Flojet Duplex II Bypass Pump – 12V (Part No: D3131V1311AR)

Product Overview

The Flojet Duplex II Bypass Pump – D3131V1311AR is a compact, self-priming diaphragm pump designed for continuous flow applications requiring enhanced chemical resistance. With a bypass pressure of 3.4 bar and a maximum flow of 5.7 L/min, this 12V pump is built for open-loop systems, recirculation setups, and low-pressure fluid transfer tasks.

Equipped with Viton diaphragm and check valve components, it is well-suited for handling aggressive chemicals, oils, and solvents. The internal bypass, integrated backflow preventer, and polypropylene housing offer a reliable, corrosion-resistant design that fits seamlessly into compact installations across industrial, automotive, and chemical processing applications.

Key Features

✅ 5.7 L/min maximum flow – Ideal for light-to-medium continuous-duty use
✅ 3.4 Bar bypass pressure – Maintains steady, regulated output
✅ 12 Volt DC, 7.0 Amps – Mobile and energy-efficient operation
✅ Viton diaphragm & check valve – Superior chemical and solvent resistance
✅ No pressure switch – Designed for open-loop or recirculating systems
✅ Self-priming up to 2.4 metres – Allows versatile above-tank installation
✅ 3/8" NPTF ports – Compatible with standard hose and fitting systems
✅ Integrated backflow preventer – Protects against reverse fluid movement
✅ Polypropylene pump housing – Lightweight, durable, and chemical-resistant
✅ Internal bypass – Reduces pressure spikes and prolongs system life

Why Choose This Product?

The Flojet D3131V1311AR is purpose-built for continuous-duty chemical transfer in systems where demand-based switching is not required. Its Viton construction makes it ideal for solvent handling, ink transfer, coolant circulation, or closed-loop chemical systems. Durable, dependable, and compact — this pump delivers consistent results where reliability is critical.

Order Now

Looking for a reliable, chemically compatible bypass pump? Choose the Flojet Duplex II 12V Bypass Pump – D3131V1311AR today. Contact Flowjet Cleaning Equipment for technical advice, pricing, or bulk ordering options.