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Figure 638 Series E/Series 2 Slurry Valve

Brand: Keystone

The F638 SE/S2 is an extreme heavy duty slurry control valve, with an extended body style and replaceable body sleeve.
Features
  • Heavy robust construction.
  • Full reparability 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 for optimum 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.

Specifications

Brand

Approvals & Certifications

  • PED

Body Design

  • Long Pattern

End Connection

  • Wafer

Material

  • Carbon Steel

Media

  • Solid

Pressure Class

  • ASME

Process Connection Type

  • Class 150 RF, Class 300 RF, Class 600 RF

Seat / Seal Type

  • Metal

Standards

  • ASME B16.34

Stem

  • Adjustable Packing

Valve Size

  • NPS 10 / DN 250, NPS 12 / DN 300, NPS 14 / DN 350, NPS 16 / DN 400, NPS 18 / DN 450, NPS 2 / DN 50, NPS 1-1/2 / DN 40, NPS 2-1/2 / DN 65, NPS 20 / DN 500, NPS 8 / DN 200, NPS 6 / DN 150, NPS 3 / DN 80, NPS 24 / DN 600, NPS 4 / DN 100

Valve Size Standard

  • DN

Valve Type

  • Butterfly

  • Bauxite Slurries
  • Coal Washeries
  • Tailing Dispersal
  • Cement
  • Caustic
  • Sugar Industry and Tailings
  • Mud And Sand Dispersal
  • Mineral Sands
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