Emerson Process Management Fisher 8590 high-performance butterfly valve
Emerson Process Management has introduced the Fisher 8590 high-performance butterfly valve that brings a selection of disk seals, actuator designs and material combinations to meeting plant-wide throttling and on-off requirements.
Several dynamic disk seals are available in the valve’s design to meet temperature conditions that range from low to moderate up to 538°C. Severe service and cryogenic applications can be met as well with the appropriate metal-polymeric or stainless steel seal construction.
Utilising a lugged body design across the CL600 size range of NPS3-NPS24, the valve can incorporate a splined shaft that accepts either a spring-and-diaphragm or pneumatic piston actuator. It is also available with either a square or keyed shaft that combines with handlevers, handwheels or pneumatic piston actuators.
The pressure-assisted design of the disk seals provides tight shutoff and permits the use of smaller, less expensive actuators in meeting full ASME B16.34 shutoff capabilities.
The valve offers true bidirectional shutoff, which means that torque necessary to open and close the valve remains constant regardless of the differential pressure across the disk.
The optional ENVIRO-SEAL packing system combines with the valve’s smooth shaft surface to keep emissions below 100 parts per million (ppm). When dealing with sour liquids and gases, trim and bolting materials are 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. The valve body self-centres on the line flange bolts as a fast, accurate means of centring the valve in the pipeline.
Phone: 03 9721 0200
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