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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
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
- 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