The Verderair VA20 OD is a compact, air operated double diaphragm (AODD) pump with suction tube suitable for emptying 200 liter drums.

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Verderair air operated diaphragm pumps are excellent drum pumps. For the emptying of small barrels, containers, canisters and drums (approx. 200 litres) of all kind of chemicals such as acids or lyes, a double diaphragm pump is a very good alternative to a conventional rod drum pump. Diaphragm pumps can pump corrosive, viscous and abrasive fluids with ease.

Diaphragm Pumps

The Verderair diaphragm pumps are the best solution for transfer applications that require more than just fluid to be handled. The range is excellent for viscous or sticky media, slurry and solids. The Verderair diaphragm pump series offers diaphragm pumps, varying in material (metallic, non-metallic, conductive) to drive principle (electric, pneumatic). Applications are found in chemical industry, pharmaceutical industry, solar power industry, waste water treatment, ceramic slurry, and many more. Special models are available for ATEX, food and pharma applications.

Max. flow 61 l/min
Max. discharge pressure 7 bar
Air conn. 1/4" BSP/NPT
Liquid conn. 3/4" BSP/NPT
Maximum suction lift (dry) 4,5 m wc
Certificates ATEX 
Maximum suction lift (wet) 7,6 m wc
Max. particle size 2,5 mm
Viscosity 5000 mPa.s
Max. temperature 107 °C
Materials liquids parts Aluminium, Stainless Steel
Materials valves seats Acetal, Polypropylene, Stainless Steel, Kynar
Materials valve balls Buna-N, Santoprene, Stainless Steel, Hytrel, PTFE, Viton
Materials diaphragms PTFE (2 piece), PTFE (overmolded), Hytrel, Buna-N, Santoprene, Viton
Material center section Polypropylene