For dual pressurized seals (Plan 53/54), the barrier fluid must be chemically compatible with both the process fluid and the seal face materials. Bearing Housing Optimization
[Incoming Inspection & Decontamination] │ ▼ [Complete Dismantling] │ ▼ [Dimensional & NDT Inspection] ───► [Failure Analysis Report] │ ▼ [Machining & Re-Conditioning] │ ▼ [Dynamic Balancing of Rotor] │ ▼ [Assembly & Cleanliness] │ ▼ [Hydrostatic & Hydrotesting] 1. Receiving, Decontamination, and Visual Inspection
API 697 acts as a comprehensive framework for the inspection, disassembly, repair, and reassembly of heavy-duty process pumps. It bridges the gap between original equipment manufacturer (OEM) manuals and the rigorous field realities of a refinery or chemical plant. Core Objectives of the Standard
The standard is exceptionally practical. Rather than just providing abstract rules, API RP 697 is filled with pictures, sketches, tables, and checklists designed to guide the user through successful pump repairs. api 697 pump repair pdf free download
1. Clearing up the Confusion: API 697 vs. Real Pump Standards
Overhauling a pump almost always involves repairing or replacing the mechanical seal. This standard dictates those systems. The Legality of "Free Downloads"
Precision during teardown prevents further damage to critical components. For dual pressurized seals (Plan 53/54), the barrier
Rotor imbalance is a leading cause of premature pump failure.
[Decontamination] ➔ [Inspection & NDT] ➔ [Machining & Resleeving] ➔ [Balancing] ➔ [Reassembly] 1. Decontamination and Disassembly
Ensure the supporting seal auxiliary systems (such as API Plan 11, 21, 32, or 53) are thoroughly flushed and clean. It bridges the gap between original equipment manufacturer
Before breaking the piping joints, technicians must document the pump's current state.
Using unauthorized documentation can void equipment warranties and violate facility safety audits.
