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2017-3-24on pumps utilizing ball or roller bearings the inner race shall be fitted directly onto the shaft and reliably fixed by a shoulder on the shaft bearings on vertical-shaft pumps shall be so spaced as to prevent shaft whipping or vibration underLearn More
The two most commonly used non-coal tar based lining materials for steel water pipelines are cement mortar and epoxy cement mortar is applied as a 030 to 050 inch thick lining liberation of calcium hydroxide from the cement mortar inhibits rusting...Details
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