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Hevï Technology provides unique technical and physical resources to eliminate the risk of failed capital equipment and forced plant shutdowns caused by commonly-practiced yet uncontrolled bolted joint assembly procedures. Hevï's Technicians have worked around the world for Owners, OEMs, EPCMs and General Contractors during construction, repair or modification of critical process units. The company is also frequently contracted to address bolt failure and flange leakage on existing equipment.

Bolt Stress Control : A Core Competency

New Projects : OEM Warranty Requirements

With almost 20 years of experience, Hevï 's skilled Project Managers and Technicians are competent experts in this specialized field. Our expertise has been leveraged on major international projects in the form of Project Management, Project Supervision or, Client Training

After having experienced frequent warranty claims due to broken bolts and leaking flanges, some of the world's leading OEMs had recognized that conventional torquing methods rarely resulted in the application of the designer's intended bolt loads: bolts were often left either too loose or too tight. In response, these OEMs now require their customers to provide proof that the specified design bolt stresses have been applied before warranty coverage is offered.

Hevï : A Dedicated Resource

Bolts and bolted joints comprise highly complex systems often not accorded the appropriate degree of attention throughout all phases of a project. With limited resources and an understandable “Big Picture” focus, Project Designers, Engineers, Suppliers and Constructors, usually don’t have the time required for full review and oversight of all facets contributing to the integrity of a project’s critical bolted joints. Yet these relatively inexpensive and low-priority components often have a disproportionate impact on a project’s profitability, maintainability and ultimate success.

New Plant Construction? Refurbishment? Existing Problems?