Large Pipe Measurement

Solution

OMS’ Pipe Checker Manual/Ovality Tool offers a powerful method for the measurement of large diameter pipes.

Existing heavy ring gauges or stick micrometers are not easy to use and are time consuming.  OMS’ tool clips easily onto the end of a pipe and measures several hundred points using laser technology to accurately provide the maximum and minimum pipe diameters, as well as the average size of the pipe.  All pipe information is then stored on a laptop in a spreadsheet.

The tool comprises a support arm that is held in place by a mechanical clamp.  A second arm is mounted on the rotation head, which is set to the same height as the centre of the pipe.  A non-contact distance measurement sensor is mounted at the end of the arm.  The operator rotates the arm and pipe statistics are then stored along with the pipe identifier or code, enabling improved management of the supply contract and welding process.

Based on years of experience, the tool is robust and reliable for use in varying conditions in the field.  A clever mix of high and low technology means that the tool is easy to maintain in the field.  Bluetooth connection enables measurement results to be communicated to a PC or laptop therefore eliminating the use of trailing wires, which can be damaged or may hinder operation of the tool.

Benefits to the Client

• Accurate dimensional measurement
• Pipe shape/profile information in real time
• Quick measurement
• Data recorded on a laptop
• Maximum ovality points can be marked on the pipe
• Complete measurement of pipe geometry
• Resulting information can be used as an aid to discussions and negotiations with welders prior to pipe laying
• Negotiate on pipe quality with pipe mills before signing off deliveries

Client Requirement

Large pipes from 24” to 48” in diameter are difficult to measure using traditional metrology tools such as stick micrometers, PI tapes and Vernier callipers.  Clients range from pipe mills, pipe welders, project owners and QC inspection companies.  They all require fast and accurate measurement of large pipes to manage fit-up or to perform dimensional checks.