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The Fisher 8590 high performance Butterfly valve maintains tight shutoff and can be specified for a wide range of pressure and temperature conditions. The 8590 valve is available in a lugged body design. A splined shaft can combine with a variety of spring-and-diaphragm or pneumatic piston actuators and a square or keyed shaft can combine with a variety of handlevers, handwheels, or pneumatic piston diaphragm actuators.
