Flojet 4100-505 12V Diaphragm Pump – 14 L/min | Agricultural & Spray Equipment

Flojet 4100-505 – 12V Self-Priming Diaphragm Pump

The Flojet 4100-505 is a reliable 12-volt diaphragm pump delivering 14 L/min open flow, widely used across agricultural and industrial spray applications. A common fitment on Hardi 12V spray equipment, it's built for field-ready performance with minimal maintenance.

Fitted with Viton check valves and Santoprene diaphragms, this pump handles a broad range of liquid types with no metal contact with the pumped liquid — ideal for chemical transfer and spray applications.

Key Features

• Self-priming – Can be located above or below the liquid level (not submersible)
• Run-dry safe – Handles liquids up to 54°C without damage
• No metal contact with liquid being pumped
• Ball bearing drive throughout pump and motor for extended service life
• Compact design with plug-in port fittings for easy installation
• Permanent magnet motor with low current draw and long-life brushes
• Ideal for use with a pressure relief valve

Specifications

• Voltage: 12V DC
• Open Flow Rate: 14 L/min
• Diaphragm Material: Santoprene
• Check Valves: Viton
• Max Liquid Temperature: 54°C
• Mounting: Vertical (motor on top) or horizontal

Note: For vertical mounting, ensure the motor is positioned on top to prevent water ingress into the motor chamber in the event of a leak.