Flojet Q451F-118S-2P-5/8 MPU Pump 12V 4.5 GPM Industrial Transfer Pump
The Flojet Q451F-118S-2P-5/8 MPU Pump is a high-performance 12V industrial diaphragm pump engineered for reliable fluid transfer, circulation, spraying, cooling, and dispensing applications. Designed with a durable 4-chamber diaphragm system, this pump delivers up to 4.5 GPM flow while maintaining efficient and quiet operation. Its self-priming capability and run-dry protection make it ideal for demanding commercial and industrial environments where dependable performance matters.
Built with a glass-filled polypropylene housing, Santoprene diaphragm, and EPDM valves and seals, the pump provides excellent chemical resistance and long service life. The integrated thermal motor protection and internal bypass system help maintain safe and consistent operation under varying conditions. Quick-connect hose barb fittings simplify installation and maintenance, making the Flojet VersiJet series pump a dependable solution for fluid handling systems.
Whether used in industrial processing, agricultural spraying, cooling circulation, filtration systems, or general liquid transfer, the Flojet Q451F-118S-2P offers strong pressure performance, efficient flow delivery, and long-lasting durability for professional applications.
Key Features
- High-flow 4.5 GPM diaphragm pump performance
- 12V DC operation for mobile and industrial systems
- Self-priming up to 8 feet dry lift
- Run-dry capability without pump damage
- Quiet and efficient 4-chamber diaphragm design
- Heavy-duty coated motor with thermal protection
- Internal bypass for smooth pressure control
- Quick-connect port system for fast installation
- Chemical-resistant Santoprene diaphragm and EPDM valves
- Durable glass-filled polypropylene housing
Applications
- Industrial fluid transfer
- Agricultural spraying systems
- Cooling and circulation systems
- Filtration equipment
- Fluid dispensing systems
- Water transfer applications
- Chemical handling systems
- Portable pumping equipment
- Commercial washdown systems
- Industrial processing operations
Specifications
- Manufacturer: Flojet
- Model Number: Q451F-118S-2P-5/8 MPU
- Pump Type: Industrial diaphragm pump
- Flow Rate: 4.5 GPM (17 LPM)
- Maximum Operating Pressure: 60 PSI
- Pressure Switch Cut-Off: 60 PSI
- Voltage: 12 VDC
- Voltage Range: 9 VDC – 13.6 VDC
- Maximum Current Draw: 14 Amps
- Port Size: 5/8 inch MPU
- Port Connections: Quick connect hose barb fittings
- Self-Priming Capability: Up to 8 ft dry prime
- Maximum Inlet Pressure: 30 PSI
- Fluid Temperature Range: 32°F to 140°F
- Internal Bypass: Yes
- Run Dry Capability: Yes
- Duty Cycle: Intermittent
- Diaphragm Material: Santoprene
- Valve Material: EPDM
- Housing Material: Glass-filled polypropylene and cast aluminum
- Motor Protection: Thermal overload protection
- Pump Design: 4-chamber diaphragm system
FAQ Section
What type of fluids can the Flojet Q451F-118S-2P pump handle?
This pump is designed for a wide range of industrial and commercial fluids compatible with Santoprene and EPDM materials, including water-based solutions, cooling fluids, and certain chemical transfer applications.
Is the Flojet Q451F-118S-2P suitable for continuous-duty operation?
The pump is designed for intermittent duty applications. Proper operating cycles and ventilation are recommended for long service life.
Does this pump require external priming before operation?
No. The pump features a self-priming design capable of lifting fluids up to 8 feet without manual priming.
Can the pump operate without liquid flow?
Yes. The run-dry capable diaphragm design allows temporary dry operation without damaging internal components.
What makes the 4-chamber diaphragm design beneficial?
The 4-chamber system helps provide smoother flow, reduced pulsation, quieter operation, and improved pressure consistency.
What industries commonly use this Flojet pump?
This pump is widely used in industrial processing, agriculture, fluid handling, filtration, cooling systems, and commercial dispensing applications.
Note: This item is 'build to order'. Please contact us for lead time.
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