Flojet Duplex II Bypass Pump – 24V (Part No: D3231B1311AR)

Product Overview

The Flojet Duplex II Bypass Pump – D3231B1311AR is a durable, self-priming 24V diaphragm pump built for low-pressure, medium-flow applications. With a maximum flow rate of 6.1 Lpm and an integrated 3.4 Bar internal bypass, this pump offers smooth, continuous operation without a pressure switch, making it ideal for feeder systems, chemical dosing, and water circulation. Constructed with Buna diaphragm and check valves, a polypropylene housing, and 3/8" NPTF ports, it's compatible with a wide range of fluids.

Key Features

✅ Bypass Pressure: 3.4 Bar (49 psi)
✅ Max Flow Rate: 6.1 Lpm
✅ Voltage: 24 Volt DC
✅ No Pressure Switch: Suitable for continuous flow or externally controlled systems
✅ Self-Priming: Up to 2.4 metres vertical lift
✅ Diaphragm: Buna – durable and chemically compatible for many general-purpose fluids
✅ Check Valve: Buna – reliable sealing and resistance to water and light chemicals
✅ Ports: 3/8" NPTF threaded ports
✅ Integrated Backflow Preventer: Prevents reverse flow and system contamination
✅ Pump Housing: Polypropylene – lightweight and corrosion-resistant

Applications

The Duplex II 24V Bypass Pump is perfect for:
• Fluid recirculation and circulation loops
• Chemical dosing and feeder systems
• Low-pressure cleaning or misting setups
• OEM water and fluid transfer units
• Beverage and liquid handling systems