New at PipingDesign.com: 07 March 2001

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Safety & Submarine Design
U.S. Submarines, Inc.

<<There are a number of important criteria useful in evaluating
passenger submarine design, but the first question asked by a prospective customer is "Are they safe?">>

<a href="http://www.pipingdesign.com/compressors.html">http://www.pipingdesign.com/compressors.html</a>

Improving Compressed Air System Efficiency Clean Dry Air, Inc.

<<This article provides a step-by-step guide to evaluating and
identifying cost reductions in compressed air systems. The ultimate goal is using the least amount of compressed air at the lowest pressure with a quality that satisfies your total compressed air system requirements. As with many things, proper equipment selection and conservation techniques are the keys to efficiency and savings.>>

Pressure Losses in Compressed Air Piping Clean Dry Air, Inc.

<<This loss is due to wall friction and in most cases, to air
turbulence causing internal gas friction. It is the nature of the beast. Getting compressed air to flow and keep flowing in a pipe there must be a pressure difference between the two points. Pressure loss occurs along the pipe roughly proportional to the distance the air has traveled. So why don't we design compressed air piping systems to absolutely minimize pressure drop? Well the reason is that piping designer must balance pressure loss against the first cost to install the system. Piping economics can become quite complex and will be addressed in a separate article.>>

Investment-Grade Compressed Air System

<a href="http://www.pipingdesign.com/safetydevices.html">http://www.pipingdesign.com/safetydevices.html</a>

Beware the Energy During Hydrotest
Australian Pipeline Industry Association

<<The integrity of a pipeline must be determined by a hydrotest.
The energy content of high-pressure air or water or a mixture of both has the potential to do massive damage. Successful hydrotesting requires a commitment from owner, constructor, operator and engineering organisations to manage the hazards and reduce the risks. There must be an approach that identifies the hazards and sets standards for safe procedures on all projects. Work practices are available and should be used to eliminate hydrotest related incidents.The following guidelines should be considered in the project planning, preparation and execution of the hydrotest.>> Received on Wed Mar 07 21:01:00 2001