Emerson Releases Rugged Rotary Control Valve

Emerson Process Management says that its new Fisher 8580 rotary valve that delivers rugged reliability and high cycle life, increasing plant availability. Laboratory verification performed on the Fisher 8580 included mechanical tests to determine cycle life, fatigue life, vibration resistance, temperature limits, and pressure limits, in addition to tests performed on materials for the valve body, disk, seals, shaft, and bearings to assure resistance to conditions that could lead to deterioration in performance.

The rotary valve can be installed in either a horizontal or vertical orientation with no detriment to performance or cycle life. This also enables left- or right-hand mounting of the valve actuator. The Fisher 8580’s disk design gives it an approximately linear flow characteristic to provide precise throttling control. The valve is offered with either a soft or metal seal, providing capability for enhanced shutoff. The interchangeable seal capability minimizes parts inventory requirements.

To facilitate use in all world areas, the Fisher 8580 meets API, ASME, and EN standards. The valve body meets PN 10 through PN 40, CL150, and CL300 ratings. Face-to-face and raised-face dimensions meet EN 593, API 609, and MSS-SP68 standards.