B25 Blagdon Metallic Diaphragm Pump

The Blagdon B25 Metallic range is available in Stainless Steel, Aluminium and Cast Iron with various component material options. Fitted with 1 inch suction/discharge fittings, the B25 Metallic operates at a maximum air pressure of 8.6 Bar and can achieve a flowrate of 136 litres per minute.

  • Material options suitable for a wide range of applications
  • Simple construction, easy to maintain
  • Self-priming, ideal for emptying containers
  • End ported for improved flow
  • Pressures to 8.6 bar (125 PSI)
  • Flow rates up to 180 litres/minute (48 gal/min)
  • Bolted construction for greater integrity
  • Weighted valve balls for high S.G. and viscous fluids
  • Reliable pneumatic air valve


Maximum Delivery: 180 ltrs/min (48 gal/min)
Max. Working Pressure: 8.6 bar (125 PSI)
Max. Solid Particle Size: 3 mm. (0.12″)
Air Inlet: 3/8″ NPT
Temperature Limits: Determined by Elastomers
Suction Lift (Dry): 6.1 metres (20 feet)
Suction Lift (Wet): 7.6 metres (24.9 feet)
Fluid Inlet / Outlet: 1″ BSP / NPT
Installation: Wall or Surface mounted
Accessories Included: Exhaust Air Silencer
Shipping Weight: 16 kg. (35.3 lbs) aluminum, 25 kg. (55.1 lbs) cast iron/aluminum, 25 kg. (55.1 lbs) stainless steel/aluminum
Shipping Dimensions: 400 x 300 x 470 mm, 15.8″ x 11.8″ x 18.5″

Click here for Blagdon B25 Metallic Data Sheet.