Fisher Z500

The Fisher® Z500 is the first Fisher® severe service engineered on/off ball valve and is ideally suited for applications in the power, steam, mining, and coking industries. 


  • Designed for high process temperatures, erosive and corrosive products and high cycle applications with leakage rates of FCI 70-2 Class VI/ISO 52008 Rate A.
  • Utilize an integral seat design where the ball and seat are lapped and matted as a set to provide superb sealing.
  • Provide a Class VI shutoff and are tested to API 598 standards. Bi-directional shutoff is also available with Class V shutoff in the reverse flow direction.
  • Unique side mounted brackets support the actuator and prevent side loading of the valve stem and reduces torsional forces that may be present with traditional bracket designs.
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