How to Maintain & Clean a Ball Valve? – Industrial Maintenance Guide for Long Valve Life

Step-by-Step: How to Maintain & Clean a Ball Valve

Step 1: Isolate the Valve

• Shut off the line and depressurize the system
• If possible, drain the media from both ends of the valve
• Tag the system for safety (LOTO in hazardous environments)

Step 2: Disassemble the Valve

For 2-piece / 3-piece valves:

• Use a wrench to remove body bolts
• Detach the end connections and gently remove the ball
• Keep all gaskets, seats, and O-rings safely aside

Step 3: Clean the Internal Components

• Wipe down the ball, body cavity, seats, stem, and seals
• Use a soft cloth or brush with mild degreaser or media-safe solvent
• For sticky or chemical deposits, use warm water and PTFE-safe cleaner

Step 4: Inspect for Damage or Wear

• Scratches or grooves on the ball or seats
• Deformed or cracked O-rings and seals
• Rust or corrosion (especially on CS or brass valves)
• Stem packing wear or leaks