pump replacement checklist
A pump replacement checklist covering duty point, fluid, interfaces, materials, motor data, and controls.
Capture required flow, head or pressure, operating range, elevation, suction conditions, and whether the system has variable demand. The replacement must be evaluated at the actual duty point, not only at a nameplate maximum.
Record fluid name, concentration, viscosity, temperature, solids, gas content, corrosiveness, cleanliness, and any change in fluid over the equipment life. These details influence materials, seals, lubrication, and pump construction.
Measure or document the connection type and size, shaft or coupling arrangement, mounting orientation, footprint, rotation, and available service clearance. A dimensional match does not by itself confirm hydraulic or material suitability.
Record motor power, voltage, phase, frequency, full-load current, enclosure, speed, starter or drive, protection, and control signal. Confirm that the replacement motor and pump can work with the existing controls and protection.
Use the equipment maker’s replacement or spare-parts guidance and obtain a written selection when the service is critical, the fluid is hazardous, or the available information is incomplete. Keep the original model, serial, and application record with the request.