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Double Block & Bleed (DBB)

GripSafe® Double Block and Bleed Product Illustration

6" - 24"* DBB Plug

USA-Industries-Inc-GS-small-dbb-install-manual-1

3/4" - 4"* DBB Plug

*Larger sizes and custom configurations available upon request.
Smaller sizes availability date pending.

GripSafe® Large DBB
Instruction Manual

GripSafe® Small DBB
Instruction Manual

GripSafe® DBB
Trifold Brochure

GripSafe® GS DBB
Line Sheet

GripSafe® Product
Line Sheet


UNMATCHED SAFETY & RELIABILITY

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With its unprecendented patented design, GripSafe's independent self-gripping technology virtually eliminates the risk of plug ejection from the moment it's inserted into the pipe, without tightening a single nut.

The innovative system distributes equal loading across the gripping wedges ensuring maximum surface contact and holding capabilities. As pressure increases behind the plug, the wedges grip tighter. Even in pipe diameters that are asymmetrical, each wedge independently adapts to variances within the pipe. Coupled with its automatic gripping feature upon installation, GripSafe takes “self-gripping” to a new level.

GripSafe plugs weigh less on average than competitive products. Significant weight differences exist as plug sizes increase, reaching upwards of 50% weight reductions in larger sizes without sacrificing holding capabilities.

Unlike competitive products which rely on serrated jaws to bite into the pipe for holding purposes, GripSafe uses a specially designed wedge system that grips the pipe without scarring the surface. Within rated pipe pressures, GripSafe leaves no damage, no need for clean up, no stress risers or crevices for corrosive leak paths to form.

GripSafe plugs utilize a proprietary texture on the gripping wedges that can be used on any metal type with no carbon contamination. Therefore, in contrast with other plugs, GripSafe requires no alternate parts for use in stainless and other alloy pipes where cross contamination is a concern.

PLUG APPLICATIONS

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Pressure can be placed between the two seals to test weld-neck flanges by means of hydrostatic pressure, checking for hoop stress failure, weld leaks and/or pinhole leak paths while providing protection from any unexpected pressure discharge.

Dual port design provides enhanced cooling by circulating water between the seals during pre/post weld processes (on 6”+ models).

Increase safety by preventing exposure to hydrocarbon or other process leaks. Eliminate risk of injury to personnel in the event of inadvertent valve openings, valve leaks, or other pressure equipment failures upstream.

Pressure between the two seals verifies seal integrity and ensures the plug’s seals are effectively isolating the pipe.

Feed inert gases through the vent pipe, into a vessel, for back-purging welds or to remove oxygen for other processes.

PLUG RATING SPECIFICTIONS

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Temperature Range

  • -10° to 170°F - Continuous
  • 200°F - Intermittent
  • Patents & Trademarks

    • US PATENTS: 9,927,058 | 9,810,364 | D894,349 | 10,746,339
    • CANADIAN PATENT: 3,004,787
    • CANADIAN INDUSTRIAL DESIGN: CA 186293
    • EUROPEAN PATENT: 3,377,797 B1
    • EUROPEAN UNION DESIGN REGISTRATION: 00628264-001
    • INTERNATIONAL TRADEMARK REGISTRATION: 1550298
    - Other US and Foreign Patents Pending

    Industry Compliance

  • ASME B16.5, ASME B31.1, ASME B31.3
  • Meets ASME PCC-2-2018 standards