Valbart® Top Entry Ball Valves Full bore

Valbart top entry ball valves support in-line inspection and maintenance without removing the valve from the pipeline. Two independent floating seats provide bidirectional sealing, while double block and bleed capability, a fire-safe design and an anti-blowout stem support dependable isolation in demanding service.

... Read more Read less

  • Independent ball and stem design reduces pressure-induced side thrust for more efficient operation
  • Anti-static construction maintains electrical continuity across metallic components to support safer service
  • Top-entry access simplifies in-line inspection and maintenance without removing the valve from the pipeline
  • Low-emission design supports demanding pollution-control requirements
  • Reduced leak paths compared with bolted-bonnet side-entry valve designs

  • API 6D/6A
  • ASME B16.34
  • NACE MR0175
  • API 6FA/API 607/API598

Size Range:

  • 2 to 56 (API 6D Valves)
  • 1 13/16" to 16 3/4" (API 6A Valves)

Pressure Class Range:

  • Class 150 to 2500
  • 2000 psi to 10000 psi

Seating Material: Soft or Metal

Standard

  • Cast or forged components-bolted body design
  • Seals: O-Ring + graphite fire safe
  • Soft seated/Metal seated
  • Fittings: Stem and seat greaser
  • Self relieving or double piston effect seats
  • Double block bleed
  • Fire-safe
  • Anti-static automatic
  • Cavity relief

Cryogenic (-196 °C)

  • Cast or forged components-bolted body design
  • Seals: Lip-seal + graphite fire safe
  • Soft seated/Metal seated
  • Self relieving or double piston effect seats
  • Double block bleed
  • Extended bonnet
  • Fire-safe
  • Anti-static automatic
  • Cavity relief

High Temperature

  • Cast or forged components-bolted body design
  • Seals: spiral wound or graphite
  • Metal seated
  • Self relieving seats
  • Double block bleed
  • Extended bonnet
  • Fire safe
  • Anti-static automatic
  • Cavity relief



 

Documents & Support

Let Us Do The Heavy Lifting Let Us Do The Heavy Lifting

Let Us Do   The Heavy Lifting

Find Flowserve representatives near you.

Connect with a local Flowserve expert for products, services, and industry guidance to enhance performance and safety.