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Control valve actuation passes the glass making test

16 February 2016

Rotork CMA electric actuators have been finding applications in the glass making process, to provide a critical valve control function.

Maintaining a constant temperature and pressure is essential for energy efficient glass making. The CMA electric actuator valves are being used to control the temperature and pressure in furnaces by precisely regulating the air and gas mixture. Traditionally, the industry has used various pneumatic and electric actuators for the modulating and isolating valves involved, but has recognised the need for a more reliable and energy efficient universal solution for this application. 

Tests have demonstrated that the CMA out-performs existing equipment, providing improved precision, reliability and energy savings in a compact and easy to set product that is available in a range of sizes that suits all the various valve types encountered. In addition, the actuator has proven its ability to interface with industry-standard 4-20mA or RIRO (Remote In Remote Out) control signals to enable plants in different countries to standardise on the same product.


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