Experimenting with evacuted tubing

I propose building a small diameter tube test-bed with easily obtained parts.
I think such a test bed should be modular and no piece should be longer than 3 meters.
Many kinds of pipe come in 3 meter lengths in the USA.

ABS ( black ) plastic pipe is easy to glue, cut and machine.
This pipe comes in 2 , 3 and 4 inch diameters.
For a low budget test bed , 2 inch pipe comes in at $7.30 per 3 meter chunk.

I would want to pump it down to at least the level proposed by EM.  That is 100Pa ( Pascals ) or .015 PSI.










keywords    EMHLOOPTestBedPipe