Safely isolate hot work from residual upstream gases, and effectively hydrotest newly welded pipe connections using USA's GSST Double Block and Bleed plug
GSST Double Block & Bleed (DBB)
*4ā Schedules 120, 160 and XXH ā all other 4ā schedules employ the larger body style
**Larger sizes and custom configurations available upon request.
1 - Advanced Engineering
2 - Wedge System
3 - Gripping Wedges
4 - Tri-Ply Seals
5 - Less Weight
WORLDS MOST ADVANCED ENGINEERED PIPE PLUG
- Innovative Patented Technology Outperforms Traditional Designs of the Past Six Decades
- 21 Patents Registered in the US & Internationally
- 7 Trademarks Registered in the US & Internationally
- Additional Patents Pending in the USA & Internationally
- 9 Years Dedicated to Research & Development with In-House Engineering
- Combined 67 Years Engineering Experience from Our Professional Industrial Design Team
- Conducted Over 4,000 Load & Pressure Tests
- Five Years of Demonstrated Success in the Field
- Thorough Validation Testing of Design
- GripSafe ST Positioned to Become the New Industry Standard with Confidence
INDEPENDENTLY ACTUATING WEDGE SYSTEM
- Even Distribution of Load Across All Wedges Guarantees Maximum Surface Contact & Holding Capacity
- Addresses Ovality or Irregularity in Pipe Shape
- Wedges Automatically Adjust to Conform to Pipe Wall
- Exceptional Self-Gripping Functionality
- Increased Pressure Strengthens Grip Against Pipe Wall
- Prevents Formation of Damaging Pressure Points
- Automatic Gripping Upon Installation Available in 2 out of 3 Models
GRIPPING WEDGES
- Secure Grip With Exclusive GritlockĀ® Surface Coating Technology
- Utilizes Thousands of Microscopic Contact Points
- Exceptionally Dense and Long-lasting
- Endures Thousands of Full-Cycle Hydro Test Cycles Without Compromising Performance
- Leaves Virtually No Surface Damage to Pipe
- Non-Contaminating Coating Application
- Wedges Compatible With All Alloy Piping Varieties
TRI-PLYĀ® SEALS
- Innovative Multi-Durometer Seal Technology Protected by Patent
ALUMINUM & STAINLESS STEEL BODY ON 10" AND LARGER MODELS
- On average, lighter weight compared to competing models, crafted from aviation-grade aluminum.
CUSTOMER TESTIMONIAL
"GripSafe plugs have been valuable assets on the LNGC site. The quick and easy installation, use, and removal of the plugs have made testing plain end pipe simple. The Lifting Device makes rigging of the larger plugs into position fast, convenient, and safe. The design of the grippers leave little to no marks inside the pipe. Torque values and plug info on the front plate makes plug identification and double-checking for the right plug usage easy. Overall, the GripSafe plugs are an excellent product."
T. Read / Hydro Foreman,
S. Daigle | Global EPC Company
UNMATCHED SAFETY & RELIABILITY
CLICK ON LINKS BELOW TO VIEW DESCRIPTORS
With its exclusive patented design, GripSafe ST features an advanced self-gripping technology that mitigates the chance of plug ejection immediately upon insertion into the pipe, even before nuts are tightened.
The advanced system evenly distributes the load among the gripping wedges, guaranteeing optimal surface contact and secure holding. As pressure mounts behind the plug, the wedges tighten their grip. Regardless of any pipe irregularities, each wedge adjusts independently to ensure plug security and safety. Combined with its automatic gripping function, GripSafe elevates the concept of "self-gripping" to new heights.
On average, GripSafe plugs are lighter than competing products. As plug sizes increase, substantial weight disparities emerge, with larger sizes experiencing reductions of up to 50% in weight without compromising their holding capabilities.
Unlike competing products that rely on serrated jaws or sharp edges to grip the pipe, GripSafe ST features a distinctive wedge system to securely hold the plug in place, while leaving virtually no surface damage and potential need for pipe cleanup.
GripSafe plugs feature GritlockĀ®, an exclusive brazed texture on the gripping wedges suitable for any metal type without introducing carbon contamination. Unlike other plugs, GripSafe doesn't necessitate alternative parts for application in stainless steel and other alloy pipes where cross-contamination poses a concern.
GRIPSAFE ST DOUBLE BLOCK & BLEED PLUG APPLICATIONS
CLICK ON LINKS BELOW TO VIEW DESCRIPTORS
Hydrostatic pressure can be applied between the two seals to examine weld-neck flanges, assessing for hoop stress failure, weld leaks, and/or pinhole leak paths, all while safeguarding against any unforeseen pressure discharges.
Dual port design provides enhanced cooling by circulating water between the seals during pre/post weld processes (on 6ā+ models).
Enhance safety measures by averting exposure to hydrocarbon or other process leaks. Mitigate the potential for harm to personnel in cases of accidental valve openings, valve leaks, or other pressure equipment failures upstream.
Pressure between the two seals verifies seal integrity and ensures the plugās seals are effectively isolating the pipe.
ntroduce inert gases via the vent pipe into a vessel to facilitate back-purging welds or to remove oxygen for various other processes.
Pipe Schedule Chart Link
Patents & Trademarks
Designed, Manufactured & Supplied Exclusively by USA Industries, an ISO 9001:2015 Certified Company.
- US PATENTS: 9,927,058 | 9,810,364 | D894,349 | 10,746,339 | 11,391,404 | 11,408,548 | 11,408,549
- US REGISTERED TRADEMARKS: 6,540,339 | 6,540,338 | 6,2569,105
- CANADIAN PATENT: 3,004,787 | 3,114,389 | 3,086,395 | 3,144,389
- CANADIAN INDUSTRIAL DESIGN: CA 186293
- CANADIAN TRADEMARKS: 1,168,054 | 1,168,053
- EUROPEAN PATENT: EP3377797 B1 | EP386575B1 | EP3728929B1
- EUROPEAN PATENT [Germany]: 602016051864.3
- EUROPEAN UNION DESIGN REGISTRATION: 00628264-001
- EUROPEAN UNION INTERNATIONAL TRADEMARK REGISTRATION #'s: 1567890 | 1550298 | 1550337
- AUSTRALIAN PATENT: 2016355337 | 2018392008 | 2022231742 | 2020304050
- AUSTRALIAN TRADEMARK NUMBER: 2120735
- Other US and Foreign Patents Pending
A Critical Reminder: Conducting pressure testing poses significant hazards, demanding strict adherence to safety protocols. Ensure all connections, valves, flanges, and fittings are suitable for pressure testing. Verify the compatibility of line ID & Plug Range. Most importantly, never position yourself in front of a test plug or enclosure during testing. Discharge from a plug during testing could result in severe injury or fatality.
Failure to adhere to the complete installation procedures outlined in our operating manuals may lead to personnel injury and equipment damage.
GSST DBB Printable Document Downloads
