Application and selection overview
Check pump type, displacement, pressure, flow, rotation and mounting interfaces.
Key parameters to confirm
| Item | Information to provide |
|---|---|
| Pump type and displacement | Gear, vane, piston or variable pump, displacement and adjustment range. |
| Pressure and flow | Normal and peak pressure, required flow, volumetric efficiency and duty cycle. |
| Drive | Input speed, rotation, shaft, flange, coupling and motor power. |
| Ports and controls | Suction, pressure and drain ports, positions, control method and valve configuration. |
| Fluid and environment | Fluid type, viscosity, temperature, cleanliness, filtration, altitude and contamination. |
RFQ checklist
- Provide the full nameplate, photographs from all sides and a port/dimension drawing.
- Describe the machine, circuit, normal and peak pressure, flow and duty cycle.
- Confirm whether rotation is viewed from the shaft end or pump end.
- List controller, sensors, manifold, seal material and flushing requirements.
Common mistakes and risks
- Confusing rated, peak and system relief pressures.
- Incorrect rotation, shaft or port position preventing installation or causing damage.
- Installing a new pump in a contaminated circuit without flushing, filtration or air removal.
Frequently asked questions
Can a higher-flow pump be substituted?
It can change speed, power, heat and valve capacity, so the complete system must be reviewed.
Does pump noise always mean pump failure?
Noise can also come from inlet restriction, cavitation, air, incorrect fluid, coupling misalignment or contamination.
What is needed for a variable-pump replacement?
In addition to the pump model, provide controller code, pressure/flow settings, manifold and electrical interface.
Next step
Send the full model, nameplate photographs, pump type, displacement, pressure, flow, speed, rotation, ports, fluid, quantity and destination.
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