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pfstelwagon(at)earthlink.
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 Posted: Wed Nov 11, 2015 7:13 pm Post subject: RE; Pneumatic Fittings |
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Try a tractor supply, many of the new tractors (foreign ones) are now metric. May or may not be the same.
Frank CJ6-A
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Ernie
Joined: 11 Jan 2006
Posts: 513
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| Posted: Wed Nov 11, 2015 7:23 pm Post subject: RE; Pneumatic Fittings |
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LOL,
On Wednesday, November 11, 2015, Frank Stelwagon <pfstelwagon(at)earthlink.net (pfstelwagon(at)earthlink.net)> wrote:
| Quote: | Try a tractor supply, many of the new tractors (foreign ones) are now metric. May or may not be the same.
Frank CJ6-A
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bwade154(at)yahoo.com
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| Posted: Thu Nov 12, 2015 6:49 am Post subject: RE; Pneumatic Fittings |
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Thought I would chime in on this one a couple years back my mechanic suggested new hose for my Yak 52 and I felt it would be wonderful to order up a complete set of hoses and started a quest to find someone with a complete set of hoses sitting on a shelf ready for delivery called the factory Aerostar no luck then started calling in the US everyone said send your hoses to me and I'll put new hose on your fittings, by the way if you do go this route Jill has your old fittings cad plated and they look new when finished where my hoses were done did not do the cad plating. Then I found a company that sold metric fittings so I grabbed a couple Yak 52 fitting's and presented the Yak 52 fitting's to this dealer and found that the metric threads are NOT standard and the matting surface is also not standard I think it was 5 or 10 degrees from standard. He did mention that fittings could be machined with a minimum order of 100 at $45.00 each and I think there are 15 to 20 different fittings.
Long story short sure would be nice to order up a complete set of hoses at a reasonable price but I found this unlikely send your hoses to Jill.
Dan I've had broken fittings repaired at the machine shop or call Doug
Bill Wade Yak 52 N4450Y
From: Frank Stelwagon <pfstelwagon(at)earthlink.net>
To: yak-list(at)matronics.com
Sent: Wednesday, November 11, 2015 10:09 PM
Subject: RE; Pneumatic Fittings
Try a tractor supply, many of the new tractors (foreign ones) are now metric. May or may not be the same.
Frank CJ6-A
| | - The Matronics Yak-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Yak-List |
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wlannon(at)shaw.ca
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| Posted: Thu Nov 12, 2015 8:03 pm Post subject: RE; Pneumatic Fittings |
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Bill;
I have no direct experience with the Yak 52 tube fittings but am near certain they are identical to the CJ. Someone please correct me if that is not so.
The following is based on that assumption.
The flare angle is the aviation standard of 37 degs. which is also true of all AN and MS hardware for “flare type” tube fittings (there is also an MS compression type).
If tube/pipe (rather than tube/tube) the pipe thread is universal. On the small 6 mm tube fitting it is 1/8” pipe thread. The same as AN, MS and SAE fittings.
The tube end thread is metric but, like SAE thread, there are coarse, fine and very fine variants.
The Chinese utilized Russian thread standards (why I assume the CJ and Yak are the same in this area). But I believe that Russia (and Eastern Europe?) used a different thread pitch for this purpose than Western Europe.
It is possible to mix and match fittings, tubing and “B” nuts (with varying degree of complexity) utilizing AN and Chinese/Russian in the 6 and 8 mm tube sizes. Not too likely in the 10 and 14 mm sizes.
It is quite possible that some Yak/CJ owners have used SAE fittings rather than AN standard assuming they are physically the same due same thread on both ends. Where SAE differs is the tube flare. It is 45 degs. (90 degs in SAE parlance) NOT the aviation standard of 37 degs.
Hope that helps a bit.
Walt
From: bill wade (bwade154(at)yahoo.com)
Sent: Thursday, November 12, 2015 6:46 AM
To: yak-list(at)matronics.com (yak-list(at)matronics.com)
Subject: Re: RE; Pneumatic Fittings
Thought I would chime in on this one a couple years back my mechanic suggested new hose for my Yak 52 and I felt it would be wonderful to order up a complete set of hoses and started a quest to find someone with a complete set of hoses sitting on a shelf ready for delivery called the factory Aerostar no luck then started calling in the US everyone said send your hoses to me and I'll put new hose on your fittings, by the way if you do go this route Jill has your old fittings cad plated and they look new when finished where my hoses were done did not do the cad plating. Then I found a company that sold metric fittings so I grabbed a couple Yak 52 fitting's and presented the Yak 52 fitting's to this dealer and found that the metric threads are NOT standard and the matting surface is also not standard I think it was 5 or 10 degrees from standard. He did mention that fittings could be machined with a minimum order of 100 at $45.00 each and I think there are 15 to 20 different fittings.
