Permeability is determined by measuring the time required for air at standard volume and pressure to pass through the sand specimen. The permeability meter determines how easily air can pass through the molding (core) sand.
Stz laboratory sand permeability meter employs the orifice method for the rapid determination of sand permeability.
It is composed of a water tank, a air drum, a three-way valve(on the left of the meter), specimen pedestal(on the right of the meter) and a pressure gauge.
Air at a constant pressure is applied to a standard sand test specimen in a specimen tube, and the drop in pressure is measured on a pressure gauge, which is calibrated directly in permeability numbers.
The pressure gauge dial has three separate graduations. The inner scale gives air pressure in mm of water, and the other two are calibrated directly in permeability numbers one for each orifice.
Main technical parameter:
Size:470x280x430mm
Weight:30kgs
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