Foam Core PVC: Difference between revisions
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*Foam core is allowed for DWV applications, but not in pressure applications | |||
*Not as strong as solid core - more deflection - [https://www.jlconline.com/how-to/q-a-cellular-pvc-pipe_o#:~:text=The%20inside%20and%20outside%20walls,%2Dwall%20sewer%2Dgrade%20pipe.]. But that actually makes it last longer, according to wikihow? [https://www.ehow.com/info_12198160_pvc-foam-core-pipe.html] and this [https://truborepipes.com/products/underground-drainage/foam-core-piping-systems/] explicitly stating it's longer-lived than solid core. | *Not as strong as solid core - more deflection - [https://www.jlconline.com/how-to/q-a-cellular-pvc-pipe_o#:~:text=The%20inside%20and%20outside%20walls,%2Dwall%20sewer%2Dgrade%20pipe.]. But that actually makes it last longer, according to wikihow? [https://www.ehow.com/info_12198160_pvc-foam-core-pipe.html] and this [https://truborepipes.com/products/underground-drainage/foam-core-piping-systems/] explicitly stating it's longer-lived than solid core. | ||
*Stack Exchange says it can bend more [https://diy.stackexchange.com/questions/44593/what-is-cellular-core-or-foam-core-abs-pipe], some jurisdictions don't allow it but only in commercial construction. | *Stack Exchange says it can bend more [https://diy.stackexchange.com/questions/44593/what-is-cellular-core-or-foam-core-abs-pipe], some jurisdictions don't allow it but only in commercial construction. | ||
*There is a significant difference for direct burial. Only 1/2" gravel or smaller is allowed for foam core. [https://www.phcppros.com/articles/15201-value-engineering-commercial-dwv-with-foam-core-pvc]. | *There is a significant difference for direct burial. Only 1/2" gravel or smaller is allowed for foam core. [https://www.phcppros.com/articles/15201-value-engineering-commercial-dwv-with-foam-core-pvc]. | ||
*Foam core is ASTM F891 [https://www.astm.org/f0891-16.html] while ASTM D1785 is for solid core (pressure pipe) [https://www.astm.org/d1785-21a.html] | *Foam core is ASTM F891 [https://www.astm.org/f0891-16.html] while ASTM D1785 is for solid core (pressure pipe) [https://www.astm.org/d1785-21a.html] | ||
Latest revision as of 22:11, 23 April 2023
- Foam core is allowed for DWV applications, but not in pressure applications
- Not as strong as solid core - more deflection - [1]. But that actually makes it last longer, according to wikihow? [2] and this [3] explicitly stating it's longer-lived than solid core.
- Stack Exchange says it can bend more [4], some jurisdictions don't allow it but only in commercial construction.
- There is a significant difference for direct burial. Only 1/2" gravel or smaller is allowed for foam core. [5].
- Foam core is ASTM F891 [6] while ASTM D1785 is for solid core (pressure pipe) [7]