Bolts are commonplace in industrial plants, serving essential roles in various applications. Pumping stations, in particular, rely on flanges that require regular maintenance. Consequently, there is a constant demand for reliable bolting equipment and services.

Avoiding critical joint leaks is crucial. Beyond the effects of aging, improper tightening methods and the application of incorrect loads during the tightening process remain the primary causes of leaks. Properly tightened bolts play a pivotal role in preventing avoidable emissions into the environment and ensuring that connections remain secure, even in the face of vibrations.

In summary, bolt torquing and bolt tensioning represent two distinct methods for applying load to a stud. Achieving accurate load is essential to prevent leaks. Let’s delve into the specifics:

1. Bolt Torquing: This method generates load by turning a nut along a helical thread. It is the more commonly used approach.

2. Bolt Tensioning: In contrast, bolt tensioning involves stretching a fastener using what resembles a hydraulic load cell.

Our Bolting and Tensioning service directly addresses the issue of incorrect bolt load. By ensuring precise preload in bolted joints, we guarantee critical joint integrity. Bolt torquing remains the preferred method for achieving fastener preload, while bolt tensioning provides a reliable means of tightening thread fasteners using advanced hydraulics. It offers a quick and efficient solution for securing large-diameter bolts with high accuracy.

Both bolt torque and bolt tensioning are recognized methods for effectively sealing joints. 

Our supplementary Bolting Services encompass:

• Joint Splitting
• Nut Splitting
• Joint Alignment
• Hot Bolting
• Under Pressure Leak Repair
• Repair Clamps (Topside & Subsea)