B50 Blagdon Metallic Air Operated Double Diaphragm Pump

The Blagdon B50 Metallic Air Operated Double Diaphragm Pump range is available in Stainless Steel, Aluminium and Cast Iron with various component material options. Fitted with 2 inch suction/discharge fittings, the B50 Metallic operates at a maximum air pressure of 8.6 Bar and can achieve a flowrate of 500 litres per minute.

  • Air valve designed for in-line maintenance
  • End ported for improved flow
  • Pressures to 8.6 bar (125 PSI)
  • Flow rates up to 530 litres/minute (140 gal/min)
  • Bolted construction for greater integrity
  • Robust consruction


Maximum Delivery: 530 ltrs/min (140 gal/min)
Max. Working Pressure: 8.6 bar (125 PSI)
Max. Solid Particle: Size 6 mm. (0.24″)
Air Inlet: 3/4″ 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: 2″ BSP / NPT
Installation: Surface mounted
Accessories Included: Exhaust Air Silencer
Shipping Weight:
38 kg. (83.8 lbs) aluminum
63 kg. (138.9 lbs) cast iron / aluminum
90 kg. (198.4 lbs) cast iron
Shipping Dimensions: 540 x 350 x 750 mm, 12.3″ x 13.8″ x 29.5″

Click here for Blagdon B50 Aluminum Data Sheet.
Click here for Blagdon B50 Stainless Steel Data Sheet.