UA Valve



| Double Block and Bleed

Double Block and Bleed

Specifications


  • Size Range
  • 1/2" - 56" (DN 25 - DN 1400) Double Block and Bleed Valves
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  • Design / Features
  • Gate Type, Ball Type, Floating &Trunnion Mounted, End Entry, Top Entry, Subsea, Full / Reduced Bore, Cryogenic, Firesafe Certified, Anti-static, Blow-out proof stems.
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  • Design Codes
  • API 6D, API 6A, BS5351, BS 6755 / BS EN 12266, NACE MR 01 75, ANSI, ISO &API standards
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  • End Connections
  • Flanged, Screwed, Butt Weld, Hub, SW
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  • Pressure Class
  • ANSI 150 lbs - 4500 lbs
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  • Seat Design
  • Soft Seated, Metal to Metal, Single &Double Piston effect.
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  • Operator
  • Lever / Gear / Pneumatic / Hydraulic / Electric / Gas over Oil / Quarter Turn / Rack and Pinion / Scotch Yoke.
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Double Block and Bleed

Both in valves adopting the single piston effect or double piston effect seat design, UA Trunnion Mounted ball valves permit the body cavity to be bleed through the drain plug valve with the ball in the fully closed or fully open position. This permits the checking of the seating integrity without the need to turn the ball in its fully closed position, this avoided out generating troubles for the operation of the line.

Parts and Material List

The range can be integrated with a range of pneumatic / electric actuators and complete flow control packages. These valves service a wide spectrum of industries such as chemical, petrochemical, oil, gas and pharmaceutical industries and provide an easy and convenient way of providing 2 separate isolations and a visual confirmation of a tight seal.