Return-Path: Sender: "Marvin Kaye" To: lml@lancaironline.net Date: Wed, 26 Jan 2005 14:29:30 -0500 Message-ID: X-Original-Return-Path: Received: from mta-out-1.udlp.com ([207.109.1.8] verified) by logan.com (CommuniGate Pro SMTP 4.2.8) with ESMTP id 623523 for lml@lancaironline.net; Wed, 26 Jan 2005 14:19:04 -0500 Received-SPF: pass receiver=logan.com; client-ip=207.109.1.8; envelope-from=Christopher.Zavatson@udlp.com Received: from asdmngwia.mpls.udlp.com (asdmngwia.mpls.udlp.com [10.1.62.22]) by mta-out-1.udlp.com (8.12.10/8.12.10) with ESMTP id j0QHFgu2006797 for ; Wed, 26 Jan 2005 11:15:42 -0600 Received: from DM-MN-06-MTA by asdmngwia.mpls.udlp.com with Novell_GroupWise; Wed, 26 Jan 2005 13:18:33 -0600 X-Original-Message-Id: X-Mailer: Novell GroupWise Internet Agent 6.0.2 X-Original-Date: Wed, 26 Jan 2005 13:18:21 -0600 From: "Christopher Zavatson" X-Original-To: Subject: [LML] Re: pressure testing of gas lines. Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Disposition: inline Ron, What pressure to use depends on the material and size you have. Whatever the value, it is far safer to test hoses using fluid pressure rather than compressed gases. If something lets go or fails, it takes very little fluid expansion to relieve all the pressure in the system. A gas on the other hand will have a lot more energy to release. Several year ago there was an article in the LNN that described a great homemade hose tester made from plumbing supply parts. At the center is a cross. One leg attaches to the hose being tested, one leg to a pressure gauge, one leg to a zerk fitting, and the leg opposite the hose is attached to a shut off valve and a garden hose fitting. The pressure test is conducted by filling the subject hose with water and capping off the open end, shutting off the water supply and then pressurizing the system with a grease gun. -works very well. I used it on all fuel and oil lines. Chris Zavatson N91CZ 360std