4.5 GPM - Industrial Fluid Transfer Pump

Flojet Q452F-118S-2P is a VersiJet Series pump engineered for applications such as liquid transfer, spraying, cooling, circulation, filtration, and dispensing. Each pump is constructed with a glass-filled polypropylene upper housing, coated motor, co-molded Santoprene diaphragm, and EPDM check valves and seals to maximize durability and service life. The integrated pressure switch ensures automatic operation, while the self-priming design allows for up to 8 feet of dry lift. VersiJet pumps can run dry without damage, and their quiet, smooth performance minimizes disruptions in busy work areas. Quick-connect ports streamline installation and maintenance, so operators can attach or remove hoses and fittings quickly without tools for fast pump swaps or service. It delivers up to 4.5 GPM and handles a maximum pressure of 60 PSI. This pump is self-priming up to 8 feet, and it includes a built-in pressure switch that automatically shuts off the pump when system pressure reaches 60 PSI. Upgrade your pumping system today and keep your operation flowing without interruptions!

Benefits:

• Self-Priming: Draws liquid efficiently with up to 8 feet (2.4 meters) of dry prime, allowing the pump to pull fluid from the source without manual priming.
• Runs Dry Without Damage: Designed to operate safely even when the fluid supply is interrupted, meaning the pump will not suffer internal damage if left running without liquid, giving operators added protection from accidental dry runs and helping prevent costly downtime.
• Integrated Excessive Pressure Protection: A pressure switch shuts off the pump automatically when system pressure reaches 60 PSI. This feature helps prevent over-pressurization, protecting downstream equipment and extending pump life by minimizing unnecessary wear.
• Quiet, Efficient Operation: Reduces noise and energy usage through a four-chamber diaphragm design and noise-dampening baseplate.
• Reliable Performance: Designed for industrial fluid transfer and spraying in harsh environments.
• Long-Lasting Chemical-Resistant Construction: Features glass-filled polypropylene housing and EPDM seals for enhanced chemical resistance and durability.
• Easy Installation: Quick-connect fittings speed up maintenance and replacement.

Applications:

• Liquid Transfer
• Spraying
• Cooling,
• Circulation
• Filtration
• Dispensing

Specifications:

• Model: Q452F-118S-2P
• Open Flow Rate: 4.5 GPM (17 LPM)
• Pressure Switch Cut Off: 60 PSI (4.1 BAR)
• Max Operating Pressure: 60 PSI (4.1 BAR)
• Max Inlet Pressure: 30 PSI (2.2 BAR)
• Self-Priming Capability: Up to 8 ft (2.4 m)
• Run-Dry Capable: Yes
• Nominal Voltage: 12 VDC
• Voltage Range: 18 VDC-27.2 VDC
• Max Current Draw: 8 Amps @ 60 PSI
• Leads: 12" (305mm), 14 AWG
• Wire Connection: Stripped Wire
• Duty Cycle: Intermittent
• Port Fittings: 2 x 3/4" (19 mm) straight hosebarb
• Fluid Temperature Range: 32ºF – 140ºF (0ºC – 60ºC)
• Internal Bypass: Yes
• Self-Priming Capability: Up to 8ft (2.4m) Dry Prime
• Run-Dry Capable: Yes
• Materials:
  • Wetted Path:
    • Upper Housing: Glass-Filled Polypropylene
    • Lower Housing: Cast Aluminum
    • Diaphragm: Santoprene
    • Check Valve Retainer: Polypropylene
    • Check Valves: EPDM
    • Switch Diaphragm: EPDM
    • Bypass Diaphragm: EPDM
  • Pump Head:
    • Seals: EPDM
    • Fasteners: Stainless Steel
  • Baseplate:
    • Nylon
    • Rubber Feet
• Dimensions: 10x4x4" (254x102x102mm)
• Weight: 6.3 lbs. (2.9 kg)
• Mounting: Horizontal (preferred) or vertical with pumphead down
• Certifications: UR listed; IPX6 rated
• Replaces Flojet Models:
  • 04300343
  • R4300343

Ensuring Optimal Performance: Installation & Operation

Proper installation and operation are crucial for maximizing the life and efficiency of your Flojet VersiJet pump.

Mounting the Pump

Securely mount the pump to a solid, dry surface in an area with adequate ventilation, using the rubber dampening feet to absorb vibrations. The pump can be mounted horizontally or vertically, with the pump head facing downwards.

Notes:

• The pump must be installed in a dry, ventilated area. If mounted within an enclosure, provisions to cool the motor may be necessary.
• If installed outdoors, ensure the pump is shielded from water, dust, sunlight, and wash-down spray. Avoid overtightening fasteners to allow the rubber feet to function correctly.

Installing the Plumbing

Use only flexible, braided hose rated for high pressure that matches the included port fittings. Do not use rigid or plastic piping to connect the pump, as these materials can transmit vibration and stress, resulting in louder operation.

• Securely attach hoses with appropriate clamps.
• Insert the o-ring side of the fittings into the pumphead first, then push in the retaining port clips to secure them. 

For optimal protection and performance, install a Flojet 40 Mesh strainer on the inlet side of the pump. An arrow on the pumphead indicates the correct flow direction.

Connecting to a Power Source

Ensure that all electrical wiring is performed by a qualified and competent electrician, adhering to all local and national electrical codes. Select the proper wire gauge and fuse size based on the maximum current draw of your specific pump model, the wire length, and relevant regulatory standards. Refer to the pump label for precise current draw specifications. When wiring, ensure the positive and negative leads are connected to the power source as indicated on the label for safe operation.

Initial Startup & Operation

Before startup, ensure the inlet line connected to the pump inlet is fully submerged in the fluid. With the power on and the discharge line open, allow the pump to prime. If your pump features an on-demand pressure switch, it will activate when the discharge line is open and deactivate once the line is closed and the switch shut-off pressure is achieved.

Note: These pumps are intended for intermittent duty. If the pump overheats, its thermal protection will automatically shut it off until it has cooled sufficiently, then reset and restart.

Tips For Spray Applications

In spraying applications, the pressure supplied by the pump is generally dependent on the size of the spray nozzle. If the orifice of the nozzle is too small, the pump’s pressure switch will repeatedly turn on and off, causing a pulsating flow. Running the pump in this rapid start/stop pattern, or outside of the recommended duty cycle, can cause the internal thermal breaker to trip or lead to early motor failure due to excessive heat. To avoid these issues, always select a spray nozzle size that matches the system requirements.

Extending Pump Life: Maintenance Guidelines

Regular maintenance helps prolong the life of your Flojet VersiJet pump and ensures consistent performance in your car wash.

During Season

Perform periodic monthly checks on all electrical, hydraulic, and plumbing connections for any signs of looseness, damage, or unusual conditions. Inspect the inlet strainer and clean it as needed to prevent clogs. If the pump is used to transfer liquids other than water, it should be thoroughly flushed with clean water after each use. This prevents chemical buildup and corrosion.

Off-Season & Winterizing

For car washes in regions experiencing freezing temperatures, proper winterizing is essential. First, drain the pump completely by removing the inlet line from the fluid source and running the pump until no more fluid dispenses. Then, introduce an appropriate anti-freeze solution by running the pump until it is filled. This is critical to prevent any fluid from freezing inside the pump, as expanding ice can crack the pump housing or severely damage internal components, leading to costly repairs.