Seko Diaphragm Pumps

Duotek AF0252

The Duotek AF0252 is an air-operated double-diaphragm (AODD) pump. With a 1 1/4" BSP connection and a maximum flow rate of 250 l/min, it offers a versatile solution for chemical dosing and liquid transfer applications; it is easily adjustable thanks to its intuitive controls.

Its design, which contains no electrical components, allows it to be fully submerged in liquid without any loss of performance. It reliably transfers high-viscosity, corrosive, and solids-in-suspension fluids. Its seal-less design allows for dry running up to 6 meters; its fully bolted housing ensures high leak-tightness and safety.

After production, every Duotek pump undergoes a 100% wet test covering dry-running, initial suction, and leak-tightness. Its compact and portable housing simplifies installation, operation, and maintenance; it is available with a transport cart option upon request.

  • 250 l/min Maximum Flow Rate
  • 80 m Maximum Discharge Head
  • 8 bar Maximum Air Pressure

Technical Info

Technical Specifications

Liquid Connections 1 1/4" BSP
Air Connection 1/2" BSP
Maximum Flow Rate 250 l/min
Maximum Air Pressure 8 bar
Maximum Discharge Head 80 m
Maximum Suction Lift (Dry) 5 m
Maximum Suction Lift (Wet) 9,8 m
Maximum Solids Passage 7,5 mm
Noise Level 75 dB
Maximum Viscosity 35,000 cps
Displacement per Stroke 700 cc

Rate this product

This product hasn't been rated yet—be the first to rate it.

Your Score