Utilizing a rotor which, through use of an infrared beam, generates a digital signal, the DigiFlow concept offers high accuracy, low cost, and a flexible design to meet customer requirements. In either flow controlled, or monitoring applications, the DFS series meters can measure flow rates and total quantities.
Housing of high quality polymers or machined metal.
Low pressure drops
Friction-free fluid bearings yielding long life.
Compatible with most acids and bases.
Turn down ratios of up to 64:1
Mount in any position without flow straighteners.
Infrared signal pick-up.
Resolution of up to 65,000 pulses/litre (246,000/gallon).
Systems & Applications
Connected to a basic counter, the DFS meter can monitor flow rates and/or total quantities. In conjunction with a stand-alone controller or interfaced with process control or general purpose computers, the DFS is an integral part of flow controlled processes.
In end-use, or in OEM applications, including those requiring disposable components, the DFS is a key part in a systems approach to a wide range of monitoring and controlling applications including:
Dosing of chemicals into main stream flows for agricultural, water treatment, and other requirements.
Additive injection in chemical processes.
Monitoring/Controlling fuel flows.
Monitoring pulse feed pump flows.
Duff & Macintosh | Process Instruments
On the 12th January 1928, Duff and Macintosh Pty Ltd was formed. Originally named Crossle, Scott & Duff Brothers Limited, the company changed its name to Duff and Macintosh Pty Ltd when Donald Urquart Macintosh joined the company in the 1930’s.
Our range is diverse – a heritage from the age of our company and our efforts to succeed in other areas of business. Our oldest relationship to a supplier is nearly 60 years, with our oldest customer relationships exceeding 70 years!
We import nearly all our products via airfreight, as fast delivery is of prime importance to us and our customers. These days we and our customers are spoilt by short lead times due to the adoption of more air freight. With fast air freight forwarders and door to door services, shipments arrive in days or weeks, instead of months.
Our customers include: All major Universities, government departments, major industrials such as BHP, ACI, Pilkington, CSR, BOC, MIM, etc. The Defence force and the major Power and Utility suppliers are also large customers of ours.