PVC liner for storage tank
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WoodNotOil
Minister of Fire
According to a quick Google search for "Polyvinyl Chloride maximum temperature" I came up with the following:
http://www.dynalabcorp.com/technical_info_pvc.asp
Maximum Temperature: 158°F 70°C
Melting Point: 176°F 80°C
This is why most people go with the "Firestone EPDM Pond Liner." Put that into a search engine and you will find lots of places to buy it. It has a high temp limit of around 180*, so you can't charge the tank past that (better to limit to like 175* though). There are materials that can stand higher temps, but they tend to cost a LOT more. Tom from Maine sells some different tanks and liners, you may want to check what he has too. Good luck!
http://www.dynalabcorp.com/technical_info_pvc.asp
Maximum Temperature: 158°F 70°C
Melting Point: 176°F 80°C
This is why most people go with the "Firestone EPDM Pond Liner." Put that into a search engine and you will find lots of places to buy it. It has a high temp limit of around 180*, so you can't charge the tank past that (better to limit to like 175* though). There are materials that can stand higher temps, but they tend to cost a LOT more. Tom from Maine sells some different tanks and liners, you may want to check what he has too. Good luck!
tom in maine
Minister of Fire
Most PVC liners are rated at about 140F.
They can tolerate 180F but will embrittle.
The material we use is a special run that we have used for quite a while (30 years).
Being a material that we have made for us, means that we have to buy a LOT of it at a given time.
And being a special run, it is more expensive than EPDM, which is everywhere.
And all EPDMs are not great for liner use. Some have more fillers than others. Evidence of this is all
the Entran tubing failures over the years.
PVC does not break down like EPDM, will embrittle if overheated.
Pond liner PVC is not adequate for heat storage over 140F. It is basically very similar to pool liner material.
Pool liners are rated at 110F.
They can tolerate 180F but will embrittle.
The material we use is a special run that we have used for quite a while (30 years).
Being a material that we have made for us, means that we have to buy a LOT of it at a given time.
And being a special run, it is more expensive than EPDM, which is everywhere.
And all EPDMs are not great for liner use. Some have more fillers than others. Evidence of this is all
the Entran tubing failures over the years.
PVC does not break down like EPDM, will embrittle if overheated.
Pond liner PVC is not adequate for heat storage over 140F. It is basically very similar to pool liner material.
Pool liners are rated at 110F.
flyingcow
Minister of Fire
Pm "Tom in Maine", get him in on this. his liners are PVC based, i think. They will withstand higher temps longer than EPDM liners. I have one of his, it's rated for 180+
Northwoodsman
New Member
I tested a PVC liner sample that I sold to a customer last fall for his 1200 gallon tank inboileing water for one hour.
The liner did not change one bit and is rated for a max. temp of 600F.
I am a deler for these lines and woul dbe happy to answer any questions you may have.
Thanks,
NWM
The liner did not change one bit and is rated for a max. temp of 600F.
I am a deler for these lines and woul dbe happy to answer any questions you may have.
Thanks,
NWM
tom in maine
Minister of Fire
I don't want to be rude, but I skeptical that there is any PVC nor PVC alloy that will tolerate 600F.
High temp PVC's melt at 350-500F.
High temp PVC's melt at 350-500F.
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