Long story short sure would be nice to order up a complete set of hoses at a reasonable price but I found this unlikely send your hoses to Jill.
Dan I've had broken fittings repaired at the machine shop or call Doug
Bill Wade Yak 52 N4450Y
From: Frank Stelwagon <pfstelwagon(at)earthlink.net>
To: yak-list(at)matronics.com
Sent: Wednesday, November 11, 2015 10:09 PM
Subject: RE; Pneumatic Fittings
Try a tractor supply, many of the new tractors (foreign ones) are now metric. May or may not be the same.
Frank CJ6-A
| | - The Matronics Yak-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Yak-List |
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GeorgeCoy
Joined: 02 Dec 2010
Posts: 310
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| Posted: Fri Nov 13, 2015 6:06 am Post subject: RE; Pneumatic Fittings |
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Walter,
I recently posted the Yak hose listing with all the fitting sizes. The Russian aviation fittings are not the same AN or standard metric. The Russian flair is 40 deg., but close enough to 37 deg to make it work in some cases. We offer a complete set of fittings for the M14P that go to western AN fittings. We have in the past cut the Russian threaded part off and welded on AN threaded parts of the fittings to make a complete conversion. We also have new Russian hose materials and offer a service where your hose sets and we replace the rubber.
George Coy .
From: owner-yak-list-server(at)matronics.com [mailto:owner-yak-list-server(at)matronics.com] On Behalf Of Walter Lannon
Sent: Thursday, November 12, 2015 11:00 PM
To: yak-list(at)matronics.com
Subject: Re: RE; Pneumatic Fittings
Bill;
I have no direct experience with the Yak 52 tube fittings but am near certain they are identical to the CJ. Someone please correct me if that is not so.
The following is based on that assumption.
The flare angle is the aviation standard of 37 degs. which is also true of all AN and MS hardware for “flare type” tube fittings (there is also an MS compression type).
If tube/pipe (rather than tube/tube) the pipe thread is universal. On the small 6 mm tube fitting it is 1/8” pipe thread. The same as AN, MS and SAE fittings.
The tube end thread is metric but, like SAE thread, there are coarse, fine and very fine variants.
The Chinese utilized Russian thread standards (why I assume the CJ and Yak are the same in this area). But I believe that Russia (and Eastern Europe?) used a different thread pitch for this purpose than Western Europe.
It is possible to mix and match fittings, tubing and “B” nuts (with varying degree of complexity) utilizing AN and Chinese/Russian in the 6 and 8 mm tube sizes. Not too likely in the
10 and 14 mm sizes.
It is quite possible that some Yak/CJ owners have used SAE fittings rather than AN standard assuming they are physically the same due same thread on both ends. Where SAE differs is the tube flare. It is 45 degs. (90 degs in SAE parlance) NOT the aviation standard of 37 degs.
Hope that helps a bit.
Walt
From: bill wade (bwade154(at)yahoo.com)
Sent: Thursday, November 12, 2015 6:46 AM
To: yak-list(at)matronics.com (yak-list(at)matronics.com)
Subject: Re: RE; Pneumatic Fittings
Thought I would chime in on this one a couple years back my mechanic suggested new hose for my Yak 52 and I felt it would be wonderful to order up a complete set of hoses and started a quest to find someone with a complete set of hoses sitting on a shelf ready for delivery called the factory Aerostar no luck then started calling in the US everyone said send your hoses to me and I'll put new hose on your fittings, by the way if you do go this route Jill has your old fittings cad plated and they look new when finished where my hoses were done did not do the cad plating. Then I found a company that sold metric fittings so I grabbed a couple Yak 52 fitting's and presented the Yak 52 fitting's to this dealer and found that the metric threads are NOT standard and the matting surface is also not standard I think it was 5 or 10 degrees from standard. He did mention that fittings could be machined with a minimum order of 100 at $45.00 each and I think there are 15 to 20 different fittings.
Long story short sure would be nice to order up a complete set of hoses at a reasonable price but I found this unlikely send your hoses to Jill.
Dan I've had broken fittings repaired at the machine shop or call Doug
Bill Wade Yak 52 N4450Y
From: Frank Stelwagon <pfstelwagon(at)earthlink.net (pfstelwagon(at)earthlink.net)>
To: yak-list(at)matronics.com (yak-list(at)matronics.com)
Sent: Wednesday, November 11, 2015 10:09 PM
Subject: RE; Pneumatic Fittings
Try a tractor supply, many of the new tractors (foreign ones) are now metric. May or may not be the same.
Frank CJ6-A
| | - The Matronics Yak-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Yak-List |
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wlannon(at)shaw.ca
Guest
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| Posted: Fri Nov 13, 2015 8:57 pm Post subject: RE; Pneumatic Fittings |
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George;
Maybe you should read my post again. I (clearly, I thought) described the differences between AN and Russian/Chinese tube fittings which in fact is only the thread attaching the “B” nut.
