Welded Ball Valve Maintenance: Common Problems and How to Fix Them

Problem: Leaks are one of the most common issues, often occurring at the valve stem, seals, or seats.

Solution: 

· Inspect the seals and seats for wear or damage. Replace them if necessary.

·If the stem is leaking, replace the packing or lubricate it to reduce friction and ensure proper sealing.

Problem: The valve may become hard to turn or operate, especially in systems with heavy buildup or if the valve has been rarely used.

Solution:

· Clean the valve and remove any dirt or debris that might be obstructing movement.

· Lubricate the stem and actuator to ensure smooth operation.

Problem: The actuator may fail to respond or operate slowly, causing delays or inconsistent valve control.

Solution:

· For electric actuators, check for corrosion or loose wiring in the electrical connections. Clean and reconnect if necessary.

· For pneumatic actuators, inspect air lines and seals for leaks and replace any worn-out seals or fittings.

Problem: Unusual noise or vibration during operation could be a sign of mechanical stress or internal damage.

Solution:

·  Inspect the actuator for loose components or misalignment that may be causing vibrations.

·  Ensure the valve is securely mounted, as improper installation can contribute to unnecessary noise and vibrations.