Weld Cap Standard A420 WPL6

When pipeline systems operate in freezing or sub-zero conditions, the integrity of every fitting matters. The Weld Cap Standard A420 WPL6 is a cup shaped butt-weld end cap engineered to permanently seal the open end of a pipe blocking fluid flow, protecting system integrity, and holding firm where lesser materials would fail.

Manufactured from A420 WPL6 low-temperature carbon steel, this end cap is impact tested to withstand temperatures as low as -50°F (-46°C) without becoming brittle or losing its structural reliability. Its standard wall thickness aligns with conventional pipe schedules, making it a straightforward, code compliant fit for existing systems. Once welded in place, the connection is permanent and leak proof, no gaskets, no mechanical fasteners, no compromise.

Summary: 

• Material: A420 WPL6 low-temperature carbon steel, impact-rated to -50°F (-46°C)
• Connection Type: Butt-weld for a permanent, leak-proof seal
• Wall Thickness: Standard (STD), compatible with standard pipe schedules
• Function: Seals open pipe ends, blocks fluid flow, and protects piping systems in extreme cold environments

Applications: 

Common Applications include;

• Cryogenic & Refrigeration Systems: Reliably seals pipes carrying chilled fluids or refrigerants
• Liquefied Natural Gas (LNG): Closes off pipeline segments in gas processing and transport infrastructure
• Offshore & Subsea Pipelines: Terminates or protects pipelines exposed to freezing deep-sea conditions
• Cold Climate Process Plants: Maintains system integrity in industrial environments subject to sustained sub-zero temperatures