This is a multi-part message in MIME format. ---------------------- multipart/alternative attachment Journal Article - BAD IDEA! I was reading an article in he latest PTG Journal, (March, 2004), when I = identified a major hazardous no-no. The article is on page 25, = "Finishing Pianos: The Jewels of the Furniture World, Part 6. In the article it recommends using PVC pipe for plumbing your shop with = compressed air to a stationary compressor. This is a subject that I had = already been exploring, as I am intending on plumbing my shop for = compressed air with multiple tap points throughout the shop. Here is the problem: PVC is designed for transporting non-flammable = liquids, i.e. water, NOT compressed air or gasses. Under pressure PVC = becomes very rigid and non-flexible. PVC plastic does not expand, it = explodes! In such an event it shatters like glass sending flying shards = in every direction. There have been mulitiple reports of serious injury = resulting from exploding PVC line being used for compressed air, = including the relatively low, (55-130 PSI) pressures generated by common = shop compressors. It is tempting to use PVC because of it's cheapness, = easy installation, and high resistance to corrosion. Unfortunately it = is not a wise solution. Use copper or steel pipe only, not PVC!!! The following links will take you to credible data on why not to do = this, (including OSHA data which forbids PVC for compressed air). http://wolfstone.halloweenhost.com/LocalMirror/hib19880520.mht http://www.lni.wa.gov/Safety/KeepSafe/HazAlerts/902.ahttp://wolfstone.hal= loweenhost.com/LocalMirror/hib19880520.mhtsp http://www.woodcentral.com/bparticles/airpiping.shtml Rob Goodale, RPT Las Vegas, NV ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/04/1f/44/62/attachment.htm ---------------------- multipart/alternative attachment--
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