Air-Operated Diaphragm Pump FDM 40

For flow rates up to 380 l/min

The FDM 40 diaphragm pump pumps low- to high-viscosity fluids at flow rates of up to 380 l/min.
The injection-moulded version is self-priming, protected against dry running and suitable for abrasive fluids, solids and liquids with a high gas content.

Features

  • Spray-Coated Version
  • Self-priming when dry
  • Protected against dry running
  • Flow rate adjustable via air pressure
  • No bypass required
  • Floodable pump design
  • Forced reversal for safe restart
  • Oil-free operation
  • Control valve is not affected by contaminants in the air
  • For solid particle sizes up to 6.4 mm
  • Available in plastic and metal versions
  • Also available in an explosion-proof version

Advantages

  • Reliably pumps abrasive, corrosive, and viscous fluids
  • Enables high flow rates of up to 380 l/min
  • Infinitely adjusts the flow rate via air pressure
  • Starts reliably from any shutdown position
  • Operates without clogging, even without an additional bypass
  • Reduces maintenance requirements thanks to oil-free operation
  • Supports service-friendly operational procedures
  • Offers material options for different media
  • Suitable for flammable media in the appropriate explosion-proof design

Media Examples

  • Alcohols in the Pharmaceutical Industry
  • Gasoline
  • Chlorine bleach
  • Cleaning agents
  • Pickling solutions
  • Wastewater
  • Abrasive media
  • Corrosive media
  • Highly flammable media
  • Viscous media

Technical Specifications FDM 40 plastic + metal

Feature Specification performance diagram
Delivery rate max. max. 380 l/min¹ (Metal version: 340 l/min¹)

Plastic version:

Metal version:

 

Delivery pressure Max. 8 bar
Operating pressure max. 8 bar
Dry suction head max. 6.0 m¹
Suction head with liquid max. 7.6 m¹
Solid particle size max. 6.4 mm
Viscosity min. 1 mPas to max. 15,000 mPas²
Housing materials Aluminum, gray cast iron, polypropylene, polyvinylidene fluoride, stainless steel
Media / Fluids Abrasive media, corrosive media, highly flammable media, viscous media
Connection: Pressure port G 1 1/2 or 1 1/2" flange
Suction connection G 1 1/2 or 1 1/2" flange
Applications Ex

1 Depends on pump model, operating pressure, and fluid
2 Depends on the fluid’s flow characteristics

Dimensions [mm] FDM 40 plastic version

FDM 40 plastic variants

  Typ Pump Housing Diaphragm Ball Hub Seal weight Part No.
FDM 40 PP/AA Polypropylene Santoprene Santoprene PP EPDM 28,1 kg 10-M40 40 010
FDM 40 PP/TT Polypropylene PTFE PTFE PP PTFE 28,1 kg 10-M40 40 100
FDM 40 PVDF/TT Polyvinylidene fluoride PTFE PTFE PVDF PTFE 41,7 kg 10-M40 60 000

 

FDM 40 metal variants

For use in potentially explosive atmospheres in accordance with the ATEX Directive 2014/34/EU.

  Typ Ex Pump Housing Diaphragm Ball Hub Seal Weight Part No.
FDM 40 AL/NN Aluminium NBR NBR AL NBR 23,4 kg 10-M40 10 000
FDM 40 AL/TT Aluminium PTFE PTFE AL PTFE 23,4 kg 10-M40 10 100
FDM 40 S/TT Stainless steel PTFE PTFE Stainless Steel PTFE 38,3 kg 10-M40 20 100
FDM 40 GG/NN Grey cast iron NBR NBR PP NBR 36,1 kg 10-M40 30 000

 

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