PurgElite Purge Bladders and Dams

PurgElite, a range of low-cost tube and pipe purging systems helps to achieve a clean, oxide-free, zero-color weld in just minutes, available from 1 in. (25 mm).

The system is inserted into the pipe and positioned with the aid of the luminous RootGlo. When the gas flow is started, the dams inflate, sealing inside the pipe and argon then purges the interspace automatically. A Weld Purge Monitor connection is standard on each PurgElite, so the welder can monitor the oxygen content of the purge volume throughout the entire welding process.

Each PurgElite features IntaCal, a purge gas feed device, which means there is no complicated valving for the operator to adjust and set. Quick connect/disconnect fittings with collets and ‘O’ ring seals for gas-tight sealing, fitted with anti-release circlips are fitted to all systems to prevent parts accidentally separating inside pipes.

HFT’s PurgeGate Valve is available as an accessory, a unique one-way valve suitable for all types of Inflatable Pipe Weld Purging Systems. PurgeGate regulates the gas flow and pressure during weld purging to prevent the dams from overinflating and bursting. Heat Resistant Covers with a rating of up to a temperature of 572°F (300ºC) are available as accessories to protect the inflatable dams. These are attached with ties sewn into the covers.