Unit 4 North Meadows Oldmeldrum Aberdeenshire, AB51 0GQ
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Double Block and Bleed

Double Block and Bleed

Double Block and Bleed Test / Isolation Plug

Positively Isolate Explosive Vapors from Hot Work Areas When Performing Modifications and Repairs

Positively isolate and monitor potentially explosive vapors during hot work, then effectively hydrotest the new weld connection with one tool. The dual port creates a positive pressure barrier between the seals - safely isolating the hot work from any residual upstream gases.

Lightweight aluminum/steel construction makes our DBB plug significantly lighter than other plugs on the market, often allowing operators to circumvent the use of cranes and/or other lifting devices, which can be in high demand during turnarounds. Our 8” schedule 80 plug weighs just 36lbs (16.3kg) compared to other plugs weighing in excess of 100lbs (45.4kg) of the same size.

Test Pressure:

2250 PsiG (155 BarG)
Upstream pressure rated to 10 PsiG (0.7 BarG)

Size Range: 3/4” to 48” NPS (DN20 to DN1200) - larger sizes available upon request

Standard Seal Material: Urethane – alternative materials available upon request

Features:

Monitor potentially explosive vapors during hot work
Dual port system allows water to be circulated between seals, providing improved cooling during pre/post weld procedures
Creates a complete air-free barrier between seals
Lightweight, aluminum and steel construction
Perform pressure tests with less than a gallon (3.8L) of water - reducing fill times, and waste/treatment expenses

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on-site services

Patriot International is provider of on-site services aimed to maintain the integrity of pipework.

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Patriot International has a constantly growing stock of specialist tools and machines at its disposal.

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At Patriot International we believe that training is one of the most important aspects of the industry.

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With our comprehensive pool of specialist technicians and engineers, we mobilize manpower at short notice.

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