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Air Gun Home Forum Index » Accessories » Air tank question...    View previous topic :: View next topic  Air tank question...   Posted: Wed Apr 13, 2011 8:05 pm WhitleyStu Veteran Member Joined: 15 Feb 2011 Posts: 202 Location: NE Indiana U.S.A. Would some of you fine gents please explain the price difference in 88 ci 4500 psi paintball tanks compared to 88 ci 4500 psi SCBA tanks sold to refill PCP guns. Can you use the less expensive tanks for PCP fills? Thanks, Stu http://www.amazon.com/Empire-Paintball-88ci-Carbon-Fiber/dp/B004KNOH84 http://www.pyramydair.com/s/a/Carbon_Fiber_Tank_4500_psi_88_cu_ft/350   Posted: Wed Apr 13, 2011 8:17 pm AirGunEric Site Admin Joined: 20 Jan 2007 Posts: 6930 Location: "Out There" One of those tanks (the amazon link) is an 88 cubic INCH tank the other (airhog) is 88 cubic FEET- as in about 152,000 cubic inches. That is a rather significant size difference. Beyond that- I would have to assume that the interior of a true SCBA tank has some sort of formally regulated cleaning methodology as it is, effectively, pretty much a "medical" gas tank of sorts, whereas a paintball tank is not. _________________ ` I'd say "I care." But I'd be lying. Canadian Airgun Supplier: http://www.scopesandammo.com/storefront   Posted: Wed Apr 13, 2011 8:30 pm WhitleyStu Veteran Member Joined: 15 Feb 2011 Posts: 202 Location: NE Indiana U.S.A. Eric, Thanks... I read through those so fast I did not notice "feet" VS "inches" in the description. Yep, that woulde make a big difference in price.   Posted: Wed Apr 13, 2011 9:00 pm rsterne Moderator Joined: 15 Jan 2008 Posts: 2998 Location: Coalmont, BC WHOA !!! Paintball tanks are rated using the INSIDE VOLUME of the tank.... so an 88 ci tank filled to 4500 psi actually contains 4500/14.5 = 310 Bar times 88 ci = 27,280 ci divided by 1728 = 15.8 cubic feet at 1 Bar.... SCBA (and SCUBA) tanks are rated by the amount of air they hold AT ATMOSPHERIC PRESSURE (ie 1 Bar).... so an 88 cu.ft. tank contains 88 cu. ft.... about 5.6 times as much air as an 88ci Paintball tank.... Bob _________________ Dominion Marksman Silver Shield - 5890 x 6000 in 1976, and downhill ever since! Airsonal: Too many to count!   Posted: Wed Apr 13, 2011 9:23 pm AirGunEric Site Admin Joined: 20 Jan 2007 Posts: 6930 Location: "Out There" Lovely- mix up the measurement systems used on virtually identical technology. Perhaps the 'paintball' people should have used the same rating system as the long-established diving-standards (!?!) _________________ ` I'd say "I care." But I'd be lying. Canadian Airgun Supplier: http://www.scopesandammo.com/storefront   Posted: Thu Apr 14, 2011 3:56 am broommaster2000 Moderator Joined: 10 Mar 2007 Posts: 5714 Location: City of Groningen, Groningen, The Netherlands Wow, that's pretty darn stupid. _________________ BIG GAP Air tank question...     Air Gun Home Forum Index » Accessories You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum All times are GMT - 5 Hours   Page 1 of 1   All Posts1 Day7 Days2 Weeks1 Month3 Months6 Months1 Year Oldest FirstNewest First  Select a forum Main Forums----------------AirGunHome Q&AGeneral Air Gun Questions and TopicsPicture GalleryTarget Shooting: Casual, Fun and CompetitionHunting, Pest Control, Varminting People/Events/Airgun Issue Discussion----------------Introduce YourselfThe BS TopicClubs/Events/Regional/Political Airgun Issues Maintenance, Modification and Reviews----------------RiflesPistolsAntique, Collector and Novelty AirgunsBB GunsPellets/AmmoOpticsAccessoriesAirgun Smithing Buy, Sell or Trade Forums----------------For SaleWant to Buy   Note: If you are seeing "Please enter your username and password to log in." Your browser cookies have been reset or you need to register to access the topic in question. Use the 'Register' button near the top left of this page. Click Here for AirGunHome.com Main Page Powered by phpBB © 2001-2004 phpBB Group Partial Styling Supplied by Vjacheslav Trushkin Themes Database.