Posted: 2/19/2017 12:32:04 AM EDT
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Working in a hospital built in 67 or so, it looks like maybe 2" galvanized pipe with some kind of nasty looking joint compound. Notice the long radius fittings...Attached File Attached File |
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Ok that might make sense. There's a newer and larger pneumatic system below this one, so maybe it's been abandoned, Thanks! I'd still like to know what kind of compound was used for those connections though... |
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Those kind of sweeps are used with central vac although I've only ever seen pvc personally. yep central vacuum system or remnants of an abandoned one. 
image from here . http://www.durovac.com/ |
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Looks a little small, at least compared with the pneumatic tubes I've worked with in hospitals over the last 22 years. Quoted:
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<a href="https://en.wikipedia.org/wiki/Pneumatic_tube" target="_blank">https://en.wikipedia.org/wiki/Pneumatic_tube</a> Looks a little small, at least compared with the pneumatic tubes I've worked with in hospitals over the last 22 years. if it is 2" then it is small for a current system, but maybe it was an appropriate size for a hospital 50+ years ago. Ours are about 4" in our hospitals. |
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Looks like an abandon central vacuum or suction system. The joints are probably sealed with a petroleum, tar or mastic sealant in the same vein as duct 'pookie'. I wouldn't think it would be fiber reinforced on such a small application.
Test a sample for asbestos if you're tearing it out. If it's negative or if your aren't concerned just saw it up into sections (away from the joints) and toss it in the trash 
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Looks like an abandon central vacuum or suction system. The joints are probably sealed with a petroleum, tar or mastic sealant in the same vein as duct 'pookie'. I wouldn't think it would be fiber reinforced on such a small application. Test a sample for asbestos if you're tearing it out. If it's negative or if your aren't concerned just saw it up into sections (away from the joints) and toss it in the trash I'm not concerned. We already got pushed off this site for 2 weeks to abate asbestos floor tiles. |
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I'm not concerned. We already got pushed off this site for 2 weeks to abate asbestos floor tiles. Quoted:
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Looks like an abandon central vacuum or suction system. The joints are probably sealed with a petroleum, tar or mastic sealant in the same vein as duct 'pookie'. I wouldn't think it would be fiber reinforced on such a small application. Test a sample for asbestos if you're tearing it out. If it's negative or if your aren't concerned just saw it up into sections (away from the joints) and toss it in the trash I'm not concerned. We already got pushed off this site for 2 weeks to abate asbestos floor tiles. I wouldn't be very concerned either. Out of general interest, can you get an up close picture of some of the sealant? |