Grundfos’ Diaphragm

Designed for mechanical or digital control, you can rely on Grundfos diaphragm pumps to provide the accuracy, durability and reliability you need in dosing chemicals in general water treatment and industrial process applications. All models feature corrosion-resistant PVC for the pump bodies and dosing heads, EPDM diaphragms and ceramic valve ball. They are also supplied with complete installation kits including foot valve with strainer, injector valve, 2m PVC suction hose and 6m PE delivery hose. 

industrial

Know more about GRUNDFOS
DIAPHRAGM Series

Design Advantages
  • Precise and easy setting 
  • Unique dosing technology 
  • Compact design saves money and space 
  • Accessories enhance operation of the entire system 
  • Smooth and low-pulsation dosing 
  • Carefully selected materials for reliability and longevity 
Available Options

We customise pumps according to your specific application. Get in touch with us today to get a complete list of your options. 

 

  • Materials options 
  • Control options 
  • Connection options 
  • Accessories and spare parts 
  • Baseplate/mounting 
Key Specifications

Mechanical 

RANGE 

MAX FLOW 

MAX HEAD 

LIQUID TEMP 

MAX PRESSURE 

DMH 

1.5m3/h 

200 bar 

-10 .. 90 °C 

200 bar 

DMX 

0.765 m3/h 

12 bar 

-10 .. 70 °C 

12 bar 

 

Digital 

RANGE 

MAX FLOW 

MAX HEAD 

LIQUID TEMP 

MAX PRESSURE 

DDA 

0.200 m3/h 

16 bar 

-10 .. 50 °C 

16 bar 

DDE 

0.200 m3/h 

10 bar 

-10 .. 50 °C 

10 bar 

DME 

0.940 m3/h 

10 bar 

 

10 bar 

 

Applications
  • Drinking water treatment 
  • Wastewater treatment 
  • Cooling water treatment 
  • Washing systems 
  • Process water treatment 
  • Chemical industry 
  • Caustic Dosing 
  • Sulphuric acid dosing 
  • pH correction 
  • Chemical dosing 
  • Desalination 
  • Industrial wastewater and water supply 
  • Industrial Heating 
dda
INDUSTRIAL

Our range of available
Diaphragm pumps

DMH

MECHANICAL

DMX

MECHANICAL

DDA

DIGITAL

DDE

DIGITAL

DME

DIGITAL

PUMP

Principle of Operation

Grundfos diaphragm pumps are reliable positive displacement pumps which utilize two flexible diaphragms that reciprocate back and forth, creating a temporary chamber, which both draws in and expels fluid through the pump.  

When the diaphragm flexes, the pressure inside the pump lowers, which draws in fluid. Depending on the model, the diaphragm uses different methods to flex. When the diaphragm is flexed back, the liquid is forced out of the pump the other way, and in so continues to draw in and expel the liquid being pumped. The diaphragms work as a separation wall between the air and the liquid. Many diaphragm pumps will include check valves to keep the liquid from flowing backwards in the pump. 

OBJECTIVES

SERVICING YOU ANYWHERE
IN AUSTRALIA

All-Pumps offers bespoke solutions to your manufacturing processes. Whether you need a new pump, replacement part, repair services, system design, or monthly maintenance, call our professionals! 

Our customer support services set us apart, we take responsibility to give you the best experience possible. 

How our experts can help you: 

  • Design and cost a system or project 
  • Customise and engineer solutions for your specific application 
  • Provide spare parts and maintenance services
  • Conduct Site-Wide Pump Health Audits with our Nexus Program
  • Pump Manuals and Technical Guides 

And so much more! 

Get in touch

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