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Low Pressure Isolation & Testing Products

Heavy Duty
Isolation Plug

Available to Rent or Buy
Save
Money.
Rent.
Lower upfront cost • No storage • Reconditioned every turnaround

USA Industries' uniquely designed Heavy Duty Isolation Pipe Plug eliminates the need to weld on end caps or plates for isolation. All pipe plugs are designed for simple and safe installation. As you tighten the isolation plug's nut, the metal on both ends of the seal ring compress and force the seal to expand. This process creates a tight seal against the inside of the pipe. In-stock pipe plugs ship the same day.

To Order Call: (800) 456-8721 — Specify:

  • Size
  • Pipe Schedule
  • Quantity Needed
  • Rental or Purchase
  • Necessary Delivery Date
Pressure Testing Solutions

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.

Head to Head

THE COMPARISON

GSST Isolation / Test Plugs

Recommended

Welding End-Caps

Legacy Method
▲
Speed
Install in minutes with no hot work. Immediate test-readiness with rapid insertion and removal.
▼
Speed
Requires welding, cooling, then grinding off after test. Each cycle adds hours of labor and downtime.
▲
Cost
Reusable across multiple tests. No welders, no consumables, no post-test grinding or NDE required.
▼
Cost
Single-use caps, welder labor, consumable materials, grinding, and follow-up inspections all drive up costs.
▲
Safety
No hot work permits needed. Eliminates arc flash, fumes, and burn hazards. Cold installation process.
▼
Safety
Open flame, arc flash, fumes, and hot metal. Requires hot work permits, fire watches, and PPE protocols.
▲
Flexibility
Quickly reposition and reuse plugs across different pipe sizes and test configurations as needed.
▼
Flexibility
Each cap is permanently welded and must be destructively removed. Changes require starting over.
▲
Quality Impact
No heat-affected zones. When installed correctly, low risk of contamination or distortion to the pipe spool material.
▼
Quality Impact
Welding introduces heat-affected zones, potential distortion, and requires post-weld NDE verification.
Key Advantages

WHY PLUGS WIN

01

Faster Turnarounds

Eliminate welding and grinding time. Go from installation to pressure testing in minutes, not hours—keeping your project schedule on track.

02

Lower Total Cost

Reusable plugs replace single-use caps, welder labor, consumables, and post-weld inspections. The ROI is immediate and compounding.

03

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.

04

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.

HEAVY DUTY INDUSTRIAL ISOLATION PLUG PRODUCT FEATURES:

  • We offer standard and custom configurations to suit your specific application
  • Manufactured under a Quality Assurance Program certified to ISO 9001:2015
  • Engineering expertise to help you develop other non-standard sizes, configurations and applications
USA-Industries-8-Foot-Custom-Isolation-Plug

Custom Engineered & Manufactured 8' Isolation Plug

Technical Documentation

Frequently Asked Questions

Why USA Industries?

40+ years of manufacturing excellence and innovation

Fast Turnaround

Fastest Turnaround

Same-day shipping on stock items. Custom orders in days, not weeks.

In-House Manufacturing

Manufactured In-House

U.S. produced steel, PMI verified, QC certified.

ISO Certified

ISO 9001:2015 Certified

Quality-driven manufacturing process ensures excellence.

Engineering-Innovation

Engineering Innovation

Precision-Engineered Industrial Solutions — Delivered Fast!

USA Materials

100% USA Materials

All raw materials sourced from American mills.

Ready to Order?

(800) 456-8721
Call Now Request Quote Online