X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mail-gh0-f180.google.com ([209.85.160.180] verified) by logan.com (CommuniGate Pro SMTP 6.0c2) with ESMTPS id 5837069 for flyrotary@lancaironline.net; Mon, 22 Oct 2012 13:40:50 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.160.180; envelope-from=ceengland7@gmail.com Received: by mail-gh0-f180.google.com with SMTP id f19so496265ghb.25 for ; Mon, 22 Oct 2012 10:40:13 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=message-id:date:from:user-agent:mime-version:to:subject :content-type; bh=7e5Q+KQibzM6j545Qc916JV2eYc93IH57kv0y6wkqwA=; b=XZzck32ihOk42cUdR/vVV5JdG42tcAZvGSTuG7m83yw8E/j//2T4CZOeMXT7Tu+rdM iSu9J+eI0QEww9qFDBa9vPeC0bTqn3L6uJRkZqkia7EswmkFmhWZKyM/GWdPk5xEmH6V WB0ncFRf+0AQGJxxJbgasAAOuj4eNrk6SUU0kDDcCDHKR7R1L680plma2IhhayzuKXlQ ochiK1lXFSAuM9tyToUmXMOCQsHDylxOIzkz8+CXW7U9Bw70oahM6Go1PvLf9QHjcb3e ikfivync5mljJtpYKqRgdhVXh01jofXecpcN2DQzjPt5jsll11GM4mquiLyf8KfbQ2fU +uJQ== Received: by 10.101.166.29 with SMTP id t29mr2726386ano.86.1350927613703; Mon, 22 Oct 2012 10:40:13 -0700 (PDT) Return-Path: Received: from [192.168.10.30] (adsl-98-95-189-156.jan.bellsouth.net. [98.95.189.156]) by mx.google.com with ESMTPS id t46sm9544160yhi.3.2012.10.22.10.40.12 (version=SSLv3 cipher=OTHER); Mon, 22 Oct 2012 10:40:13 -0700 (PDT) Message-ID: <508584FB.5030602@gmail.com> Date: Mon, 22 Oct 2012 12:40:11 -0500 From: Charlie England User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:16.0) Gecko/20121011 Thunderbird/16.0.1 MIME-Version: 1.0 To: flyrotary Subject: flow path in conventional radiator Content-Type: multipart/alternative; boundary="------------090402090603000208010900" This is a multi-part message in MIME format. --------------090402090603000208010900 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit I've been doing research on radiators, & my 1st 'experiment' will be a conventionally configured radiator (downflowdesign) with inlet & pressure cap on top. In reading about issues with conventional radiators, a common complaint is pressure venting due to the water pump + system pressure exceeding the cap's rating. Crossflow types like the Sirocco are supposed to avoid this because the cap is at the mid-point in the flow through the rad, which drops some of the pressure seen by the cap. Here's my question: Is there any reason a conventional rad can't be fed from the bottom, instead of the top? This would achieve similar effect as the crossflow cap location (all the way to the end of the flow path) & any air could be ventedusing the existing fittings. I'm also considering the removal of the spring loaded seal, & moving the pressure cap function to a separate swirlcan. By doing this, the existing over-pressure port could function as the air removal port in the top tank of the radiator. What am I missing? Thanks, Charlie --------------090402090603000208010900 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit I've been doing research on radiators, & my 1st 'experiment' will be a conventionally configured radiator (downflow design) with inlet & pressure cap on top. In reading about issues with conventional radiators, a common complaint is pressure venting due to the water pump + system pressure exceeding the cap's rating. Crossflow types like the Sirocco are supposed to avoid this because the cap is at the mid-point in the flow through the rad, which drops some of the pressure seen by the cap.

Here's my question: Is there any reason a conventional rad can't be fed from the bottom, instead of the top? This would achieve similar effect as the crossflow cap location (all the way to the end of the flow path) & any air could be vented using the existing fittings. I'm also considering the removal of the spring loaded seal, & moving the pressure cap function to a separate swirl can. By doing this, the existing over-pressure port could function as the air removal port in the top tank of the radiator.


What am I missing?

Thanks,

Charlie
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