Fisher 8590 butterfly valve

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Emerson Process Management has introduced the Fisher 8590 butterfly valve, designed for application engineers to combine a single valve platform with various technologies to control a range of CL600 process demands.

The product comes with a selection of disk seals, actuator designs and material combinations to meet plant-wide throttling and on-off requirements. Several disk seals are available to withstand temperature conditions up to 538°C.

With a lugged body design across the CL600 size range of NPS3-NPS24, the butterfly valve can incorporate a splined shaft that accepts either a spring-and-diaphragm or pneumatic piston actuator. It also comes with either a square or keyed shaft that combines with handlevers, handwheels or pneumatic piston actuators. The design of the product’s disk seals provides tight shutoff and permits the use of smaller actuators in meeting full ASME B16.34 shutoff capabilities.

The valve also gives bidirectional shutoff, which means that torque necessary to open and close the valve remains constant regardless of the differential pressure across the disk.

The product also has the capability to manage sour liquids and gases, with trim and bolting materials available to comply with NACE MR0175-2002, NACE MR0175-2002-2003, MR0103, and MR0175/ISO 15156. With a CL600 rating per ASME B16.34, the valve’s face-to-face dimensions meet EN558, API609, MSS-SP68, and ASME B16.10 standards.