R-series cast and forged metal-seated ball valves


Category: Quarter-turn valves
Product line: Securaseal metal-seated ball valves

  • Size range(s)
    NPS 1/2 - 36 (DN 15 - 900)
    Pressure rating
    ASME Class
    150, 300, 600, 900, 1500, 2500 and 4500
    Standard connections
    Flanged (RF, RTJ), butt weld, socket weld, threaded, hub ends

Features and benefits

  • Bi-directional sealing with a preferred sealing direction in dirty service. 
  • Tight shut-off. Lapped balls and seats for 100% contact.
  • Upstream seat equipped with a Belleville spring to guarantee the scraping of the ball surface and maintain effective sealing. 
  • Low emissions stem seal.
  • Robust blowout-proof stem.
  • Fully guided stem.
  • Internal thrust washers to reduce torque and provide secondary stem seal. 
  • Inherently fire safe.
  • Wide range of trim options.
  • Multiple coating solutions.
  • Available in cast and forged construction.
  • Direct mount, no bracket and coupling.
Ideally suited for manual or actuated on-off service for a wide range of applications and temperatures up to 1,450°F (788°C).
  • FCC processes
  • Coal conversion
  • CCU catalyst oil slurries in oil refineries
  • Poly-silicon refining
  • Hot hydrocarbons and resids
  • High pressure oxygen and nitrogen applications
  • Saturated and super-heated steam
  • Thermal fluids

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