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Double Block and Bleed Isolation Plug/Test

Brand: Curtiss-Wright Corporation
The Double Block and Bleed - DBB plug enables you to positively isolate and monitor potentially explosive vapors during “hot work”, then effectively hydrotest the new weld connection with one easy to use tool.

The aluminum/steel construction makes the tool highly portable, and easy to position.

The volume of water required for a test is so small that testing can be accomplished using a hand pump.
Features
  • Lightweight, Aluminum and Steel Construction
  • Monitor Potentially Explosive Vapors During Hot Work
  • The Dual-port System Allows Water to be Circulated Between Seals, Providing Improved Cooling During Pre/Post-Weld Procedures
  • Uses Less than a Gallon: 3.8L of Test Media - Cutting Down on Fill Times and Reducing Waste/Treatment Expenses.
  • ASME PCC-2 Type IV Testing Device
  • Test Pressures To 2250 PsiG: 155 BarG Between The Seals
  • Available for NPS Ranging from 3/4” to 24”: DN20 - DN600
  • Pressure Tests Performed with Less than a Gallon Of Water
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The Double Block and Bleed - DBB plug enables you to positively isolate and monitor potentially explosive vapors during “hot work”, then effectively hydrotest the new weld connection with one easy to use tool.

The aluminum/steel construction makes the tool highly portable, and easy to position.

The volume of water required for a test is so small that testing can be accomplished using a hand pump.
Features
  • Lightweight, Aluminum and Steel Construction
  • Monitor Potentially Explosive Vapors During Hot Work
  • The Dual-port System Allows Water to be Circulated Between Seals, Providing Improved Cooling During Pre/Post-Weld Procedures
  • Uses Less than a Gallon: 3.8L of Test Media - Cutting Down on Fill Times and Reducing Waste/Treatment Expenses.
  • ASME PCC-2 Type IV Testing Device
  • Test Pressures To 2250 PsiG: 155 BarG Between The Seals
  • Available for NPS Ranging from 3/4” to 24”: DN20 - DN600
  • Pressure Tests Performed with Less than a Gallon Of Water

Specifications

Test Pressure

  • 2250 PsiG
  • 155 BarG
  • Upstream pressure rated to 10 PsiG / 0.7 BarG
  • Higher Pressures Available Upon Request

Size Range

  • 3/4” to 48” NPS - DN20 to DN1200
  • Larger Sizes Available Upon Request

Standard Seal Material

  • Urethane
  • Alternate Materials Available

Typical Applications

  • Block & Bleed Plugs are Found in Numerous Applications, Including:
    • Oil, Gas and Chemical Process Plants
    • Offshore Oil and Gas Platforms
    • Shipyards
    • Plant Revamps and Additions
    • Piping Systems, Spools, Pressure Vessels with Flanged Connections
    • Flange Replacement Programs
    • Tie-in Work