Purging system handles high-temp pipe joints

Huntingdon Fusion Techniques HFT® has developed the HotPurge® inflatable pipe purging system for heat-treated chrome and high-strength stainless steel pipe joints in which the temperatures might be as high as 1,400 degrees F for many hours.

The system allows the purge to be continued safely for up to 24 hours during preheating, welding, and postweld heat-treating. It is manufactured as standard with PurgeGate® to prevent overinflation of, and damage to, the dams.

The purge space remains tightly sealed at all times as the inflatable seals maintain an even seal throughout the weld cycle, regardless of pressure rises or excessive flow rates of argon gas.