Yokogawa introduces Rotameter for SIL applications
December 2011
Flow Measurement & Control
The new glass Rotameter RAGN from Yokogawa is designed to offer maximum lifetime and maintenance-free operation in continuous flow measurement of liquids and gases. The RAGN with reed switches has been assessed to SIL 1 acc. (IEC 61508:2010) and complies with the Machinery Directive ISO 13849-1 standard.
The RAGN resists highly corrosive media and offers a wide measuring range, limit switches can be fitted to indicate minimum or maximum flow alarms when the magnetic float exceeds the limit position. The glass measuring tube is equipped with an easy-to-read-scale protected by a shield against glass splinters or aggressive media. For simple wiring, different process connections and sizes are available with a cable connection box available as an option.
The purely mechanical principle of the Rotameter can be used by manufacturers to optimise productivity through its reduced energy demands. Using Rotameters with comparably low pressure loss results in low pumping costs, which helps to achieve sustainability through minimal environmental impact. The RAGN design consists of standard components and parts used in other Yokogawa flow products for better maintainability and reduced spares holding.
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