Benefits of pipe spool manufacture, that generate cost savings in prefabrication, inspection and testing.
The quality of the job is easier to manage and maintain in a controlled workshop environment.
List of the benefits of pipe spool manufacture
Compliance with the specified tolerances for easy compliance in the shop avoids on-site rework.
The manufacturer is climate independent, allowing continuous operation by eliminating production delays due to bad weather.
Prefabrication is the perfect solution to the shortage of skilled workers on the job site.
Installers do not have to mobilize a significant workforce to manufacture coils on site.
Mass production, manufacturing, will lead to lower manufacturing costs than in-house manufacturing.
Prefabricated products require less production/assembly time, preventing cost overruns and time increases.
Pre-fabrication requires little or no investment in manufacturing equipment and testing of installation firms.
Radiographic tests, magnetic particles, penetrating liquids, ultrasonic tests, hydraulic tests, etc., may be performed in controlled environments.
Prefabricated spools are inspected under the strict supervision of third-party inspection agencies, ensuring 100% compliance with the specified quality standards.
Better control of welding parameters in the controlled shop is also achieved, which means fewer repairs than if they were manufactured on site.
Reduction of dependence on available energy, preventing unnecessary delays.
In the Workshop, there is a greater control of safety during the manufacture than that which is obtained on the site of the Work.
Off-site spool manufacturing also means less slag, abrasive dust, smoke and other unacceptable contaminants in food processing plants. Pharmaceutical plants and other facilities that require very hygienic environments.
Precautions to be followed
Pipe spool manufacturing has huge advantages, but serious disadvantages occur when there are errors in size.
This happens for different reasons, the most frequently have their origin in a bad interpretation of an isometric in the Workshop or also by a failure of Engineering in the dimension of an isometric.
We point out that a mistake in the coils can generate a lot of extra work because the rest of the coils in this line has to be changed. This often means that hydraulic tests have to be done again, NDT tests of the welds have to be repeated, etc.
Savings: When prefabricated performance increases. The consumption of man-hours expected for welding joints are reduced by a significant percentage, which is related to the workshop facilities and the diameter and thickness of the piping.
In the next post we will discuss how to calculate man hours in piping jobs.
Benefits of pipe spool manufacture – Calculate man-hours
