External Corrosion
External corrosion—whether environmental, crevice, or galvanic—can lead to both localized damage and significant metal loss. The degree of wall thickness reduction determines the appropriate repair strategy. Generally, repairs for external corrosion should not only restore integrity but also prevent further degradation and recurrence.
Internal Corrosion and Erosion
Piping systems that transport fluids are vulnerable to internal corrosion, erosion, or a combination of both. Assessing the extent of internal metal loss is more complex, and in some cases, stopping the progression of damage may not be feasible. Therefore, thorough inspection and evaluation are critical before selecting the proper repair method and components to address internal degradation.
Pipe Leakage
Leaks can result from both external and internal metal loss or from failures at welded seams and joints. The repair approach depends on the source and severity of the leak. Localized issues can often be addressed with a repair clamp, while more extensive damage may require pipe section replacement using couplings. The chosen repair solution must also be compatible with the fluid’s corrosivity and meet the system’s pressure requirements.
How Long Will a Pipe Repair Clamp Last?
The service life of a pipe repair clamp depends on several factors, including the clamp type, the severity of the pipe damage, and the operating conditions of the system. Selecting the appropriate clamp requires a thorough risk assessment to evaluate potential failure modes and ensure long-term reliability, especially in critical infrastructure.
Depending on the situation, a clamp may serve as either a temporary or permanent solution. Temporary repairs often utilize patch clamps, pin-hole clamps, or outside diameter flange-type clamps. In contrast, encircling sleeves and stand-off clamps are typically designed for permanent repair, offering greater structural support and durability.
