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2017-10 – Engineering News

eDART Dart Valves And Process Control Samplers Enhance Plant Efficiency At Booysendal Plant

‘Brian Whitehead, Plant Superintendent: Technical at Booysendal … [said] “Through the proper sizing of valves, we have been able to increase our feed rate to the plant without any major control issues on the valves”’.  more…

2017-04 – SA Instrumentation & Control

Flotation level measurement techniques explained

The requirement for good level control of flotation machines is well established and documented. In this article we will focus on the more common level measurement options available for the flotation plant today, including the pros and cons associated with each one.

All level control loops consist of essentially three main components: the level measurement sensor, the level controller and the level control valve. In order to achieve good level control each of the components need to work well.  more…

2017-09-22 – SA Instrumentation & Control

Afrivalve expands C-Tech knife-gate range

Afrivalve, the sales division of specialist valve manufacturer Johannesburg-based eDART Slurry Valves, recently delivered DN800 C-Tech valves to a customer in Africa for use on a mineral processing plant.

Due to the recent expansion in factory facilities, Afrivalve now manufactures up to DN800 as a standard with larger sizes upon request. more…

2016-10 – SA Instrumentation and Control

The changing face of valve manufacturing in South Africa

“The future is uncertain and there is no room for complacency in the market place,” Sessions concludes. “The companies that succeed will be those that are able to adapt to the new conditions. The ability to adapt, adjust and innovate is at the core of the eDART ethos.”  more…

2016-09 – SA Instrumentation and Control

Good level control on flotation concentrators

“The link between level control and profitability on a flotation concentrator is often under-estimated or even overlooked, and yet accurate control measurement is the key to increased lifespan for plant and plant equipment, thereby increasing its operational profitability”.   more…

2016-07-29 – Engineering News

Good Level Control On Flotation Concentrators Is Highly Profitable Says Slurry Solution Specialist
‘If the level measurement is above the setpoint, the grade produced will drop as the volume of concentrate increases, but the recovery will increase, and conversely when the level is below setpoint the recovery will drop off and grade will increase. “It is clear to see that maintaining a stable level at setpoint is vital to achieving an optimal performance of the flotation concentrator – if this does not occur then profitability is reduced dramatically.”‘   more…