pipe stress/strain using rotolign pro
DESCRIPTION
Question: Can we use the Rotolign Pro to check for pipe stress?Answer: Yes , Here is how!TRANSCRIPT
Before the suction and dischargeflanges are broken - take a "null"reading with the Rotalign Pro. That is,take a reading which will leave all zerosin the results screen. You do this bysetting up the Pro as you normallywould - then press and thenthe soft key but do not turn theshafts at all! Next press thesoftkey after which the Pro will tell you "This measurement is questionable!"Ignore the note & press the soft key & then press the yellowresultskey and you will have an all zero null alignment!Now start the Move mode bypressing the soft key. Next,observe what changes occur whenthe suction and discharge flanges arebroken. The changes you see areexactly what the pipe strain is doing tothe alignment at the coupling as youare monitoring the shaft centerlines!You might find 2 mils (.002) to be avery tight tolerance for pipe strain onsome applications. Some industrialplants have relaxed that to 5 mils(.005) which might be a better startingpoint. As the people get where theyaccept the 5 mils they themselves willtighten the tolerances.Have a Grand Day!Norm VoelzowStartsweepM Voelzow & Company, Inc. Wingate, NC 2004Pipe Strain02/13/2004Voelzow & Company, Inc.P. O. Box 158 Wingate, NC 28174Phone: 704-233-9222Fax: 704-233-9211E-Mail: [email protected]: http://www.LaserAlignment.net/Pipe StrainDo Not Loosenthe Bolts Yet!Question: Can we check Pipe Strain with our Rotalign Pro?Answer: Yes, the Rotalign Pro is great for checking Pipe Strain!Pipe Strain Pipe StrainPipe StrainPipe Strain