Description

A Sealing Flange is an essential component in underground fuel storage and containment systems, designed to provide a tight, reliable seal around tank risers and sump penetrations. It serves as a protective barrier that prevents fuel leaks from escaping into the surrounding environment and stops groundwater from entering containment areas.

Manufactured from durable, fuel-resistant materials such as fiberglass or polyethylene, sealing flanges are engineered to withstand harsh underground conditions, chemical exposure, and long-term operational stress. They are commonly installed between the tank top and containment sump to ensure system integrity and environmental compliance.

Sealing flanges play a vital role in maintaining safe fuel operations, minimizing contamination risks, and ensuring that underground storage tank systems remain secure, compliant, and efficient over time.