Diagnostic Analysis

Typical failure modes (examples) that are easily identified with V-MAP^® G3

Valve Failures:

• Failure to operate on demand – Seizures
• Operating Time Issues
• Galling of obturator or stem
• Stem Issues – Alignment / Sealing Surface Deterioration
• Positioning Issues
• Operating Cycles Torque Changes - Trending
• Through-Seat Leakage Detection / Quantification / Trending
• Packing Issues - Over-Tightened / Deteriorating

Operator Failures:

• Failure to operate on demand - Seizures
• Operating Cycles Torque Changes - Trending
• Spring Issues – Breaks / Fatigue
• Positioning Issues
• Sizing Issues / Loss of performance
• Cylinder Integrity Issues
• Pressure Leaks
• Pneumatic / Hydraulic Pressure Supply Issues
• Blocked Solenoid / Cylinder Exhaust

Margin trending of in-line performance against prescribed standards facilitates a “predictive” approach to maintenance.