TDW Rolls Out SHiiELD Double Isolation System

TDW has launched its SHiiELD pipeline isolation system, introducing a double independent isolation and bleed design aimed at improving safety, reducing emissions, and minimizing downtime during pipeline maintenance.

(P&GJ) — T.D. Williamson has launched SHiiELD™, a new pipeline isolation system designed to provide double independent isolation and bleed (DiiB) during maintenance and repair operations, the company said Jan. 20.

The SHiiELD system is engineered with two independently anchored modules and energized seals, creating a redundant isolation barrier intended to exceed current safety and environmental standards. TDW said the technology delivers leak-proof performance while offering up to four times the throughput area of traditional double block-and-bleed solutions, helping reduce operational downtime and fugitive emissions.

According to TDW, SHiiELD enables certified leak-proof isolation with remote activation and monitoring, allowing operators to verify isolation integrity while minimizing personnel exposure and operational risk.

“SHiiELD is changing the game of how operators isolate pipelines while meeting their emissions and safety goals,” said TDW Chief Executive Officer Bob McGrew. “By combining true redundancy with best-in-class throughput and remote activation, SHiiELD ensures the safest possible isolation for personnel and the environment. This innovative technology underscores TDW’s commitment to advancing pipeline safety and operational efficiency.”

TDW said the system is designed to support evolving regulatory expectations for safety and emissions control, while improving efficiency during pipeline isolation projects.