Anti-surge valves (ASVs) meet the most stringent requirements, and in the event of a disturbance must open lightning fast, with precise positioning and absolute reliability. ASVs are often used with axial compressors in the steel industry. One of the world’s leading compressor manufacturers selected Arca anti-surge valves for its compressor stations at a steel mill in Taiwan.
ECOTROL control valves are used to secure the compressor for the blower that supplies air to the blast furnaces. An air supply of between 4 and 5 bar is required in order to achieve sufficiently high temperatures for combustion in the blast furnace. If during this process there is an increase in pressure on the consumer side, a return flow will occur in a fraction of a second. For the compressor, this means that the pressure will abruptly increase and the consequence is backflow and flow interruption, so that the compressor accelerates due to this cyclical action.
The consequences would be severe, and there are multiple dangers, from damage of the machine blades to total machine loss. To prevent this, the hydraulically-controlled valves must react in less than one second in the event of a fast-acting trip. This means opening in less than 1,5 second maximum dead time of less than 100 ms – at a very high volumetric flow rate and the most stringent requirements on the control performance. This is a highly demanding task, where there is no second chance. Arca’s world-class technology convinced the manufacturer.
Compact valve position indicator Emerson Automation Solutions
Valves, Actuators & Pump Control
Emerson’s new TopWorx DVR Switchbox is an entry-level addition to the DV Series of valve position indicators. It combines a durable resin enclosure, compact size, and a patented cam design that provides a reliable valve position feedback for water and wastewater systems, food and beverage production lines, and industrial utilities.
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Cashco has long been a trusted name in industrial control solutions, offering a broad range of regulators and control valves designed to meet the rigorous demands of various industries. There are two key Cashco product lines, its regulators and the Ranger QCT control valve.
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BMG delivers state-of-the-art valve solutions to diverse industries across Africa, in collaboration with InterApp, a global leader in the design and manufacture of high-quality valves.
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ENERGYValves is expanding its operations with a new facility in Cape Town. The new premises will significantly enhance the company’s capacity to serve the Cape Town market and surrounding areas.
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Valves, Actuators & Pump Control
Leaking valves in industrial plants not only lead to loss, safety risks and possible contamination and pollution, but also result in high economic costs. Therefore, valves in hazardous areas require regular proper inspection and preventive maintenance to ensure their functionality.
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Valve specialist, Valve & Automation, supplies total valve and control solutions to key process industries throughout southern Africa. The company has now been appointed as the exclusive agent for US company, Cashco for the supply of control valves, regulators, tank equipment and flame arrestors.
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Emerson has introduced the new ASCO Series 327C solenoid valve, which features a direct-acting, high-flow design that provides superior flow-to-power ratio. It permits high flows at minimum power levels, making it ideal for use in power plants, refineries, and chemical processing facilities.
Read more...New system improves performance of magnetic drive pumps
Valves, Actuators & Pump Control
KSB Pumps and Valves has introduced its ground-breaking MagnoProtect system for the local petrochemical, chemical and general industry markets ,to enhance the safety and performance of its magnetic drive pumps.
Read more...Emerson software optimises maintenance Emerson Automation Solutions
Valves, Actuators & Pump Control
Emerson has announced the Plantweb Insight Valve Health Application, a powerful software tool that combines Fisher control valve expertise with advanced analytic algorithms. The new app makes it possible for users to visualise an entire connected fleet of valves, while prioritising actions based on the health index of each valve.
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