Non-Gripping
Double Block & Bleed
Money.
Rent.
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| Specification | Details |
|---|---|
| Body Construction | Lightweight aluminum/steel assembly for strength and portability |
| Portability | Compact, easy to position, and designed for quick deployment |
| Pipe Protection | Will not damage internal pipe walls during installation or removal |
| Testing Requirements | Small test volume only — compatible with simple hand pump operation |
| Monitoring Capability | Allows monitoring of isolation zone and upstream pressure to prevent backpressure during testing |
The DBB pipe plug features two separate sealing areas that positively isolate upstream gases from internal piping — making modifications, repairs, and hot work safer, quicker, and easier. A vent between the compression seals allows verification of seal integrity and pressure testing of hydrotest welds by positioning the weld between the two seals.
Custom 44" Double Block and Bleed Isolation Plug from USA Industries
Ask Us About our Double Block & Bleed, Best-In-Class GripSafe®ST Test Plug
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.
ISOLATION/TEST PLUGS VS. WELDING END-CAPS
Isolation/Test plugs deliver faster turnarounds, lower costs, improved safety, and greater flexibility than welding end caps on pipe spools—transforming pressure testing from a bottleneck into a streamlined operation.
THE COMPARISON
GSST Isolation / Test Plugs
RecommendedWelding End-Caps
Legacy MethodWHY PLUGS WIN
Faster Turnarounds
Eliminate welding and grinding time. Go from installation to pressure testing in minutes, not hours—keeping your project schedule on track.
Lower Total Cost
Reusable plugs replace single-use caps, welder labor, consumables, and post-weld inspections. The ROI is immediate and compounding.
Improved Safety
Zero hot work means no fire watches, no arc flash risk, no fume exposure, and no hot work permits. A fundamentally safer process.
Greater Flexibility
Quickly adapt to changing test configurations. Reposition plugs across different spools and pipe sizes without rework or waste.
THE BOTTOM LINE
Isolation/Test plugs transform pressure testing from a bottleneck into a streamlined operation—delivering speed, savings, safety, and flexibility that welding end-caps simply cannot match.
Technical Documentation
Frequently Asked Questions
Yes! The Double Block & Bleed plug has a vent in between the compression seals that lets you to verify the seals integrity and pressure test / hydrotest welds by positioning the weld between the two seals.
The DBB plug operates in working pressures to 2,250 PSI (155.2 Bar). Use it to monitor isolation zone and upstream pressure, preventing backpressure build-up during tests.
The sealing material is made of urethane.
Our standard urethane seals continuous operating temperature are rated at 180°. We also offer high-temperature seals upon request.
Yes, we have several extended reach sizes available. Just let us know what reach you need.
Why USA Industries?
40+ years of manufacturing excellence and innovation
Fastest Turnaround
Same-day shipping on stock items. Custom orders in days, not weeks.
Manufactured In-House
U.S. produced steel, PMI verified, QC certified.
ISO 9001:2015 Certified
Quality-driven manufacturing process ensures excellence.
Engineering Innovation
Precision-Engineered Industrial Solutions — Delivered Fast!
100% USA Materials
All raw materials sourced from American mills.