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Tag fast-start

8
Nov

Low Air Flow Freezes Pumps!

This post is an addendum to the post titled Air-Supply Considerations For An Air Motor On A Molten Metal Pump. The primary reason for molten metal pump freezing is “slow starts.” A slow-start is defined as slowly increasing the motor RPM. When a transfer pump is slow-started, the hot metal flows gradually into a cooler riser. …