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Best pipe material for filter air scour header pipe?

Best pipe material for filter air scour header pipe?

Best pipe material for filter air scour header pipe?

(OP)
I am adding air scour to an existing, rapid sand filter at a municipal water treatment plant. What is the best (or traditionally most used) pipe material for the air header pipe?

The blower will be located outside in a small blower building. About 25 feet of pipe will be buried.  Will need around 100 ft of 8 to 10 inch pipe. Pressure will be around 10 PSI with a volume of around 1500 scfm.

Plastic/PVC Schedule 80? Schedule 10 Stainless Steel? Carbon/Black steel?

RE: Best pipe material for filter air scour header pipe?

Thin wall spiral welded stainless steel

RE: Best pipe material for filter air scour header pipe?

I've typically used Sch 10 SS ;however, I have used Sch 5 to save costs.  Its low pressure; but, it will heat up, particularly near the blower.  Why bury it?  Keeping it exposed won't damage it, even outside.

Double check things with the filter/air scour grid manufacturer to make sure you have appropriate connections and drop sizes.

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