Protecting Plastic Pipes Against Freezing

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Protecting Plastic Pipes Against Freezing

The Plastics Pipe Institute, Inc. (PPI), has published a new Technical Note related to the protection of plastic pressure piping materials against freezing. PPI is the major trade association representing the plastic pipe industry.

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Steamfighter49

I take it I must be a member in order to see? Not real helpful.

EBEBRATT-Ed

I would like to know how to successfully insulate pex tubing. Fiberglass rigid pipe insulation doesn't work well with flex pipe. Armaflex in most cased is the wrong ID ..it doesn't fit the pipe sugly enough especially in chilled water applications to prevent condensation so what else is there?????

DanHolohan

@Steamfighter49, both links are working for me. I'm not a member and it's not asking me to join. What are you seeing?

Erin Holohan Haskell

Here's a link to the report (no membership required): https://plasticpipe.org/tn-65

pecmsg

EBEBRATT-Ed said:

I would like to know how to successfully insulate pex tubing. Fiberglass rigid pipe insulation doesn't work well with flex pipe. Armaflex in most cased is the wrong ID ..it doesn't fit the pipe sugly enough especially in chilled water applications to prevent condensation so what else is there?????

PEX is like refrigeration tubing you need the OD of the pipe. 1/2" requires 5/5" armorflex, 3/4" requires 7/8" Armorflex.