ENGINEERING & FABRICATION
Water Pumping Stations and Columns
Client
SULZER
Industry
Water Treatment
Equipment
Water Pumping Station
Materials
Steel
Our Service
Engineering & Fabrication
01
OVERVIEW
Precise tolerances
The CLIENT designs pumping equipment and water columns (fully submerged vertical tubes also called suction cans) for water treatment facilities. They needed a fabricator to manufacture to precise tolerances for alignment along the entire vertical length. A large diameter feed nozzle (ratio r/R = 0.90) creates a high concentration of welding and was also a major concern for linearity.
Client
SULZER
Industry
Water Treatment
Equipment
Water Pumping Stations
Materials
Steel
Our Service
Engineering & Fabrication
02
APPROACH
Engineering collaboration
DIMARTECH engineers provided the CLIENT with an action plan with regards to welding techniques, weld sequencing and inspection points. The primary concern of precise vertical alignment was addressed to reduce any possible compressive buckling effect to the shell, and was progressively inspected as the fabrication work advanced.
Any weld deviation would have created a bowing effect along the entire length.
There was constant communicating between DIMARTECH and CLIENT engineers to ensure alignment will be successful.
03
DELIVERABLES
Engineering to better welding techniques
Several units were built with different materials of varying Thermal Coefficients of Expansion: Carbon steel = 0.0000059, Stainless SS316L = 0.0000090, Super Duplex 2507 = 0.000072.
Through DIMARTECH’s recommendations, the CLIENT’s drawings were slightly modified to permit better welding techniques. The collaboration between DIMARTECH and the CLIENT’s engineers resulted in the successful completion of design modifications, fabrication, inspection, and testing.
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