At Flange Management, we understand that a reliable joint begins with the correct bolt tension. Our specialized services combine advanced ultrasonic measurement technology with years of field experience to ensure the highest level of accuracy and safety in bolted connections—regardless of industry or application.
Our Services
On-Site Ultrasonic Bolt Stress Measurement
We perform on-site measurements of actual bolt elongation, strain, or tension using advanced ultrasonic equipment. This allows us to determine precisely whether each bolt meets the prescribed preload specifications set by the manufacturer or client.
Our experienced technicians carry out these measurements according to established procedures, providing immediate insight into the condition of each joint.
Applications: Flange connections, pressure vessels, pipelines, turbines, steel structures.
Ultrasonic Bolt Tension Testing
Using portable ultrasonic stress meters, we determine the actual tension in bolts during or after tightening.
This method eliminates the guesswork associated with torque-based tightening and allows for direct digital reading of bolt load.
In doing so, we optimize the clamping force per bolt, prevent leaks, and reduce repetitive maintenance.
Benefits:
- No disassembly or modification required.
- Accurate readings regardless of temperature or material.
- Ideal for quality control and periodic inspections.
Torque–Tension Analysis & Bolt Verification
We perform ultrasonic torque and tension tests to validate the relationship between applied torque, friction, and actual bolt tension. These analyses are essential for optimizing assembly procedures, improving bolt design, and preventing under- or over-tightening.
With our advanced equipment, we measure real-time tension increase during tightening and provide reports compliant with international standards.
Inspection & Verification of Bolted Connections
Our inspection services focus on verifying existing joints without disassembly. Through ultrasonic measurements, we check whether the current bolt tension matches the original design specifications. Any deviations are immediately detected, allowing corrective actions to be carried out quickly and effectively. We provide a complete measurement report with traceable data and recommendations for potential corrections.
Flange Load Verification & Documentation
Flange Management offers full load verification services for critical flange connections. Each bolt is individually checked, taking into account temperature effects, elongation, and material differences.
All measurement results are digitally recorded and presented in clear reports, providing complete documentation and traceability for audits and maintenance programs.
Consultancy & Technical Support
Our specialists assist clients with the design, maintenance, and optimization of bolted connections. We provide advice on correct assembly procedures, bolt selection, flange configuration, and maintenance schedules based on measured stress data.
Our goal is to help you prevent downtime and extend the lifespan of your installations.
Applications
Our ultrasonic bolt tension services are applied in:
- Energy and petrochemical industries.
- Offshore and marine installations.
- Wind turbines and heavy machinery.
- Process plants and piping systems.
- Steel and structural engineering.
Why Choose Flange Management
- Highly trained technicians with extensive field experience.
- Precision instruments with digital reporting.
- Rapid response, globally deployable.
- Full compliance with international safety and quality standards.