Blagdon B15 PTFE Diaphragm Pump

  • Max. Capacity 48 l/min

  • Max. Pressure 7 bar

  • Max. Viscosity 5000 cP

  • Temperature Range Up to 100°C PTFE & Conductive PTFE

Blagdon B15 PTFE Diaphragm Pump

Up to 48 l/min

1/2" Air Operated Diaphragm Pump

PTFE Construction suitable for chemical use

Blagdon Air-Operated Double Diaphragm (AODD) Pumps provide high performance, reliable solutions for your pumping needs. They specalise in extreme condition environments and applications...keeping your process moving both above and below ground. Their AODD pumps have long been recognised as the "work horse" of the industry for handling difficult liquids at relatively low pressures and flows. The range of applications is virtually limitless!

The pump chambers are alternatively filled and emptied by drawing fluid in through a common (suction) inlet, and out through a common (discharge) outlet. The diaphragms in each chamber are linked by a common shaft, so that they move backwards and forwards in unison. Compressed air is directed by 
the air valve alternatively, behind each diaphragm, to power discharge strokes. Pump speed, fluid output
and pressure (or head) is controlled by increasing or decreasing the flow of compressed air to the pump.

Common applications:
Aggressive & hazardous chemicals
For use in Atex areas/zones
When liquid to metal contact is not acceptable

When electrical power is not available
Noise sensitive areas


Pump type: Air Operated Double Diaphragm Pump
Control: Valve in air inlet (not included) 
Materials: PTFE casing (see options)
Fluid Connections: 1/2" (see options)
Max Solid diameter: 2mm
Max Flow rate: 48 litre/min
Displacement: 0.075 litres/stroke
Max Discharge pressure: 7 bar
Air Inlet: 1/4" BSP(F) or 1/4" NPT(F)
Pump weight: approx 16kg


  • Simple construction, easy to maintain & control
  • Available in virgin and conductive PTFE
  • Chemically inert
  • Flanged end connections
  • ATEX approved - intrinsically safe
  • Reliable, proven pneumatic air valve
  • Strong, robust design
  • Manufactured in Shannon, Ireland


Casing materials: PTFE or Conductive PTFE
Internal material options: Nitrile, EPDM, Neoprene, Santoprene, PTFE, Viton (FKM)
Fluid Connection options: 1/2" ANSI #150 Flange

Like all air operated diaphragm pumps, this pump requires a compressed air source to function.
Need a compressor and pump combo? Check out the compressors in the "Other Products" menu tab.