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where fine granular soot is carried from the process into the pump). designers and users of vacuum furnaces must have a good understanding of how claw and screw pumps operate. this includes the principles of operation, pump design, sealing, operating characteristics, features, purging, and ancillary
of edwards vacuum) principle of operation of the various vacuum pump technologies, screw pumps are considered dry, positive displacement pumps. dry, because the gas being transferred is not exposed to oil or water used in the pump, whereas wet pumps use oil or water as a lubricant and help provide a...
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