Spirax Sarco recently supplied a local petrochemical plant with 10 triple off-set Tyco valves with a Spirax Mitech actuator MAS300-200DA-tandum to reduce production and maintenance costs. The life of the new metal-to-metal seating arrangement is expected to be significantly better than the valves originally used.
In this application, the customer transports compressed air from a compressor bank to a general header. From the header the air is piped to a cold box where it is liquefied. The valves isolate the cold box when servicing or repairs are required. The valve is closed and the air is rerouted to another cold box – very costly if it cannot be done when required.
In the past 1200 mm rubber lined butterfly valves were used, the problem being that the liners did not last and were costly to replace. In addition, the plant had to be shut down and two cranes hired to take out the valves, a very costly exercise.
Spirax Sarco’s 1200 mm TYCO tri-centric disc valves solved the problem. The valves should last indefinitely on this application and will save the plant a substantial amount of money both on production and maintenance costs.
The Tyco valves require approximately 32 000 Nm torque to open. Spirax Sarco used its MAS300200DA/T scotch yoke, double acting actuator for this application. This actuator is operated with a 12 mm 110 V solenoid valve.
The valves have proved so successful that an order for a further three has been placed.
Reinstatement opportunity for ECSA registration
News
In 2023 the Engineering Council of South Africa (ECSA) announced a special opportunity for engineers in South Africa to reinstate their registration status if it had been cancelled. This exclusive offer is available until the end of August 2024.
Read more...High-quality sensing and automation equipment
News
The Turck Banner Demo Van is showcasing the company’s latest products and solutions.Turck Banner sells directly to end users and OEMs in a broad range of industries and applications.
Read more...From ground to compound: the journey of crude oil Wearcheck
News
You’re in for a ‘crude awakening’ when you download WearCheck’s latest Technical Bulletin. You will be treated to an in-depth explanation of the processes of producing oil, fuel and other petrochemical wonders that power our modern lifestyle.
Read more...SA Instrumentation & Control Technews Publishing (SA Instrumentation & Control)
News
Published by Technews Publishing, SA Instrumentation & Control is
South Africa’s premier ABC-audited information source for instrumentation, systems and automation solutions in southern Africa.
Read more...From the editor's desk: Something completely different Technews Publishing (SA Instrumentation & Control)
News
The Africa Automation Technology Fair is around the corner, and RX Global is ramping up its efforts to make the 2025 exhibition one to remember. More information can be found in their advertisement ...
printer friendly version