[AD removed for archives] ------------------------------------------------------------------- Personals at Meeting Friends Online. Find your perfect partner...We?re here to help. Click below to register for FREE and start connecting! caadmZ5bOyW3Na/MeetingFriendsOnline ------------------------------------------------------------------- I agree with what Gary posted. A PVC pipe ruture can led to serious injury... Don ----- Original Message ----- From: "Gary H." <62to65mopar@xxxxxxxxxxx> To: <1962to1965mopars@xxxxxxxxxx> Sent: Saturday, April 09, 2005 10:32 AM Subject: RE: shop air system [AD removed for archives] ------------------------------------------------------------------- Need a Laptop? Get a Sony Vaio Laptop Free! caadlVAbOxfLca/ProductTestPanel ------------------------------------------------------------------- Is this three carb Stan? Welcome back! :) OSHA and the Plastic Pipe Institute apparently say plastic pipe is too likely to shatter unexpectantly if used in high pressurized air system. Here's a typical blurb, copied from a woodworker's discussion group: "Using plastic pipe in any compressed air system is strongly discouraged in pressures over 60psi. Don't use it. For a wood or cabinent shop blowing off sawdust it's fine. OSHA sets this limit at 30psi. The problem with the plastics is the additive packages in today's compressor lubricants cause the inside of plastic pipe to deteriorate, become brittle, and cause shrapnel type projectiles in high pressure failures. Cases have been documented of shrapnel penetrating drywall 30' away. Review OSHA.org. Aluminum pipe is the best, and goes up without chemical glues (plastic) or fire (copper) and is expandible when your shop grows." http://www.woodweb.com/knowledge_base/Compressed_air_delivery_system.html and a Tech Sheet from the Plastic Pipe Institute: Tech Sheet 101: Plastic Pipe Institute Recommendation Regarding the Use of Thermoplastic Piping for the Transport of Compressed Air or Other Compressed Gases “The Plastics Pipe Institute recommends that thermoplastics piping intended for the transport of compressed air or other compressed gasses be buried or encased in shatter resistant materials, unless the piping has been manufactured from materials which will resist shatter-type failures under the anticipated conditions. Specifically, aboveground installations of thermoplastic piping should only be made using products which have been suitably evaluated and which are recommended by the manufacturer for the particular intended service. It is recognized that while adequacy of strength is an important element in the safety of a compressed gas piping system, consideration must also be given to the nature of failure should accidental failure occur, whatever its cause. Above-ground piping which fails by shattering can present a serious hazard to personnel by the resultant flying shards, or pipe fragments, which are rapidly propelled by the released energy of the suddenly decompressing gas. Because the inclination of material to fail by shattering is determined not only by the nature of the material, but by pressure, pipe and fitting dimensions, and by the nature of the gas, the evaluation of shatter resistance should consider all these and any other pertinent factors.” Gary H. Stanley Clinton wrote: > > I'll opine on this. Why not use plastic pipe??? Way cheap and easy ti > install. I used 1" in my shop and run 150psi and have never had a > problem in ten years. No rust,no fuss, clean air. > Stan "computer up and running again" Clinton [AD removed for archives] ------------------------------------------------------------------- Want a laptop? Get an Apple iBook for free! caadlVBbOxfLcf/Amazing Computer ------------------------------------------------------------------- ---- Please address private mail -- mail of interest to only one person -- directly to that person. I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic. Thanks! '62 to '65 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html. [AD removed for archives] ------------------------------------------------------------------- Is your PC running at 100%? Check your PC's health in 2 minutes! caadlAsbOyW3Nf/PC Health Check ------------------------------------------------------------------- ---- Please address private mail -- mail of interest to only one person -- directly to that person. I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic. Thanks! '62 to '65 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html. bOyW3N.