German-based ARCA Regler has delivered several compressor blow-off valves, DN 600/1200, with a low-noise trim design, used for the largest axial compressor to be incorporated in an air compression plant. The 160 ton compressor manufactured by Siemens PGI, Duisburg, will be installed in the world’s largest air compression plant that is operated by Sasol in Secunda. The turbo compressor provides a capacity of approximately 700 000 cubic metres of air per hour.
Two valves in split range control the blow-off operation. For security reasons and for start-up a third valve has been installed. The valves are required mainly during start-up and shut-down of the compressor. In critical operation or if the compressor must provide constant revolutions during fluctuation in consumption, excess gas is either diverted or blown-off. The most important task of the surge limit control valve, however, is to serve as safety valve in case of adjustments in the surge protection control. The surge control prevents so-called pumping as a result of flow interruption in case the flow drops below the minimum capacity. This may cause severe damage to bearings and rotor.
For economical reasons the safety margin between blow-off line and surge limit is kept as small as possible. This is achieved by a sensitive control valve operation and the ability to quickly open without over-loading or stroking to the full open position in case of blow-off. Sasol uses the compressor for the production of oxygen which is used in coal gasification. Synthetic gas, which is produced in this process, is converted to sulphur-free fuel in further refining steps.
Submersible pump protection ifm - South Africa
Valves, Actuators & Pump Control
With ifm’s remote monitoring solution you can visualise the condition of your submersible pumps and diagnose issues before they become serious problems.
Read more...Electrically operated, energy-efficient double diaphragm pumps
Valves, Actuators & Pump Control
BMG has introduced the EVO 210 series electric double diaphragm pump range, offering a quieter, more energy-efficient alternative to conventional air-operated diaphragm pumps for chemical processing, mining, wastewater treatment and general manufacturing applications.
Read more...Internationally engineered valves support uptime in tough conditions Bearing Man Group t/a BMG
Valves, Actuators & Pump Control
BMG’s Fluid Technology division works closely with industry in sub-Saharan Africa to ensure that all valves, strainers and flow control equipment supplied meet the exact requirements of every application and also conform with stringent industry standards.
Read more...Hygienic processing with butterfly valves and Bürkert control technology Bürkert South Africa
Valves, Actuators & Pump Control
Among the standout technologies shaping modern hygienic processing environments are hygienic butterfly valves, especially when seamlessly integrated with Bürkert actuators, control tops and positioners.
Read more...Cryogenic valve limits leakage and energy loss
Valves, Actuators & Pump Control
Emerson has introduced the Fisher IC2 cryogenic top-entry control valve, ideal for cold box applications in air separation units, hydrogen liquefaction and LNG production.
Read more...Allmech introduces new water treatment solutions
Valves, Actuators & Pump Control
Allmech has announced a series of product updates aimed at improving reliability, efficiency and system simplicity in high-volume and high-hardness water environments.
Read more...Duplex valve improves continuous production at Gauteng manufacturing facility
Valves, Actuators & Pump Control
In a recent installation at a Gauteng-based manufacturer of household and personal care products, Allmech provided a tailored water treatment solution to ensure a consistent supply of soft water for steam generation, an essential element in the client’s 24/7 production cycle.
Read more...Developing solutions for SA’s wastewater challenges
Valves, Actuators & Pump Control
KSB Pumps has a proud global legacy in the development of self-priming pump technology, which reflects decades of engineering innovation and application expertise. Building on this foundation, KSB’s AU series has extended the company’s self-priming expertise into screened wastewater handling, which meets the growing needs of municipal and industrial sectors worldwide.
Read more...Helping to solve wastewater challenges
Valves, Actuators & Pump Control
KSB Pumps and Valves is doubling its efforts to help government and municipalities find practical and technical solutions to the growing wastewater challenges gripping large parts of the country.
While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.
printer friendly version