Hydraulic feedback failure analysis of subsurface pump plungers typically includes determining the root cause of the plunger failure and appropriate corrective actions. The following are some common factors to consider during failure analysis: 1. Material Selection: Evaluate the material used for the plunger construction. Improper material selection or poor material quality can lead to premature wear, corrosion or fatigue failure. Evaluate whether the plunger material is compatible with the operating conditions, such as the fluid being pumped and the temperature and pressure range. 2. Surface finish and coating: Check the plunger for surface finish and any applied coating. Rough or uneven surfaces accelerate wear and increase friction, which can lead to failure. Inadequate or worn coatings can also affect plunger durability. Consider the quality and suitability of the surface finish and coating for the specific application. 3. Hydraulic oil contamination: Investigate the quality and cleanliness of the hydraulic oil used. Contaminants such as dust, debris, water or abrasive particles can damage the plunger surface causing scoring, pitting or corrosion. Analyze filtration and maintenance practices to ensure proper fluid cleanliness and contamination control. 4. Hydraulic system design and operation: Evaluate hydraulic system design and operating parameters, including flow, pressure levels, and temperature conditions. Excessive pressure, flow fluctuations, or temperature changes can cause plunger failure. Verify that the system is within the manufacturer's recommended operating limits and that there are no abnormal conditions. 90-R-100-KP-1-NN-80-P-3-S1-D-04-GBA-38-38-24 90R100KP1NN80P3S1D04GBA383824 90-R-100-KP-1-NN-80-P-3-S1-D-03-GBA-38-38-24 90R100KP1NN80P3S1D03GBA383824 90-R-100-KP-1-NN-80-P-3-F1-F-03-GBA-26-26-24 90R100KP1NN80P3F1F03GBA262624 90-R-100-KP-1-NN-80-P-3-F1-E-03-GBA-17-17-24 90R100KP1NN80P3F1E03GBA171724 90-R-100-KP-1-NN-80-P-3-F1-E-03-GBA-14-35-24 90R100KP1NN80P3F1E03GBA143524 90-R-100-KP-1-NN-80-P-3-C7-F-03-GBA-38-38-24 90R100KP1NN80P3C7F03GBA383824 90-R-100-KP-1-NN-80-P-3-C7-E-03-GBA-26-26-24 90R100KP1NN80P3C7E03GBA262624 90-R-100-KP-1-NN-80-L-4-S1-F-03-GBA-35-35-24 90R100KP1NN80L4S1F03GBA353524 90R100-KP-1-NN-80-L-4-S1-F-03-GBA-35-35-24 90R100KP1NN80L4S1F03GBA353524 90-R-100-KP-1-NN-80-L-4-S1-F-02-GBA-20-20-24 90R100KP1NN80L4S1F02GBA202024 5. Improper installation or assembly: Evaluate the plunger installation and assembly procedures. Improperly aligned, incorrectly torqued or misaligned components can cause uneven loading and increased stress on the plunger, which can lead to failure. Review the installation instructions and ensure proper procedures are followed during assembly. 6. Fatigue and stress analysis: Perform fatigue and stress analysis on the plunger design. Consider the operating conditions and duty cycles experienced by the plunger. Excessive stress, insufficient design factors, or fatigue-prone areas can all lead to failure. Evaluate plunger designs to understand stress concentration points, potential weak points, and fatigue failure mechanisms. 7. Operational Factors: Consider any operational factors that could lead to plunger failure. These may include excessive or abnormal operating conditions such as overloading, cavitation or shock loading. Check the pump's performance history and any abnormal operating conditions that may affect the integrity of the plunger. 8. Maintenance specifications: review the maintenance specifications of underground pumps. Improper maintenance, such as infrequent lubrication, improper cleaning or lack of inspection, can lead to accelerated wear and potential failure. Ensure proper maintenance intervals, procedures and lubrication are followed. 9. Quality Control and Manufacturing Process: Evaluate the quality control and manufacturing process of the plunger. Inadequate manufacturing techniques, lack of quality checks, or deviations from specification can result in a sub-par plunger prone to failure. Check the manufacturing process and any quality control measures. 10. Vibration analysis: Check the vibration characteristics of the pump during operation. Excessive vibration can cause increased stress and fatigue on the plunger, which can lead to failure. Perform a vibration analysis to determine any resonant frequencies, unbalanced conditions, or misalignment that may be causing excessive vibration. 11. Wear pattern and surface damage: Check the failed plunger for wear pattern and surface damage. Different wear modes, such as abrasive, adhesive or erosive wear, can provide clues about the root cause of the failure. Evaluate the extent and location of wear to determine if it is related to specific operating conditions or material compatibility issues. 12. Lubrication and Cooling: Evaluate the effectiveness of the plunger lubrication and cooling system. Inadequate lubrication or cooling can lead to increased friction, heat buildup and accelerated wear. Make sure that the lubrication system is working properly and that the cooling mechanism is adequate to maintain proper operating temperatures. 13. Operating and Environmental Conditions: Consider the specific operating and environmental conditions under which the pump will operate. Factors such as high or low temperatures, corrosive environments, abrasive fluids, or high pressure differentials can cause plunger failure. Evaluate whether the plunger is designed to withstand these conditions and whether any additional protective measures are required. 90-R-100-KP-1-NN-80-L-3-S1-F-03-GBA-38-38-24 90R100KP1NN80L3S1F03GBA383824 90R100-KP-1-NN-80-L-3-S1-F-03-GBA-38-38-24 90R100KP1NN80L3S1F03GBA383824 90-R-100-KP-1-NN-80-L-3-F1-F-03-GBA-35-35-24 90R100KP1NN80L3F1F03GBA353524 90-R-100-KP-1-NN-80-L-3-C7-F-03-GBA-35-35-24 90R100KP1NN80L3C7F03GBA353524 90-R-100-KP-1-NN-60-S-4-S1-E-03-GBA-35-35-20 90R100KP1NN60S4S1E03GBA353520 90-R-100-KP-1-NN-60-S-4-S1-E-00-GBA-23-23-24 90R100KP1NN60S4S1E00GBA232324 90-R-100-KP-1-NN-60-S-4-C7-E-03-GBA-42-42-24 90R100KP1NN60S4C7E03GBA424224 90-R-100-KP-1-NN-60-S-3-T2-E-03-GBA-42-42-24 90R100KP1NN60S3T2E03GBA424224 90-R-100-KP-1-NN-60-S-3-F1-E-02-EBC-26-26-20 90R100KP1NN60S3F1E02EBC262620 90-R-100-KP-1-NN-60-S-3-F1-E-00-GBA-17-17-20 90R100KP1NN60S3F1E00GBA171720 14. Maintenance and inspection records: Check the maintenance and inspection records of pumps and plungers. Look for any irregularities, missed inspections, or improper maintenance practices that could lead to failure. Make sure to follow proper maintenance procedures such as regular cleaning, inspection and replacement of components. 15. Failure Mode Analysis: Determine the specific failure mode exhibited by the plunger, such as cracking, deformation, scoring or fatigue failure. Analyze failure modes to determine if they are consistent with known failure mechanisms, or if they indicate a unique problem. This analysis provides insight into the root cause of failures. 16. Historical Data and Comparisons: Compare the failed plunger to any failures or performance issues previously observed in similar pumps. Look for commonalities or patterns that may point to systemic issues, such as design flaws or manufacturing inconsistencies. Keep in mind that failure analysis can be a complex process that may require the involvement of experts or specialized testing and analysis techniques. Collecting comprehensive data, conducting a thorough inspection and considering all relevant factors will help determine the root cause of plunger failure and take appropriate corrective action.