MP Pumps 21371 FLOMAX Bronze Self-Priming Centrifugal Pump
The FLOMAX line is a self-priming centrifugal pump series built for general industrial, agricultural, and marine transfer duty. Once primed, an internal flapper check valve holds a column of liquid in the suction line so the pump can re-prime on the next start without manual assistance.
Wetted construction is bronze. This model is configured for pedestal. It is sized for a 184TC motor frame.
Always match by the MP Pumps part number 21371 stamped on the unit or listed on your equipment parts diagram, since pump configurations vary by mount type, material, and port size even within the same series.
Key Features
- Self-priming centrifugal design, capable of lifting liquid from several feet below the pump on a dry start
- Internal flapper check valve maintains suction-line prime between duty cycles
- Available in bronze or cast iron construction depending on the model
- PumPak versions are a factory-assembled, run-tested pump end ready to couple to a motor, engine, or hydraulic drive
Applications
- General industrial and agricultural liquid transfer
- Marine bilge, deck wash, and utility transfer service
- Water transfer where self-priming operation is required
- OEM and replacement service on FLOMAX-equipped equipment
Specifications
- Manufacturer: MP Pumps
- Part Number: 21371
- Series: FLOMAX
- Part Type: Pump
- Construction: Bronze
- Mount Type: Pedestal
- Motor Frame: 184TC
Frequently Asked Questions
Q: Does this come with a motor or engine?
Availability varies by listing. PumPak versions are a bare, run-tested pump end for coupling to your own driver; complete units include the motor or engine as noted in the title.
Q: How do I know this is the right pump for my equipment?
Match it by the MP Pumps part number stamped on the unit or listed on your equipment parts diagram. Send us a picture of your pump plate and we will confirm fitment.
Q: What does self-priming mean for this pump?
A self-priming pump can clear air from its own suction line on startup rather than needing the line pre-filled with liquid, using an internal check valve to hold prime between runs.
Q: Can this pump run dry?
No. Running a centrifugal pump dry for more than a few seconds can damage the mechanical seal and impeller. Shut the pump off if it loses prime and will not reprime on its own.