I did indicate that I am not specifically familiar with the Yak 52 which was the aircraft of concern for the original poster.
However I can very positively assure you that the Russian Standard tube flare angle for Pneumatic, Fuel and Oil system tubing and fittings is exactly 37.5 degs. (included angle of 75 degs.) and this is precisely the same as the Chinese and Polish aircraft standard. It is also precisely the same flare angle as the AN standard.
(I dropped the .5 for simplicity in my post)
Perhaps you are comparing your fittings to hardware store (non-aviation) SAE fittings which are 45 (90) degs.
Suggest you do an actual measurement of the angle for your own enlightenment.
Walt
From: George S. Coy (george.coy(at)gmail.com)
Sent: Friday, November 13, 2015 6:03 AM
To: yak-list(at)matronics.com (yak-list(at)matronics.com)
Subject: RE: RE; Pneumatic Fittings
Walter,
I recently posted the Yak hose listing with all the fitting sizes. The Russian aviation fittings are not the same AN or standard metric. The Russian flair is 40 deg., but close enough to 37 deg to make it work in some cases. We offer a complete set of fittings for the M14P that go to western AN fittings. We have in the past cut the Russian threaded part off and welded on AN threaded parts of the fittings to make a complete conversion. We also have new Russian hose materials and offer a service where your hose sets and we replace the rubber.
George Coy .
From: owner-yak-list-server(at)matronics.com [mailto:owner-yak-list-server(at)matronics.com] On Behalf Of Walter Lannon
Sent: Thursday, November 12, 2015 11:00 PM
To: yak-list(at)matronics.com
Subject: Re: Yak-List: RE; Pneumatic Fittings
Bill;
I have no direct experience with the Yak 52 tube fittings but am near certain they are identical to the CJ. Someone please correct me if that is not so.
The following is based on that assumption.
The flare angle is the aviation standard of 37 degs. which is also true of all AN and MS hardware for “flare type” tube fittings (there is also an MS compression type).
If tube/pipe (rather than tube/tube) the pipe thread is universal. On the small 6 mm tube fitting it is 1/8” pipe thread. The same as AN, MS and SAE fittings.
The tube end thread is metric but, like SAE thread, there are coarse, fine and very fine variants.
The Chinese utilized Russian thread standards (why I assume the CJ and Yak are the same in this area). But I believe that Russia (and Eastern Europe?) used a different thread pitch for this purpose than Western Europe.
It is possible to mix and match fittings, tubing and “B” nuts (with varying degree of complexity) utilizing AN and Chinese/Russian in the 6 and 8 mm tube sizes. Not too likely in the
10 and 14 mm sizes.
It is quite possible that some Yak/CJ owners have used SAE fittings rather than AN standard assuming they are physically the same due same thread on both ends. Where SAE differs is the tube flare. It is 45 degs. (90 degs in SAE parlance) NOT the aviation standard of 37 degs.
Hope that helps a bit.
Walt
From: bill wade (bwade154(at)yahoo.com)
Sent: Thursday, November 12, 2015 6:46 AM
To: yak-list(at)matronics.com (yak-list(at)matronics.com)
Subject: Re: RE; Pneumatic Fittings
Thought I would chime in on this one a couple years back my mechanic suggested new hose for my Yak 52 and I felt it would be wonderful to order up a complete set of hoses and started a quest to find someone with a complete set of hoses sitting on a shelf ready for delivery called the factory Aerostar no luck then started calling in the US everyone said send your hoses to me and I'll put new hose on your fittings, by the way if you do go this route Jill has your old fittings cad plated and they look new when finished where my hoses were done did not do the cad plating. Then I found a company that sold metric fittings so I grabbed a couple Yak 52 fitting's and presented the Yak 52 fitting's to this dealer and found that the metric threads are NOT standard and the matting surface is also not standard I think it was 5 or 10 degrees from standard. He did mention that fittings could be machined with a minimum order of 100 at $45.00 each and I think there are 15 to 20 different fittings.
Long story short sure would be nice to order up a complete set of hoses at a reasonable price but I found this unlikely send your hoses to Jill.
Dan I've had broken fittings repaired at the machine shop or call Doug
Bill Wade Yak 52 N4450Y
From: Frank Stelwagon <pfstelwagon(at)earthlink.net (pfstelwagon(at)earthlink.net)>
To: yak-list(at)matronics.com (yak-list(at)matronics.com)
Sent: Wednesday, November 11, 2015 10:09 PM
Subject: RE; Pneumatic Fittings
Try a tractor supply, many of the new tractors (foreign ones) are now metric. May or may not be the same.
Frank CJ6-A
| | - The Matronics Yak-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Yak-List |
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