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Flowserve-Valbart-Trunnion Mounted Ball Valves - Double Block and Bleed

Trunnion Mounted Ball Valves - Double Block and Bleed

BRAND: Valbart

Double Block and Bleed Valve is a side-entry ball valve, with either a bolted or welded body, designed for use in upstream, midstream and downstream oil and gas applications. It requires two in-line isolation valves and a bleed valve used to drain or vent trapped fluid between the two closure elements in order to safely isolate the downstream pipe. This feature can be achieved with one single valves complete with a bleed port between the obturators.
 

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Parts & Services

Industries

  • Oil & Gas
  • General Industry

industry sectors

  • Upstream Exploration & Production
  • Midstream Transportation
  • Other Industries
Standards
  • API 6D/6A
  • ASME B16.34
  • NACE MR0175
  • API 6FA/API 607/API598
Design Range

Size Range:

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

Pressure Class Range:

  • 2000 psi to 10000 psi
  • Class 150 to 2500

Seating Material: Soft or Metal

 

Features & Benefits
  • Initial and installation cost savings owing to reduced structural requirements of design that saves both space and weight
  • Increased system reliability from single valve with bleed port between two valves
  • Improved plant and personnel safety due to anti-blowout stem, fire-safe construction and anti-static design


 

Configurations

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

  • 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

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