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Posted

What do the letters SDR stand for?

Marc

In the trades around here, it just means "sewer pipe," though most people here call it "3034," after its ASTM designation.

In a quick Google search, I was surprised to find that it actually means "Standard Dimensional Ratio" and refers to the ratio between the diameter of a pipe and its wall thickness - the lower the SDR number, the thicker the pipe wall.

The thing in the picture does, indeed, look like sewer pipe.

Posted

What do the letters SDR stand for?

Marc

Size Dimension Ratio,its normally sdr26 or sdr35.

Basically its either 26 or 35 times the wall thickness of the pipe,We are only allowed to use it for sewer lines outside of a structure around here anyway.

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