Duff and Macintosh
OFFICES: 13/45 Leighton Place
Hornsby  NSW  2077
POSTAL:
ADDRESS
PO BOX 396
Hornsby  NSW  1630
Australia
Phone. 61 2 9482 1411     Fax. 61 2 9482 1489     Email. sales@duffmac.com.au 


Process control is the oldest part of our business. Since we started in 1928, we’ve been providing process measurement and control solution to industry.

Please select from the product categories below - click on each for more information:

We understand flow measurement and flowmeters, specializing in including Mass Flow, Electronic Volumetric, Variable Area (VA or Rotameters) and DP generating meters.

Click to download Click here to download the Alicat Flow & Pressure Solutions Catalog [3.5 mb]
Click to download Click here to download the Influx Flow Measurement Selection Guide [1.3 mb]

Flow Switches and Manifolds
Flow Switches and Manifolds
 
Sight Flow Indicators
Sight Flow Indicators
Type F
 
Sight Glass
Sight Glass
Type P
Sight Flow Indicators
Sight Flow Indicators
Type S
Sight Glass
Sight Glass
Type T
Sight Flow Indicators
Vista 'Ball' Type Flow Indicators
Sight Flow Indicators
Vista 'Spinner' Type Flow Indicators
Glass Tube Flowmeters
Glass Tube Flowmeters
Acrylic Bodied Flow Meters
Acrylic Bodied Flow Meters
Bronze, S/S and Monel Bodied Meters
Bronze, S/S and Monel Bodied Meters
Flow Switches & Alarms
Flow Switches & Alarms
Flow Meters for Plumbers
Flow Meters for Plumbers
Mass/Volumetric Flow Meters
Mass/Volumetric Flow Meters
Mass/Volumetric Flow Controllers
Mass/Volumetric Flow Controllers
Digital Liquid Flowmeters
Digital Liquid Flowmeters
Digital Liquid Controllers
Digital Liquid Controllers
Turbine Flow Transducer
Turbine Flow Transducer
PTFE Turbine Flow Transducers
PTFE Turbine Flow Transducers



With our supply partners, Honeywell, Sensortechnics and Pyropress Engineering, we have become a comprehensive supplier of all sorts of level measurement techniques and devices.

Submersible Level Sensors
Level Probes and Transmitters
 
Horizontal-Mounted Level Sensor Float Switch
Level Switches
   



Duff and Macintosh are “The Pressure Specialists” – in fact we thrive under pressure!

With our pressure regulation equipment, we can solve some of the most arduous pressure regulator and sampling applications.

With the Honeywell group of companies and Sensortechnics as our major suppliers, you can measure 1” WC to 200,000 psi! with customising to customer requirements our specialty.

OEM and Industrial Pressure Sensors
OEM and Industrial Pressure Sensors
 
Ultra Low Pressure Sensors
Ultra Low Pressure Sensors
 
Custom & Industrial Pressure Sensors/Assemblies
Custom & Industrial Press. Sensors/Assemblies
Digital Pressure Gauges
Digital Pressure Gauges
Electronic Pressure Controllers
Electronic Pressure Controllers
 



With our suppliers, Exergen, ITI and Honeywell, we can provide many temperature and heat detection and measurement solutions.

Heat Flux Transducers
Heat Flux Transducers
 
Infrared Temperature Sensors
Infrared Temperature Sensors
   



Starting many years ago with Ultrasonics, we moved away from a “dynamic” approach to a simple approach. This, combined with our Hot Spot and temperature detectors make us a simple supplier of quality equipment.

Ultrasonic Leak Detection Equipment
Ultrasonic Leak Detection Equipment
 
Infrared Hot Spot Detectors
Infrared Hot Spot Detectors
 
Liquid Bubbling Leak Detector
Liquid Bubbling Leak Detector



Lenox have been in this business for many years. Their expertise was used in “The Manhattan Project” all the way to modern power stations and incinerators.

Auto Blow-Down & Heat Recovery
Auto Blow-Down & Heat Recovery
 
High Temp Boiler & Furnace Video Systems
High Temp Boiler & Furnace Video Systems
 
Boiler Water Sample Conditioning
Boiler Water Sample Conditioning



Started in 1924 (yes, they are even older than D&M) Sentry Equipment had developed reliable and economical devices for Boiler water and steam sample conditioning components and systems for both grab sampling and continuous measurement.

Since 2003, Bristol Equipment joined Sentry to form a comprehensive group who know their industry, the applications and their equipment. Sentry’s equipment is a bench-mark for all equipment in the industry. For the best equipment available, you cannot go past us.

Wet rack panels and components are our business. Coolers, pressure reducers and complete panels can be supplied. Exotic materials are our forte.

Sample Coolers
Sample Coolers
 
Sample Pressure Reduction
Sample Pressure Reduction
 
Sample Sequencers
Sample Sequencers
Sample Panels (Wet Racks)
Sample Panels (Wet Racks)
Sample Flow Control
Sample Flow Control
Coolant Temperature Control
Coolant Temperature Control
Filters
Filters
Thermal Shut-Off Valves
Thermal Shut-Off Valves
Double Block & Bleed Valves (petrochem)
Double Block & Bleed Valves (petrochem)
Pharmaceutical & Chemical Samplers
Pharmaceutical & Chemical Samplers
Slurry Paste, Powder and Cream Samplers
Slurry Paste, Powder and Cream Samplers
 



Submersible Level Sensors
Hazardous Area Instruments




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