Return-Path: <marv@lancaironline.net>
Received: from [65.33.166.167] (account <marv@lancaironline.net>)
  by logan.com (CommuniGate Pro WebUser 4.0b9)
  with HTTP id 1804868 for <flyrotary@lancaironline.net>; Sun, 13 Oct 2002 23:27:49 -0400
From: "Marvin Kaye" <marv@lancaironline.net>
Subject: Re: [FlyRotary] Re: EWP water pump
To: flyrotary
X-Mailer: CommuniGate Pro Web Mailer v.4.0b9
Date: Sun, 13 Oct 2002 23:27:49 -0400
Message-ID: <web-1804868@logan.com>
In-Reply-To: <3DAA35F2.672ABC9@starband.net>
MIME-Version: 1.0
Content-Type: text/plain; charset="ISO-8859-1"; format="flowed"
Content-Transfer-Encoding: 8bit

Posted for Jim Sower <canarder@starband.net>:

I thought that in a closed system there was no head pressure.  If the system 
is
pressurized, there is system pressure, but still no head pressure.  The closed 
loop
cancels everything out.
Just wonderin' .... Jim S.


>         Yes, I do think it would account for errors in the test. Head 
>pressures on
> pumps are a big factor in sizing pumps & motors in industry.