A defined purge boundary
Localize the protected volume around the weld region and manage the paths by which surrounding air may enter.
PurgX™ Pro Series
Control the
atmosphere.
Protect the weld.
A patented purge-chamber platform designed to establish a controlled environment around the weld region during welding and cooling.
Development & industry evaluationDiscuss a PurgX evaluation
View full imageConcept visualization. Commercial configurations are under development.
The purpose
The weld depends
on its environment.
On contamination-sensitive materials, practical shielding challenges can come from joint geometry, access, leakage paths, gas distribution, and the need to protect heated material after the arc stops.
PurgX is designed to form a localized chamber around the joint so those atmospheric conditions can be controlled and evaluated as part of the welding system.
PurgX™ Pro Series
A closer look
at the design.
Explore the chamber from another angle and see the assembly components in a separated view.
View full imageThe chamber assembly.
A view of the chamber exterior, closure hardware, and connecting lines.
View full imageThe components, revealed.
A separated view showing the relationship between the assembly sections.
Design principles
Atmospheric control,
considered as a system.
Performance must be evaluated against the material, geometry, procedure, and conditions of the intended application.
Controlled gas distribution
Direct shielding gas through the protected region with attention to coverage and displacement behavior.
Sealing & controlled venting
Evaluate sealing and venting together to support a stable purge environment.
Protection during cooling
Maintain the intended atmospheric boundary while the weld and surrounding heated material cool.
Planned configurations
Built around
the welding geometry.
The platform’s modular direction includes external and internal pipe-purge configurations.
External pipe
purge chambers
Designed for pipe butt welds and other external joint geometries requiring a localized, controlled atmosphere.
Internal pipe
purge chambers
Designed to stabilize the internal purge environment during pipe welding and root-pass execution.
The platform is progressing from prototype development toward commercial manufacturing. Configuration, suitability, evaluation scope, and availability are discussed individually.
Industry collaboration
Bring the application.
Define the evaluation.
PWI welcomes discussions with fabricators, manufacturers, and technical teams interested in evaluating the platform.
- Material grade, joint geometry, and access
- Current purge method and observed limitations
- Required shielding and cooling protection
- Procedure requirements and evaluation criteria
PurgX questions
From concept to application.
Is PurgX currently available to order?
Commercial configurations remain under development. Contact PWI to discuss the application, current status, and possible evaluation or collaboration arrangements.
Does the chamber replace a qualified welding procedure?
No. The purge system is one part of the welding setup. Procedure requirements, welder technique, preparation, monitoring, and project acceptance requirements still apply.
Can PWI evaluate our current purge setup as a separate service?
Yes. Purge configuration and atmospheric-control evaluation can be scoped around your existing equipment and application.
Explore purge evaluationDeveloped by Travis Field
Welder. Inventor.
Seven patent applications filed across Travis’s invention portfolio. PurgX is covered by U.S. Utility Patent No. 12,420,351 B1.
Explore the inventor’s work