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PIPE STRAIN CHECK PROCEDURE
1. F or hori hori zonta zontall lly y mo mounted unted machines chi nes
Two dial indicators are placed on the coupling hub or the shaft of the machine being checked for pipe strain .
The two dial indicators will measure the machine shaft movement in the vertical and horizontal directions when the flange bolts will be tightened to the required torques .
Connect the piping flanges to the machine flanges one by one and tighten the bolts to the required torque and checking the indicators readings.
Note :Use the recommended gaskets .
The tightening procedure as follows Step 1 = 10% of the torque torque Step 2 = 30% of the torque Step 3 = 100%of the torque
After bolts has been fully tightened to the maximum torque . Now check the indicator reading
Note :Reading may exceed 50 micron during tightening process. The maximum shaft movement shall not exceed 50 microns . Maximum value value the dial shall read = 50 microns .
2. F or ver ver tica ti call lly y mo mounted unted machines. chi nes. Horizontal orientation is perpendicular to the pipe centerline when viewed from top . Vertical orientation orientation is parallel to the pipe centerline when viewed from top.
