Pressure Seal is an extension technology of Pressure Sealing, focusing on long-term sealing of pipelines/equipment without shutdown or pressure release, commonly used in scenarios requiring long-term reliable sealing.

Core Differences (from conventional pressure sealing)

Routine pressure seal is mostly for temporary emergency, while pressure sealing is more focused on long-term sealing effectiveness.

Pressure seal plugging is often combined with welding, flange connections, etc., suitable for systems requiring long-term operation.

Primary Application Scenarios

Long-term repair for pipeline corrosion perforation and weld cracking, particularly suitable for transmission pipelines.

Sealing off leaks in equipment bodies post-leakage, such as local repair of damage in pressure vessels and storage tanks.

Temporary sealing during pipeline rerouting and branch connection, combined with sealing operations.

Safety Core Requirements

Welding-sealing should use anti-splatter technology to prevent ignition of leaked medium.

During operations with high-pressure and toxic media, real-time gas detection equipment must be provided, and a designated person must be on-site supervision throughout the process.

Barrier materials must be long-term compatible with the medium, to avoid aging,