Incorporating improvements to enhance reliability.
Measure bore dimensions to ensure proper interference fits.
The standard follows a logical, step-by-step process that takes a pump from the field, through the repair shop, and back into service.
Dynamic balancing of the impeller assembly reduces operational vibration and extends mechanical seal life. 4. Mechanical Seal and Bearing Installation api 697 pump repair pdf free download
Standardization for balancing, rotor reassembly, field installation, and start-up testing.
Ensuring the casing can still hold pressure. ⚖️ Dynamic Balancing: A Critical Step
Assemble bearings and mechanical seals in a dust-free environment to prevent premature contamination. Incorporating improvements to enhance reliability
Following these standards ensures that a repaired pump performs as reliably as a brand-new unit. 🛠️ The Core Objectives of API 697
Upgrade standard lip seals to magnetic bearing isolators to completely seal out atmospheric moisture and particulate contamination.
Hydraulic thrust loads rise, putting stress on the bearings. Rotor Balancing and Dynamics Ensuring the casing can still hold pressure
Check the gap between the wear rings against original equipment manufacturer (OEM) limits.
Thermal spraying or machining can restore worn shaft journals.
Measuring tolerances, checking for cracks, and detailed reporting.
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