Railroad tank cars reported 363 non-accidental releases in 2019, often caused by improperly secured valves or defective components. UTLX sought to tackle this recurring safety issue by reimagining manway cover designs.

UTLX’s engineers leveraged finite element analysis (FEA) to create the 3-Bolt Manway Cover, featuring fewer bolts, a simplified torque pattern, and a first-of-its-kind seal that uses tank pressure for enhanced safety.

Partnering with Trelleborg, UTLX designed a spring-energized elastomer seal, inspired by pressure cooker technology, to minimize leaks and ensure a tight seal under pressure.

The cover underwent rigorous testing, including 1.25× regulatory pressurization standards, successfully proving its effectiveness for trial use over two years.

With plans for full implementation on 100,000 tank cars by 2024, the 3-Bolt Manway Cover is set to minimize NARs, increasing safety, efficiency, and savings industry-wide.