2311 Executive Street, Charlotte, NC 28208-3637
704-399-8700
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Modern Welding


Professional pride isn't just an idea at Modern Welding—it's a tradition

Modern Welding Company is the largest underground and above ground steel tank manufacturer in the United States. Modern has eleven manufacturing subsidiaries nationwide offering regional service and competitive pricing. Since 1932, our team of fabrication professionals has provided fast, quality service, maintained the highest standards of design and fabrication, and employed the finest craftsmen in the industry to serve our customers.


Aboveground Vertical Storage Tanks

These are steel atmospheric tanks intended for aboveground storage of non-corrosive, stable, flammable, and combustible liquids that have a specific gravity not exceeding that of water. Maximum allowable working pressure is 0.5 psig as measured from top of tank. Vertical tanks may be of single or double wall construction. If the tank is a double wall configuration, then it has interstitial monitoring capabilities. These tanks may also be built with or without multiple compartments for multiple fuel storage. Tanks generally have flat bottoms and conical roofs.


Aboveground Horizontal Storage Tanks

These are steel atmospheric tanks intended for aboveground storage of non-corrosive, stable, flammable, and combustible liquids that have a specific gravity not exceeding that of water. Maximum allowable working pressure is 0.5 psig as measured from top of tank. Tanks can be furnished with stationary support saddles, anti roll supports or structural skids. Only new steel materials are used in tank constructions.


Integrated Overflow Compartment Tanks

"IOC™" Integrated Overflow Compartment: Modern's IOC tank was created to eliminate spills, environmental cleanup and monetary loss related to overfilling aboveground storage tanks. Modern's special overfill prevention design directs the excess product into the "Integrated Overfill Compartment". This only happens when the product level in the tank exceeds the 95% capacity rating. Each tank is sized with the appropriate normal and emergency vent openings as defined in the tank's standard of construction.


Modern Quality Tanks

Modern Welding Company's philosophy is to build a workplace where employees can work together as a team to provide quality products and services to its customers at a competitive price. To continue this philosophy, we must commit ourselves to continuing technological upgrade and continuous training of all departments.


We have several standard Quality Control programs: the Pressure Vessel Quality Control Program encompasses codes such as ASME (American Society of Mechanical Engineers), ASNT (American Society for Nondestructive Testing) and NBIC ( National Board Inspection Code). Structural Steel Quality Control Program includes codes such as AWS ( American Welding Society), ASTM (American Society for Testing Metals) and AISC (American Institute of Steel Construction). The Quality Control Program for tanks covers codes such as UL (Underwriters Laboratories), STI (Steel Tank Institute) and API (American Petroleum Institute).

Quality can be defined in several ways. Quality Assurance is the management activities that determine Quality policy, objectives and responsibilities and the research and development of Quality Control. Quality Control is the sum of the operational techniques and activities that are used to fulfill and verify the requirements of Quality Assurance. To assure compliance with quality objectives, we have developed the Modern Team Quality Management Program. Modern Team Quality Management is the involvement of all employees at all locations working together to provide the highest quality at the lowest cost.

Our greatest Quality Asset is our employees' personal quality standard. Modern Welding Company, Inc. believes our outstanding product is a direct result of our employees' dedication and teamwork.

Our commitment to continuous quality improvement will assist us in meeting our customers' needs into the 21st Century.


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