Root Cause Analysis for Reciprocating Compressors

Specialized Root Cause Analysis programs for Reciprocating Compressor Reliability & Maintenance.

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47% Reduction in unplanned downtime

85% Faults detected before failure

3-6mo Average fault lead time

5:1 Typical program ROI

Why it matters

Key Benefits

Repeat Failure Elimination

Structured root cause analysis of reciprocating compressors failures identifies the physical, human, and systemic causes behind failures of the pistons, cylinders, suction and discharge valves, crossheads, and crankshaft. Addressing root causes eliminates repeat failures rather than simply replacing broken parts.

Corrective Action Effectiveness

RCA for reciprocating compressors produces specific, measurable corrective actions with assigned owners and completion dates. Tracking corrective action implementation ensures that investigation findings translate into actual reliability improvements.

Organizational Learning

Documenting RCA findings for reciprocating compressors failures creates a knowledge base that prevents similar failures across the fleet. Sharing lessons learned across sites and equipment types multiplies the value of each investigation.

Context

Challenge & Approach

The Reliability Challenge

Valve plate and spring fractures are labeled as fatigue failures without investigating whether liquid carryover, pressure pulsation resonance, or incorrect spring pre-load initiated the fatigue. Piston ring and rider band failures attributed to normal wear may result from inadequate cylinder lubrication, gas composition changes, or rod alignment issues. Crosshead bearing failures blamed on bearing material are often caused by foundation settlement or frame distortion. Rod packing leakage increases are accepted as wear when thermal distortion or rod surface damage may be the root cause.

Our Approach

We preserve all failed components including valve plates, springs, seats, piston rings, rider bands, packing rings, and bearing shells for laboratory examination. Valve plate fracture surfaces are analyzed metallurgically to distinguish fatigue, impact, and corrosion-assisted cracking. Piston ring and rider band wear patterns are photographed and measured to identify alignment issues or gas distribution problems. Operating data—cylinder pressures, temperatures, rod drop measurements, and vibration records—is analyzed for the period leading up to failure. We review maintenance records for recent valve work, ring replacement, or alignment activities that may have introduced errors. Fishbone diagrams organize potential causes by category. The RCA report provides verified root cause determination with specific corrective actions.

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Root Cause Analysis for Reciprocating Compressors

Key Benefits

Repeat Failure Elimination

Corrective Action Effectiveness

Organizational Learning

Challenge & Approach

The Reliability Challenge

Our Approach

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