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Overview
Rotork CVA electric control valve actuators have been specified for critical flow control duties on heavy-duty mineral processing machinery.
Challenge
A product from Mineral Engineering Processes (MEP) called the TBS Hydrosizer is used in the mining and mineral process industries throughout the world to separate materials, remove contaminants and beneficiate mineral particles that are generally less than 5 mm in size.
Solution
The TBS Hydrosizer process uses an upward current of water to create a hindered settling classifier in which material within a narrow size band can be held in a state of ‘teeter’ and dealt with according to size. A constant flow of upward current water must be maintained.
Result
The constant flow of material is achieved by means of a 4-20 mA signal from a hydrostatic density probe within the Hydrosizer Tank, which controls the CVA actuator operation. The CVA then adjusts the position of a valve, allowing material to discharge as necessary.
Customer Benefits
With high levels of resolution and repeatability, the swift response and positional accuracy delivered by the CVA actuator enhances the efficiency of the process. Integral super capacitors enable fail-safe operation of the CVA to close the valve on loss of mains power or loss of control signal to prevent any damage or contamination.
The CVA’s rugged construction and double-sealed IP68 watertight enclosure is designed to withstand the harsh and exposed environments often encountered in the mining and mineral industries.
News and Updates
Rotork enhances data collection with industrial ethernet
Leading the charge in industrial automation with enhanced data connectivity and analytics. Rotork is excited to introduce its fully integrated ethernet actuator, which is compatible with EtherNet/IP, Modbus TCP and PROFINET protocols.
Making a plan
Dave Godfrey, Rotork, UK, outlines how an effective maintenance plan can reduce downtime, increase profitability and improve safety at tank farms.
Rotork adds new features to the intelligent IQ3 Pro range
Rotork is excited to announce that new features have been added to the industry-leading IQ3 Pro range of intelligent actuators. The new features include increased speeds for the IQT3F Pro electric modulating actuators, independent open/close speeds for part-turn actuators and closed-loop control for the multi-turn and part-turn actuators.
Rotork: overflowing with ambitious industry solutions
Valve World's Alexandra Kist interviewed our Chief Technology Officer Ross Pascoe, Oil & Gas Managing Director Keith Barnard, and Site Services Director Mike Pelezo.
Hydrogen in the evolving energy market
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The importance of intelligent flow control in valve actuation
The principle behind intelligent actuation and asset management is the concept of the Industrial Internet of Things (IIoT), where, using devices embedded with sensors, electronics and software, data can be collected and exchanged on a large scale to enable improved communication and efficiency.
We welcome Hanbay, Inc. to the Rotork Group
Our acquisition of Hanbay, Inc. based in Montreal, Canada further enhances our product range by adding precise, compact, miniature electric actuators to our portfolio.
Connecting with our digital future
The IQ3 range is renowned for being one of the most robust and intelligent actuators in the industry, and Rotork is excited to introduce the new IQ3 Pro with full mobile App integration. This evolution enables the continual development of new features that drive digitisation and future-proofing of electric actuation.