Model: KES40


1.5 (inch)

Air Inlet Size

1/2 (inch)

Pump Body Material

Aluminium, Stainless steel, Cast iron

Max Flow Rate

378 (LPM)

Max Pressure

8.4 (Bar)

Max Diameter Solids

4.8 (mm)

AOBL 1.5″ air operated diaphragm pump combines maximum performance and efficiency with superior sealing. Unique construction provides higher flow rates and a redesigned fluid path that reduces internal friction for maximum output and longer diaphragm life. It is lightweight and versatile enough to handle corrosive fluids and small suspended solids. The rugged construction features a thick-walled injection-molded, molded fluid housing and a cast iron or aluminum center section to withstand a variety of demanding industrial applications.

Pump Body Material options

  • Aluminium alloy
  • Stainless steel
  • Cast iron

Seal ring and diaphragm options

MaterialApplicable Temperature
Viton-40 F (-40 ℃) to 350 F (176.6 ℃)
PTFE40 F (4.4 ℃) to 350 F (176.6 ℃)
Santoprene-40 F (-40 ℃) to 300 F (148.8 ℃)
Buna-N-40 F (-40 ℃) to 250 F (121 ℃)
Polyurethane-40 F (-40 ℃) to 200 F (93.3 ℃)
Material and Applicable Temperature


Maximum working fluid pressure8.4 Bar
Air pressure range at working1.4 to 8.4 Bar
Maximum air consumption3 m3/Min
Maximum free flow378 LPM
Maximum transport of solid particles4.8 mm
Air inlet size1/2 inch
Air outlet size3/4 inch
Technical Parameters

Performance curves

KES40 Performance Curves
KES40 Performance Curves