X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [66.219.56.245] (HELO mail.qnsi.net) by logan.com (CommuniGate Pro SMTP 6.0.9e) with ESMTP id 6817115 for flyrotary@lancaironline.net; Mon, 07 Apr 2014 07:38:18 -0400 Received-SPF: none receiver=logan.com; client-ip=66.219.56.245; envelope-from=bhughes@qnsi.net Received: from 10.0.0.5 ([10.0.0.5]) by qnsi-mail.qnsi.net ([10.0.0.5]) with Microsoft Exchange Server HTTP-DAV ; Mon, 7 Apr 2014 11:37:43 +0000 Content-Type: multipart/alternative; boundary="Apple-Mail-A20341D8-8BB1-45FC-BBFF-1C8C2E4D62EF"; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Subject: Re: [FlyRotary] AN 10 PTFE hose and fittings References: From: "Bobby J. Hughes" In-Reply-To: thread-topic: [FlyRotary] AN 10 PTFE hose and fittings thread-index: Ac9SVcpLBvSALZXMT9yFbQI0RnkvkA== Message-ID: <7355569B-C821-4E98-BA3A-00DFFFADC6C1@qnsi.net> Date: Mon, 7 Apr 2014 06:37:43 -0500 To: "Rotary motors in aircraft" MIME-Version: 1.0 (1.0) --Apple-Mail-A20341D8-8BB1-45FC-BBFF-1C8C2E4D62EF Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: base64 U3RldmUNCg0KU2lsaWNvbmVpbnRha2VzLmNvbSBhcHBlYXJzIHRvIHNlbGwgYSBkaWZmZXJlbnQg Zml0dGluZyB0aGF0IGluY2x1ZGVzIGEgZmVycnVsZSBmb3IgUFRGRSBob3NlLiAgTXkgUFRGRSBo b3NlIGFuZCBmaXR0aW5ncyB3ZXJlIHB1cmNoYXNlZCBmcm9tIFBlZ2FzdXMgYW5kIHRoZSBmaXR0 aW5ncyBhcmUgYSB0aGlyZCB0eXBlLiBUaGV5IGluc3RhbGxlZCBlYXNpbHkgYnV0IHdlcmUgbW9y ZSBleHBlbnNpdmUuIA0KDQpCb2JieQ0KDQpTZW50IGZyb20gbXkgaVBhZA0KDQo+IE9uIEFwciA3 LCAyMDE0LCBhdCAxOjEzIEFNLCAiU3RldmVuIFcuIEJvZXNlIiA8U0JvZXNlQHV3eW8uZWR1PiB3 cm90ZToNCj4gDQo+IEF0IHRoZSBlbmQgb2YgTm92ZW1iZXIgbGFzdCB5ZWFyLCBJIHJlc3BvbmRl ZCB0byBhbiBpbnF1aXJ5IGZyb20gQ2hhcmxpZSBjb25jZXJuaW5nIEFOIFBURkUgaG9zZSBhbmQg Zml0dGluZ3MgZnJvbSBzaWxpY29uZWludGFrZXMuY29tLiAgSSBzdGF0ZWQgdGhhdCBteSBleHBl cmllbmNlIHdpdGggdGhlaXIgcHJvZHVjdHMgYW5kIHNlcnZpY2Ugd2FzIHBvc2l0aXZlIGJ1dCB0 aGF0IEkgaGFkIG5vdCBzcGVjaWZpY2FsbHkgdHJpZWQgdGhlaXIgaG9zZSBhbmQgZml0dGluZ3Mu DQo+IA0KPiAgDQo+IA0KPiBJIG5vdyBoYXZlIHNvbWUgZXhwZXJpZW5jZSB3aXRoIHRoZWlyIEFO MTAgUFRGRSBob3NlIGFuZCBmaXR0aW5ncyBhcyBzaG93biBpbiB0aGUgYXR0YWNoZWQgcGhvdG8u ICBUaGUgZml0dGluZyBpcyBtYW51ZmFjdHVyZWQgYnkgcGxhY2luZyB0aGUgYmx1ZSBudXQgb24g dGhlIHJlZCBmaXR0aW5nIGFuZCBpbnNlcnRpbmcgdGhlIGhlYXZ5IHdpcmUgdGhyb3VnaCB0aGUg aG9sZSBpbiB0aGUgbnV0LiAgVGhlIHdpcmUgY2FwdHVyZXMgdGhlIG51dCBhbmQgYWxsb3dzIGl0 IHRvIHJvdGF0ZSByZWxhdGl2ZSB0byB0aGUgZml0dGluZy4gIFdoZW4gdGhlIHRhcGVyZWQgcGFy dCBvZiB0aGUgZml0dGluZyBmaXJzdCBjb250YWN0cyB0aGUgbWFsZSBlbmQgdG8gd2hpY2ggaXQg aXMgYmVpbmcgY29ubmVjdGVkLCB0aGUgZml0dGluZyBjb2NrcyBzaWRld2F5cyBpbiB0aGUgbnV0 IGFzIHNlZW4gaW4gdGhlIGxlZnQgc2lkZSBvZiB0aGUgcGhvdG8uICBJZiB0aGUgbnV0IGlzIHRp Z2h0ZW5lZCBmdXJ0aGVyLCB0aGUgZml0dGluZyByb3RhdGVzIHdpdGggdGhlIG51dCBhbmQgdGh1 cyBtYWludGFpbmluZyBwcm9wZXIgYWxpZ25tZW50IG9mIHRoZSBhbmdsZWQgZml0dGluZyBpcyBu ZWFybHkgaW1wb3NzaWJsZS4gIElmIHRoZSBmaXR0aW5nIGlzIHJlc3RyYWluZWQgZnJvbSByb3Rh dGluZywgdGhlIHdpcmUgaW5zaWRlIHRoZSBudXQgZGlncyBpbnRvIHRoZSBmaXR0aW5nIGFuZCB0 aGVuIGNvbWVzIG91dCBvZiB0aGUgYmFjayBvZiB0aGUgbnV0IHdpdGggdGhlIHJlc3VsdHMgYXMg c2VlbiBpbiB0aGUgcmlnaHQgc2lkZSBvZiB0aGUgcGhvdG8uICBJIGhhdmUgdXNlZCBmaXR0aW5n cyBvZiBzaW1pbGFyIGRlc2lnbiBmcm9tIG90aGVyIHZlbmRvcnMgc3VjY2Vzc2Z1bGx5LiAgQXBw YXJlbnRseSB0aGUgZGltZW5zaW9ucyBvZiB0aGUgd2lyZSBvciB0aGUgZ3Jvb3ZlcyBpbiB0aGUg c2lsaWNvbmVpbnRha2VzIG51dCBhbmQvb3IgZml0dGluZyBhcmUgbm90IGNvcnJlY3QsIG9yIHRo ZSBhbHVtaW51bSBhbGxveSB1c2VkIGlzIHRvbyBzb2Z0LCBvciB0aGVyZSBtYXkgYmUgc29tZSBv dGhlciBkZWZlY3QuICBJIHRyaWVkIGluc3RhbGxpbmcgdHdvIDkwIGRlZ3JlZSBmaXR0aW5ncyBh bmQgdHdvIDQ1IGRlZ3JlZSBmaXR0aW5ncyBhbmQgYWxsIG9mIHRoZW0gZmFpbGVkLg0KPiANCj4g IA0KPiANCj4gU3RldmUgQm9lc2UNCj4gUlY2QSwgMTk4NiAxM0IgTkEsIFJEMUEsIEVDMg0KPiAg DQo+IA0KPiAgIA0KPiANCj4gIA0KPiANCj4gIA0KPiANCj4gPEFOMTAgZml0dGluZy5qcGc+DQo+ IC0tDQo+IEhvbWVwYWdlOiAgaHR0cDovL3d3dy5mbHlyb3RhcnkuY29tLw0KPiBBcmNoaXZlIGFu ZCBVblN1YjogICBodHRwOi8vbWFpbC5sYW5jYWlyb25saW5lLm5ldDo4MS9saXN0cy9mbHlyb3Rh cnkvTGlzdC5odG1sDQo= --Apple-Mail-A20341D8-8BB1-45FC-BBFF-1C8C2E4D62EF Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 7bit
Steve

