating bicycle tires quickly. So yes, I need the little nub in the center of the screw on connector to depress the pin.

All I want is the [gosh darn] adapter that is screw-on on one end, and lets say either threaded or pipe thread on the other. It'd better cost less than $5. I don't want to buy a whole [gosh darn] hose assembly or anything.

rockrat
08-25-2010, 08:52 AM
I'm curious if you tried the Actron number I posted earlier? They have provided me with good customer service in the past. I have called the customer support line before to get other replacement parts, just not the one I noted.

Also, the part I noted has the plunger and has screw threads (jis?) for you to hook up to and it has o-rings for a good seal. As for the cost, I dont know because I have never needed a replacement. Unless the physical size is not going to work for you I think it would fit the bill per your requests.

rock~

HAP
08-25-2010, 04:12 PM
I modified the goosneck style fitting with a copper washer which i soldered a small piece of brass on it to actuate the valve. I'll try to post a picture of it later.

HAP

Tom S
08-25-2010, 05:13 PM
Do you have a local refrigeration or AC supply house? Or even a well-stocked tradesman? You should be able to find something there quite easily.

-Tom

beanbag
08-25-2010, 06:50 PM
There was a Royal Brass somewhat near me that claims to have such an adapter and also claims to be able to make me a custom hose assembly from it.

HAP
08-25-2010, 09:15 PM
I modified the goosneck style fitting with a copper washer which i soldered a small piece of brass on it to actuate the valve. I'll try to post a picture of it later.

HAP

Here is a shot of what I made. The macro is not that good on my camera...
The green thing is a worn o ring.

http://i890.photobucket.com/albums/ac106/HAPSHOP/Shop%20Stuff/DSCN5137.jpg

Regadrs,
HAP

archibald tuttle
08-20-2013, 10:09 AM
Here is a shot of what I made. The macro is not that good on my camera...
The green thing is a worn o ring.

http://i890.photobucket.com/albums/ac106/HAPSHOP/Shop%20Stuff/DSCN5137.jpg

Regadrs,
HAP

that is a cute workaround but I am on precisely the same sojourn to find one of these fittings and I can't believe how hard it is. Believe it or not, I want them for their original purpose - i.e. inflating tires.

I simply can't find a good schrader connector that is reliable, doesn't leak much air around the edges after a little bit of field abuse. All the small 12V inflators have the little flip tighten style on which the rubber can wear out and fail to grip and the center post for opening the schrader valve can break.

The typical air chucks for tire inflating don't always reliably grip the schrader male, if they even have a grip feature, and or the positioning of the valve makes it difficult to employ.

Just want a simply spin on female schrader fitting that has a center post to depress the valve in the male schrader. If the spinning end has a long barrel making it easier to turn by hand at a distance of a couple inches back, all the better. Needs to be straight oriented in order to reach in between dual wheels, etc.

The one requirement I don't have is that this fitting be an adapter to another thread. it would be fine with me if the fitting were set up to crimp into a hose, 3/16 or 1/4" on a guess but I'm negotiable.

Manufacturers of bike pumps and tire inflators must go through these things by the millions but in this day of the internet I have been unable to find anyone offering to sell that fitting.

I'm also open to buying short hoses with such a fitting already crimped on and either an open end, or anything else crimped on the other end - I can always cut and recrimp if I can't adapt.

But Viair, which does have such hoses on their compressors, only sells them crimped onto a mini-compressor head. The only hose they sell separately has the old flip style.

Part of the problem is limiting the searching. Most schrader or female schrader searches end up bringing up adapters from the schrader to the alternative style bike tire inflating system.

And discussions on forums like this one that end up recommending the adapter for the fuel rail testing that has no mechanism for opening the schrader.

and i get thousands of hits for that stuff so maybe there really is a relevant listing on the internet somewhere and I just haven't been able to surface it.


Any further ideas, hints, kvetches or commiseration appreciated.

Brian

ikdor
08-20-2013, 11:20 AM
You could browse through the "complete catalogue" on this page:
http://www.alligator-ventilfabrik.de/index.php?downloadcenter_catalogue
for some ideas.

Igor

mooney1el
08-20-2013, 01:46 PM
This is what I use in similar applications. I actually have one of these adapted to an old AC manifold, one side connected to a vacuum pump and the other side connected to a nitrogen source. We suck the "air" out of our race tires then refill with nitrogen. I like this because we can screw the adapter onto the valve stem and solidly depress the core.

http://www.skygeek.com/schrader-2755-high-pressure-inflating-connection.html

SkyGeek also has the Schrader 556 which has different threads, but is essentially the same as above.

http://www.skygeek.com/ats-556.html

archibald tuttle
08-22-2013, 08:42 AM
sorry, i thought i already thanked you guys for the replies. checked the alligator which has the closest to what I'm after. their female chuck has little thumb wings for easy threading on. might be a little obtrusive for some narrow entries through hubcaps and the like but great little fitting.

not clear form the catalogue if I can order directly from them or who distributes in the US.

I sent a query form to their contact link so we'll see.

the skygeek catalogue has me wondering what struts inflate on an airplane?

still on the hunt for a one with a longer barrell where the thumb screw is back several inches from the front of the schrader so you can reach into narrow spaces . I've seen a number of these already installed on hoses for various compressors. Viair seems to have a longer knurled barrel although it never widens out to give any more grip but the knurling is obviously meant to help. looks to be about 2" long. they weren't much help on obtaining that part although they sent me to a custom installer/distributor. I guess their systems are often installed for onboard air shocks or air seats and the like. I'm going to try that installer today.

I have also seen a nice long schrader screw on chuck maybe 3 or 4" which widens at the back but I never figured out the manufacturer.

DiamondU, linked earlier in the thread has some interesting possibilities including a barb fitting straight chuck and 1/4" to schrader adapters but I can't tell from the pictures if they are meant to be push on or thread on and the person I got on the phone had a fairly strong accent and I couldn't understand what she was telling me and couldn't seem to get to anyone who does their technical questions or product design. maybe I'll try an email.

thanks again, keep those cards and letters coming.

Doozer
08-22-2013, 08:56 AM
Like this???
http://yourtireshopsupply.com/image/897/539/700/700/n1200-european-style-clip-on-air-chuck-vac12.jpg

--Doozer

Paul Alciatore
08-22-2013, 03:18 PM
I have purchased a ton of air fittings over many years and never heard of "Schrader" fittings. So I have to ask, just what are we talking about? Does Schrader have a propriety quick disconnect fitting? Or just what are we talking about that is unique to Schrader?

ikdor
08-22-2013, 03:47 PM
A Schrader valve is the thing on your car tire.
Igor

larry_g
08-28-2013, 02:15 AM
Have you tried Clippard QD fittings. They are a schrader valve but I'm not 100% sure they are a tire valve. http://www.clippard.com/products/fitting-quick-connect I'm referring to the fitting on the top of the page.

lg
no neat sig line