Valves are especially vulnerable to abrasion from hydrocarbon fluids.
The internal components such as the seat, which plays a vital role in sealing a valve, is continually exposed to product flow. Over time, valve packing glands can leak, causing safety, environmental, and operational hazards.
Colt determines the best repair and sealing method specific to each asset by evaluating material compatibility, pressure and temperature ratings, and adherence to applicable standards and regulations. Timely online valve leak repair prevents further damage and deterioration to valves and associated components. This helps extend the lifespan of the equipment, optimizing its performance and reducing the need for premature replacements.
Many valves utilize packing material to create a seal around the valve stem. If the leak is originating from the stem area, replacing the valve packing material can often resolve the issue. This involves removing the old valve packing and installing new packing material to create an effective seal.
Colt valve packing repair method depends on factors such as the type of valve, the severity of the leak, and the operating conditions. They include:
Colt utilizes drill and tap procedures to effectively seal leaks on pressurized equipment ranging from vacuum to 5,000 psig and temperatures ranging from cryogenic to 1,850°F, including:
Our technicians ensure the sealant used is comparable to the valve manufacturer’s original packing material so it will not harden or render the valve inoperable.
Repair wraps, such as composite repair wraps or epoxy-based wraps, are applied directly to the leaking area of the valve. These wraps typically consist of multiple layers of material that are impregnated with resin and then wrapped tightly around the valve, forming a temporary repair that seals the leak. Repair wraps provide a quick and convenient solution for temporary containment.
Leak sealing tapes are specially designed tapes that have self-fusing properties. When applied to the leaking area of the valve, these tapes create a tight seal that prevents further leakage. Leak sealing tapes are easy to use and can provide temporary containment for various types of valve leaks.