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Keystone Figure 638 F638 Series E/Series 2 Slurry Valves
figure-638 slurry
The F638 SE/S2 is an extreme heavy duty slurry control valve, with an extended body style and replaceable body sleeve.
Keystone Figure 638 F638 Series E/Series 2 Slurry Valves

Specs

Stem
Adjustable packing

Features

  • Heavy robust construction.
  • Full repairability with replaceable internals for significantly extending valve life.
  • Extended body for protection of down stream piping.
  • Chrome Iron internals on the Series 2 coated with tungsten carbide.
  • Series 2 features tungsten carbide disc end spacers.
  • Swing through disc for minimal leakage at elevated temperatures.
  • Wing-style disc maximizes flow and wear resistance.
  • Venturi liner for improved flow control and thicker liner for wear resistance.
  • Improved mechanical seal to prevent the ingress of media to the bearing journals.
  • KTFE stem seals for ultimate resistance against caustic and acid applications.
  • Superior multiple stem seals.
  • Standardized mounting and drive adaptor connection allowing direct mounting of Keystone actuators and also allows for in-line actuator removal.