Preventative Maintenance for Long-Term pump Storage

Optimizing Pump Storage: Proactive Strategies for Long-Term Maintenance

In the dynamic landscape of industrial operations, ensuring the sustained efficiency of stored pumps is crucial for preventing downtime and mitigating financial losses. This article explores effective long-term pump storage strategies, focusing on preventative maintenance practices to minimize potential damages and bolster overall operational resilience.


Maintaining Pump Efficiency: Proactive Strategies for Long-Term Storage

Effective preventive maintenance is the cornerstone of preserving optimal pump performance. Large industrial plants with diverse pump systems are particularly vulnerable to substantial losses due to unforeseen downtime. The solution lies in maintaining a diverse pump inventory, facilitating swift replacements and minimizing operational disruptions. However, storing pumps presents unique challenges, with the potential for damage even during storage. This article aims to provide actionable insights into maintaining stored pumps effectively, safeguarding against potential issues.


Regular Shaft Rotation: Key to Preventive Maintenance

Regularly rotating the pump shaft is a pivotal preventive maintenance practice. Performing this task every 30 days helps prevent the development of flat spots on bearings and reduces the risk of damage to mechanical seal faces. Simply holding and rotating the shaft once or twice a month significantly contributes to the pump’s longevity and reliability.


Rust Prevention: Shielding Pumps Against Corrosion

Rust poses a common threat to pump systems. Safeguarding exposed metal parts with rust-inhibiting materials is imperative. Applying a protective LPS-3 coat on the coupling and shaft helps prevent corrosion. This coating forms a transparent wax film, acting as a shield against air, moisture, and corrosive elements. Thoroughly cleaning the rust inhibitor from the shaft and coupling before installation is essential.


Climate-Controlled Storage: Creating Optimal Conditions for Pump Longevity

Selecting the right storage environment significantly impacts pump performance. Avoid storing pumps in areas with excessive equipment, as this can lead to condensation and increased humidity, fostering corrosion. Maintaining pumps in a controlled, room-temperature, and dry environment is highly recommended. Extreme temperatures and excessive vibrations, often caused by heavy machinery, should be avoided. If floor storage is unavoidable, placing pumps on wooden pallets helps absorb vibrations and ensures longevity.


Oil-Free Storage: Preserving Pump Integrity

Refrain from filling pumps with oil during storage; instead, keep them dry. Adding oil during storage may lead to separation and freezing, causing severe damage. Moreover, oil presence can result in non-compatibility issues, such as O-ring swelling and leakage. Oiling is only necessary during installation, serving to reduce friction and heat.


Troubleshooting a Newly Installed Pump

Insufficient Fluid Flow

  • Ensure the pump is powered on to enable power transmission from the mains supply to the motor.
  • Prime the pump by filling it with the designated fluid, eliminating any air within the pump and suction pipe.
  • Confirm the motor’s rotation direction; reverse power cables if necessary. Verify the pump shaft’s rotation aligns with the indicated arrow on the pump casing.
  • Remove blockages causing suction line clogs.
  • Open closed suction and discharge valves.
  • Clean clogged filter/check valves.
  • Adjust suction lift if excessively high.

Excessive Noise Production

  • Open the pump interior and eliminate impeller blockages.
  • Ensure sufficient lubrication for the bearings.

Pump Overheating

  • Confirm fluid flow through the pump for effective cooling.
  • Align the shaft and coupling properly to prevent overheating.