Peaking & Banding | PPT - SlideShare
May 14, 2020 · Peaking is measured using a horizontal sweep board along vertical joints, while banding is measured using a vertical sweep board along horizontal joints. Acceptance criteria per API standards allow for peaking deviations of up to 13 mm and banding deviations of up to 13 or 25 mm depending on the standard.
Example de Peaking and Banding - AST Forum
Jan 19, 2010 · Peaking is when the Vertical shell weld or weld joint is not properly fit up and it makes a peak at the joint. Sometimes this is caused because the shell plate wasnt properly rolled. The radius of the tank in that area will not be correct.
Peaking Banding | PDF | Nature - Scribd
A template made from a 1-meter wooden board cut to the radius of the tank shell is used to measure peaking and banding. The straight edge is used to measure banding and the curved edge is used to measure peaking.
Peaking & Banding - API 650 Tank Book - Tool for Measuring
How to perform peaking and banding on an API 650 tank. Please sign in or register to post comments. Was this document helpful? On Studocu you find all the lecture notes, summaries and study guides you need to pass your exams with better grades.
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Peaking & Banding - PDF free - Scribd Downloader
For a more accurate positioning of the sweep board, slide the board vertically to fit it properly to the tank shell. A torch light & scale/measuring tape may be used to assess the gap between the sweep board and the tank shell.•
KNOWLEDGE: Storage Tank (API 650) INSPECTION - Blogger
Mar 10, 2014 · Banding measured using a straight edge vertical sweep board 36 inch (900 mm) long. Tolerance of peaking shall not exceed ½ inch (12.7 mm).
Peaking & Banding | PDF | Welding | Construction - Scribd
The sweep board shall be true to the radius of the tank, either inside radius or outside radius. For measuring from. finside the tank, the sweep board shall be convex shaped in one side and straight on the other side. For measuring. from outside the tank, the sweep board shall be concave shaped in one side and straight on the other side.
CNT on Example de Peaking and Banding - AST Forum
Jan 7, 2010 · Peaking is when the Vertical shell weld or weld joint is not properly fit up and it makes a peak at the joint. Sometimes this is caused because the shell plate wasnt properly rolled. The radius of the tank in that area will not be correct.
KNOWLEDGE: Peaking procedure - Blogger
Apr 11, 2012 · Peaking procedure: 1. Prepare a horizontal weep board 900 mm long. The sweep board shall made to the nominal radius of the tank. 2. Take a sample of vertical joint at least 4 point. 3. Measure the deviations using a taper gauge. 4. Deviations at vertical weld joint shall not exceed 13 mm Banding procedure: 1.
Local deviations - AST Forum
Jun 4, 2005 · Sweep the board along the horizontal weld seam and measure the gap between the board and the shell not exceed 1/2 inch. If the deviation attrack inside use the outer radius board for measurement and if the deviation attrack outside use inside radius board for measurement.
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