“Having worked in the Oil & Gas, Nuclear and Renewables Industry all my career, the support of a quality surveying company is paramount to the achievement of any construction project.
I have had the privilege of having that expertise from RSL on most projects I have been involved with.
RSL’s ability to adapt to the changing specifications, difficult situations and challenging projects is a credit to all their staff.
No project is too small for RSL, whether a barge layout to install sea fastening grillage, to the complicated offshore wind farm jacket foundations that form our skyline in the North Sea.
Having the latest technology RSL produce accurate surveys with detailed dimensions which is an essential support for all construction teams to execute a successful project.”
Flanges are essentially joints, so they must be machined properly in order to avoid tension during or after coupling, and also to ensure water tightness of the coupling faces. Achieving geometrical correctness is made difficult due to the manufacturing method. During the welding of the flange segments together or during storing of the sections, tension and/or stress can be induced. The ability to detect and ultimately react to these dangers ensures a trouble-free service life. Traditionally older methods would mean that you had to rely on straight edges and feeler gauges to accurately measure flatness on flanges. This method is fine as long as the objects are smaller than the straight edge, but with segmented, chained, or overlapping measurements the problem of surface waviness arises. This created the need for modern measurement tools, methods, and techniques to be able to combat these problems in a fast and easy way. By using the Status Pro flange laser system, it became possible to measure the entire flange against a constant reference; an ultra-flat plane of laser light.
This is done by firstly mounting the laser directly on the flange allowing the laser beam rotation to effectively produce a laser plane. Using the laser receiver, we are able to measure the distance between the flange surface and the laser plane very accurately. By simply allowing the laser to rotate 360 degrees, this produces an ultra-flat plane of laser light. Using the hand handheld PC/Tablet and appropriate flange flatness software real-time results are provided. Again, using the hand-held tablet a measurement report in PDF format is produced, and the data can also be transferred as a CSV file into other types of software for further analysis if so desired. Consequently, evaluation of the raw data is possible with most programs and applications.
RSL are able to offer flange flatness verification using sub millimetre total stations and Status Pro measurement systems. Using the status Pro Flange system, we are able to accurately measure machined flatness to within 0.2mm.
This enables RSL to complete flange surveys of any size. Bolt hole diameters can also be surveyed for the following parameters to specified tolerances.
