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Mack Valves Australia

Automatic Control Valves (ACV)

Water Distribution + Mining Industries + Infrastructure

For more than eighty years, Mack Valves has been manufacturing Automatic Control Valves following our strict quality control standards. Our tried and tested designs ensure reliability in critical environments and all have our Mack Quality Guarantee.

Superior in design, Mack’s Automatic Control Valves offer efficient and trouble-free reliable operation.

  • Hydraulically operated single seat diaphragm actuated globe valves
  • Have a resilient seat fully retained by a disc retainer to ensure drip tight seal
  • Packless design for long life and maintenance-free operation
  • Can be serviced in-line
  • Only one moving part
  • Diaphragm is not used as seating surface
  • Controlling the rate at which pressure is applied and released to the top chamber allows the valve to modulate control at any position between fully open and fully closed
  • Different pilot systems change the way in which the control of the diaphragm chamber is achieved
  • Fully guided design


  • Use with a multitude of liquid mediums including potable water, seawater, aviation fuel, diesel and many others

  • Flanged connections to international standards

  • Internal and external epoxy coating, fusion bonding and alternative coating materials on request

33 Series. ACVs re-imagined

The 33 Series range of Automatic Control Valves (ACV) has been optimised to represent a major step forward in control valve application.



FOR: Fluids non-injurious to construction


INDUSTRY: Municipal, Mining & Infrastructure

The 33 Series ACV continues to represent the high quality, reliable and dependable valve that Mack has always stood for, and it has now been re-engineered for today’s demanding expectations. All of our ACVs come standard with full 316 stainless steel trim for enhanced corrosion protection (unless ordered for bespoke application) and are designed and manufactured in accordance with AS5081. Mack’s 33 Series is used across Water Management, Mining and Infrastructure where the demand for absolute dependability exists. It can be fitted for in excess of 20 configurations to ensure it does the job you need.

Selection & Application

The new 33 Series range comes standard in ductile iron, FBE coated, and is available in sizes from 50mm to 300mm.

This ACV can be used for a whole range of liquid mediums including potable water, seawater, aviation fuel, diesel and many others. It has been certified to AS4020 for products in contact with drinking water. Specialist application pilot systems allow the valve to be used in all applications from water level management to pump and flow control.

Download ACV Brochure

Download ACV Data Sheet