X-Virus-Scanned: clean according to Sophos on Logan.com From: "Ernest Christley" Received: from nm5-vm6.access.bullet.mail.bf1.yahoo.com ([216.109.114.133] verified) by logan.com (CommuniGate Pro SMTP 6.0.10) with ESMTPS id 7238999 for flyrotary@lancaironline.net; Mon, 27 Oct 2014 17:50:21 -0400 Received-SPF: none receiver=logan.com; client-ip=216.109.114.133; envelope-from=echristley@att.net Received: from [66.196.81.155] by nm5.access.bullet.mail.bf1.yahoo.com with NNFMP; 27 Oct 2014 21:49:46 -0000 Received: from [66.196.81.148] by tm1.access.bullet.mail.bf1.yahoo.com with NNFMP; 27 Oct 2014 21:49:46 -0000 Received: from [127.0.0.1] by omp1024.access.mail.bf1.yahoo.com with NNFMP; 27 Oct 2014 21:49:46 -0000 X-Yahoo-Newman-Property: ymail-3 X-Yahoo-Newman-Id: 216669.95597.bm@omp1024.access.mail.bf1.yahoo.com Received: (qmail 29239 invoked by uid 60001); 27 Oct 2014 21:49:45 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=att.net; s=s1024; t=1414446585; bh=sYDVl1A0/+UkhxhSC1R3aIymsld8dHHaGIaLCTQrxA4=; h=Message-ID:Date:From:Reply-To:Subject:To:MIME-Version:Content-Type; b=DKmkvH/E3sM6xziHO9mlwIWtpMykltSlyRHO4IEcAH9sf4Kqhp2wRD9uUkz1TY/hFAvospLRBEmdjaEKI5uVvsX4dZBg6wxs+Z1u00tDGxCdw9UXqlO2sLyYJweYAC5kAaq4Uw6YrGt+SaIlq8DMVaS8aMTGiYnrESOFGsMD4QE= X-YMail-OSG: dwypjdQVM1nVOHB8GAWzK2nV1TrgHKE4QlgjCKIgqTszGY4 NtJtmEHh9ns6zcIKyZubfNRcXKPQhfuADsxfHuDiXelsjJMofTquKw.AEgbi ktNBQEf3G.2l7arle2cVaP2M6enPVVuAYf.GPXRYQWluynRa828gYO0M5PA0 qD_Jc0iMarx3SOsHS9FdHmr0TNHyUb9jpXb.FZJ.45c_UFjobryFYlZSjdRA vjE1HmAnjzmaXyGjIHXdmHZMmjalnJyVNcWbhWkbn.6KnAKcWJfCeRbhgLry oCGKS4HJHIaJ08Z4GWZgXO4WpSApNO5q.S5kfS5tIDfPbz.K.jW5qfA4PbJg azLz1_PhYXrbqymSHzkQJ._kWjB_YUbvIoMfBspkkJzStrZ0979TzPaYW40z tZNypC5.IrDsVwitIL_Ju766l6kd41s6U61sklgP8aBacuxmWndhIWYPvaB2 N00dEDdRlwtzPJ6SInvKrwdhE6shYUg2Cnpd9XqlW5xSP8b._xKdprdenTWS mqLUKPewtBMCOTPoK1_5vOZ2xKZsYMA-- Received: from [70.39.176.76] by web181604.mail.ne1.yahoo.com via HTTP; Mon, 27 Oct 2014 14:49:45 PDT X-Rocket-MIMEInfo: 002.001,SXMgYW55b25lIGZhbWlsaWFyIHdpdGggZWxlY3RyaWMgZnVlbCBzZWxlY3RvciB2YWx2ZXMgYXMgdXNlZCBpbiAKYXV0b21vdGl2ZSBhcHBsaWNhdGlvbnMuICBJJ20gdHJ5aW5nIHRvIGZpZ3VyZSBvdXQgaG93IHRoZXkgb3BlcmF0ZS4gIERvIHRoZXkgc2VsZWN0IG9uZSBsaW5lIHdoZW4gcG93ZXIgaXMgYXBwbGllZCB0byBhIHNvbGVub2lkIHR5cGUgcGx1bmdlciwgCmFuZCB0aGVuIHRoZSBvdGhlciBsaW5lIGlzIHNlbGVjdGVkIHdoZW4gcG93ZXIgaXNuJ3QgYXBwbGllZD8gIE9yIGRvZXMgYSBwdWxzZSABMAEBAQE- X-Mailer: YahooMailWebService/0.8.203.733 Message-ID: <1414446585.92242.YahooMailNeo@web181604.mail.ne1.yahoo.com> Date: Mon, 27 Oct 2014 14:49:45 -0700 Reply-To: Ernest Christley Subject: electric fuel selector valves To: "flyrotary@lancaironline.net" MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="2017413661-21985128-1414446585=:92242" --2017413661-21985128-1414446585=:92242 Content-Type: text/plain; charset=us-ascii Is anyone familiar with electric fuel selector valves as used in automotive applications. I'm trying to figure out how they operate. Do they select one line when power is applied to a solenoid type plunger, and then the other line is selected when power isn't applied? Or does a pulse of power switch them back and forth? If they maintain the currently selected tank when power is absent, it seems to me that this could remove fuel lines and a leak prone selector valve from a lot of cockpits. Furthermore, the 6 port models look like they could be plumbed easily to handle return lines. --2017413661-21985128-1414446585=:92242 Content-Type: text/html; charset=us-ascii

Is anyone familiar with electric fuel selector valves as used in automotive applications. I'm trying to figure out how they operate. Do they select one line when power is applied to a solenoid type plunger, and then the other line is selected when power isn't applied? Or does a pulse of power switch them back and forth? If they maintain the currently selected tank when power is absent, it seems to me that this could remove fuel lines and a leak prone selector valve from a lot of cockpits. Furthermore, the 6 port models look like they could be plumbed easily to handle return lines.

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