Maintenance Method of Forged Steel Globe Valve

Forged steel globe valves are an integral and critical component in industrial systems, known for their superior durability and reliable flow regulation. Whether in petrochemical, gas, power or other industrial sectors, proper maintenance of forged steel globe valves is key to ensuring their service life and optimal performance. This article will delve into the maintenance methods of forged steel globe valves to help you better maintain these important equipment.

Regular Inspection and Monitoring

Regular inspection and monitoring is the first line of defense against valve failure. Inspection should cover body, cap, stem, packing gland, etc., looking for early signs such as cracks, corrosion, leakage, or wear. In particular, check the sealing surface of the seat and disc to see if there is any damage or accumulation of foreign matter. The operation of the valve stem should be smooth, and there should be no obvious resistance or abnormal noise when the handwheel rotates. If the operation is not smooth, it may be necessary to further check whether the forged valve stem is bent or whether the packing is aging and failing. Regular, comprehensive inspections can detect potential problems early and prevent minor failures from becoming major problems, saving subsequent maintenance costs and time.

Valve Cleaning and Anti-corrosion Treatment

Keeping the valve clean is essential to ensure its proper operation. Valves are exposed to a variety of operating environments and are vulnerable to dirt, oil, dust and corrosive chemicals. External cleaning can be done with a solvent suitable for metal surfaces, while using a soft cloth or wire brush to remove stubborn deposits. Before performing internal cleaning, ensure that the system is decompressed and valves are isolated to avoid safety hazards. Carefully remove accumulated residue and sediment from the inside to prevent damage to the seat and disc. After cleaning, you can consider using anti-corrosion coatings or lubricating oil for protection, especially in high humidity or corrosive environments, to extend the service life of the valve.

Lubricate and Prevent Sticking

The moving parts of forged steel globe valves, such as stem, packing, etc., need regular lubrication during operation to reduce friction, reduce wear and prevent parts from sticking. The choice of lubricant is very important and must be compatible with the material of the valve and the working environment of the system. It is recommended to use a high quality lubricant and regularly apply the appropriate amount of lubricant to the valve stem and packing area to maintain the flexibility and tightness of these components. Regular lubrication can effectively prevent the aging of the sealing parts and the corrosion of the valve stem, and further ensure the long-term stable operation of the valve.

Tighten the Loose Parts and Adjust the Sealing

In the case of frequent operation or pipeline vibration, some fixed parts of forged steel stop valves may gradually loosen. Regular inspection and tightening of all nuts and bolts, especially fasteners on the bonnet and packing gland, ensures the structural stability and sealing integrity of the valve. Special attention should be paid to the tightness of the filler should be moderate; Too tight may increase the resistance to stem operation, too loose will cause leakage. According to the actual use, timely adjust the packing gland to ensure that the seal around the valve stem is maintained in the best condition.

Replace Worn or Aging Parts

Even if properly maintained, some parts will gradually age or wear out due to long-term use. Common parts that need to be replaced include packing, seat, disc and stem. It is recommended that when replacing parts, choose original parts or high-quality substitutes from reliable suppliers to ensure their compatibility with the valve and avoid the use of substandard substitutes resulting in reduced valve performance or unstable operation. Regular replacement of worn parts can effectively prevent sudden failure and extend the service life of the valve.

Valve Testing and Calibration

After completing maintenance or replacing parts, the forged steel globe valve must be tested and calibrated to verify that its function is back to normal. The test should be performed by pressurizing the system and observing the performance of the valve under operating conditions to ensure that there are no leaks, that the stem movement is smooth, that the valve can be fully opened and closed, and that the flow rate can be regulated as intended by the design. Regular testing and calibration not only ensures the reliable operation of the valve, but also helps to detect and deal with abnormal problems in a timely manner to prevent potential safety hazards.

Record and Maintain Logs

Detailed records and log management are also important for the long-term maintenance of forged steel globe valves. Recording the details of every inspection, cleaning, lubrication, adjustment, replacement and test not only helps to track the history and performance of the valve, but also provides a valuable reference for future maintenance. These records help identify recurring problems, optimize maintenance plans, and ensure that operations meet safety and industry standards.

Seek Technical Support

For complex maintenance tasks or internal problems that are difficult to solve, it is recommended to seek the help of professional technicians in time. Professionals not only have the necessary tools and equipment, but also have the experience and expertise to diagnose and repair problems quickly and effectively, avoiding secondary damage caused by improper operations. If your forged steel globe valve requires more complex maintenance or you are not sure how to operate it, please contact our professional team and we will provide you with high quality technical support and service.

Sum up

Through regular inspection, cleaning, lubrication, fastening, testing, and professional support, forged steel globe valves maintain long-term performance and reliability in a variety of industrial systems. Effective maintenance not only extends the service life of the valve, but also ensures the safe operation of the entire system. If you need further advice or support, please feel free to contact us.