Metso Automation’s Cintac Advanced Automation System simplifies and reduces the cost of automating rotary on-off valves. The system includes advanced diagnostics, digital bus communication capabilities and automated online emergency shutdown testing. Users benefit from plug and play installation. The heart of the system is a rugged, field proven rack and pinion actuator with ISO 5211 interface for compatibility with any quarter turn valve. Position sensing is done by a contact-free magnetic resistive sensor with no mechanical parts or connections to wear out or bind. It is not affected by lateral or vertical shaft movement. Push button switch setting allows for contact-free position setting and eliminates having to set cams. The unit is completely sealed and protected from corrosion and short-circuiting due to moisture. Its solid-state circuitry assures the longevity of switches. Leak-free integral air porting further improves the unit’s reliability by eliminating crimping or bending of tubing, leaking fittings, and worn or broken hoses. A built-in spring-return re-breather automatically feeds clean instrument air to the spring housing to prevent water ingress and internal corrosion. The Cintac systems construction allows all critical components to be easily accessible through a removable cover. It operates at temperatures ranging from -20 to 65 °C and pressures to 8.3 bar. Units with a low temperature option to -40 ºC are also available. The system is also available with Atex approvals and IP 67 enclosure protection.
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