Air Powered Industrial Diaphragm Pumps

L2 and L4 self priming, air powered double diaphragm pumps are an efficient fluid pumping solution for the transfer and transport of low, medium and high viscosity fluids and can power different work points in a cost effective and efficient way at low pressure.

Air operated diaphragm pumps are a form of positive displacement pump and work by introducing compressed air through the pneumatic exchange behind one of the two diaphragms, this generates compression and pushes the product into the delivery duct, at the same time the opposing diaphragm creates a vacuum and intakes product. Once one stroke has been completed the pneumatic exchange diverts the compressed air to the opposite diaphragm and the cycle is reversed.

Our diaphragm pumps carry Atex certification, and come in either Aluminium or Stainless Steel, with a choice of seal materials, offering maximum flow-rates of 21-40 Litres per minute. Simple to use robust pumps are self priming, portable and able to pump materials with high solid or abrasive contents.

Features & Benefits

  • Starting point at minimal pressure.
  • Low noise level.
  • Quick self priming immediate flow.
  • Reinforced long-life pump membranes.
  • Corrosion and leak resistant construction.
  • Adjusts speed at high pressure.
  • High flow reduces work cycles and wear.
  • Wall bracket or drum mounted pump.
  • Minimal maintenance.

Fluid Transfer Applications

  • Paints and Primers.
  • Solvents and cleaning agents.
  • Inks and dyes.
  • Lubricants, vegetable & mineral oils.
  • Enamels.
  • Acids and caustics.
  • Detergents.
  • High density, abrasive and corrosive fluids.
  • General chemical products.
L4 Diaphragm pump with regulator and pressure gauge.
Atex Certified EX III 2 G c IIB T4 L2 1:1 Diaphragm Pump L4 1:1 Diaphragm Pump
Pump Material Aluminium or Stainless Steel
Use Transfer of low-medium viscosity fluids
Diaphragm Material PTFE or Rubber
Max. Flow Rate 21 L/min 40 L/min
Max. Air Supply Pressure 7 bar 8 bar
Max. Air Consumption 120 L/min 190 L/min
Air Inlet 1/4" 1/4"
Fluid Inlet 1/2" 1"
Fluid Outlet 1" 1"
Dimensions 170 x 230 x 196 mm 205 x 320 x 220 mm
Weight 6 Kg 8 Kg
Max. diameter of solids 2.4 mm 3 mm
Diaphragm and piston pumps alongside pneumatic pressure primers.

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