Siliconeintakes.com appears to sell a different fitting that includes a ferrule for PTFE hose.  My PTFE hose and fittings were purchased from Pegasus and the fittings are a third type. They installed easily but were more expensive. 

Bobby

Sent from my iPad

On Apr 7, 2014, at 1:13 AM, "Steven W. Boese" <SBoese@uwyo.edu> wrote:

At the end of November last year, I responded to an inquiry from Charlie concerning AN PTFE hose and fittings from siliconeintakes.com.  I stated that my experience with their products and service was positive but that I had not specifically tried their hose and fittings.

 

I now have some experience with their AN10 PTFE hose and fittings as shown in the attached photo.  The fitting is manufactured by placing the blue nut on the red fitting and inserting the heavy wire through the hole in the nut.  The wire captures the nut and allows it to rotate relative to the fitting.  When the tapered part of the fitting first contacts the male end to which it is being connected, the fitting cocks sideways in the nut as seen in the left side of the photo.  If the nut is tightened further, the fitting rotates with the nut and thus maintaining proper alignment of the angled fitting is nearly impossible.  If the fitting is restrained from rotating, the wire inside the nut digs into the fitting and then comes out of the back of the nut with the results as seen in the right side of the photo.  I have used fittings of similar design from other vendors successfully.  Apparently the dimensions of the wire or the grooves in the siliconeintakes nut and/or fitting are not correct, or the aluminum alloy used is too soft, or there may be some other defect.  I tried installing two 90 degree fittings and two 45 degree fittings and all of them failed.

 

Steve Boese
RV6A, 1986 13B NA, RD1A, EC2

 

  

 

 

<AN10 fitting.jpg>
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