X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Mon, 07 Apr 2008 21:03:52 -0400 Message-ID: X-Original-Return-Path: Received: from fmailhost04.isp.att.net ([207.115.11.54] verified) by logan.com (CommuniGate Pro SMTP 5.2.1) with ESMTP id 2835663 for lml@lancaironline.net; Mon, 07 Apr 2008 09:53:59 -0400 Received-SPF: pass receiver=logan.com; client-ip=207.115.11.54; envelope-from=bbradburry@bellsouth.net Received: from arptk8ng400 (adsl-146-126-123.mco.bellsouth.net[72.146.126.123]) by isp.att.net (frfwmhc04) with SMTP id <20080407135320H0400a1n4re>; Mon, 7 Apr 2008 13:53:20 +0000 X-Originating-IP: [72.146.126.123] From: "Bill Bradburry" X-Original-To: "'Lancair Mailing List'" References: In-Reply-To: Subject: RE: [LML] IVP fresh air valve X-Original-Date: Mon, 7 Apr 2008 09:53:25 -0400 X-Original-Message-ID: <7344A9B89AB64A238D06051B3658A215@ARPTK8NG400> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_001B_01C89895.399208C0" X-Mailer: Microsoft Office Outlook 11 Thread-Index: AciYZcXvNZQGyrqoQpmvJ/E/WEtUEwAUMwoQ X-MimeOLE: Produced By Microsoft MimeOLE V6.0.6000.16545 This is a multi-part message in MIME format. ------=_NextPart_000_001B_01C89895.399208C0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Perihelion Design has a 3" slicer valve that would probably work. http://www.periheliondesign.com/moreproducts.htm Bill b _____ From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of Colyn Case on earthlink Sent: Monday, April 07, 2008 12:14 AM To: lml@lancaironline.net Subject: [LML] IVP fresh air valve I'm looking for a source for an air valve which can be opened or closed under ram air pressure and will withstand cabin pressurization when closed. Let me first explain my application: When I got the airplane, the previous owner had closed off the fresh air inlet on the vstab. So instead I ran some scat tubing from the cowl inlet to a valve on the firewall. The valve I have is a home brew device which is not working out very well. Mainly it has trouble overcoming ram pressure when I need to close it. Can anyone point me at a device or source for a device that might work in this application? thanks, Colyn ------=_NextPart_000_001B_01C89895.399208C0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Perihelion Design has a 3” slicer valve that would = probably work.

http://www.peri= heliondesign.com/moreproducts.htm

Bill b

From: Lancair Mailing List = [mailto:lml@lancaironline.net] On Behalf Of Colyn Case on = earthlink
Sent: Monday, April 07, = 2008 12:14 AM
To: = lml@lancaironline.net
Subject: [LML] IVP fresh = air valve

I'm looking for a source for an air valve which can = be opened or closed under ram air pressure and will withstand cabin = pressurization when closed.

Let me first explain my = application:

When I got the airplane, the previous owner had = closed off the fresh air inlet on the vstab. So instead I ran some scat = tubing from the cowl inlet to a valve on the firewall. The valve I have = is a home brew device which is not working out very well. Mainly = it has trouble overcoming ram pressure when I need to close = it.

Can anyone point me at a device or source for a = device that might work in this application?

thanks,

Colyn

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