Antlia AOD 300 — Air Operated Double Diaphragm Pump (1 inch)

Antlia AOD 300 — 1 Inch AODD Pump

The Antlia AOD 300 is a 1 inch Air Operated Double Diaphragm (AODD) pump built for reliable, chemical-safe fluid transfer in demanding industrial environments. Available in four body materials and two diaphragm options, it handles everything from aggressive acids to food-grade liquids.

Key Features

• Self-Priming: Automatically primes with up to 3 metres of suction lift — no manual priming needed
• Dry-Run Safe: Runs without fluid without damage — safe for intermittent or batch processes
• Explosion-Proof: Air-powered only — no electrical components, safe for flammable solvents and chemical zones
• Handles Solids: Passes solids up to 3.4 mm — suitable for slurries and viscous fluids
• Zero-Leak Design: Sealless construction — no mechanical seals to fail or leak
• Variable Flow: Adjust output by regulating air pressure (1–6 kg/cm²)
• Easy Maintenance: Modular design — replace diaphragms and valves without tools

How It Works

The AOD 300 uses compressed air (from a standard factory air compressor) fed through the ¼-inch air inlet. The air alternately pressurises two chambers, each with a flexible diaphragm. As one diaphragm pushes fluid out, the other draws fluid in — creating continuous, pulsating flow. Ball check valves ensure one-directional flow. No electricity required.

Material Selection Guide

• PP (Polypropylene): Acids, alkalis, water-based chemicals — most popular, lowest cost
• PVDF: Aggressive chemicals, chlorinated solvents, HF — highest chemical resistance
• SS 316: Food-grade, pharmaceutical, high-temperature applications
• Aluminium: General industrial use, non-corrosive fluids, compressed air systems