The Argweld® HotPurge™ Heat Resistant Inflatable Pipe Weld Purging System comprises a tandem inflatable dam system connected by a volume reducing collar.
Available for all pipe diameters from 6 to 96″ (150 to 2400 mm).
A gas system IntaCal® eliminates old fashioned valves and provides a more accurate and controlled purge gas release.
The inflatable dams and umbilical hose are covered with a heat resistant material and insulated accordingly for use in pipework where the temperatures may rise as high as 760ºC (1400ºF) for 24 hours or more.
Each system incorporates RootGlo®, a band around the centre for positioning purposes which will glow up to 12 hours inside the pipe.
PurgeGate® is the most revoluntionary device on these systems which provides pressure and flow control as well as a guarantee against bursting due to over pressurisation.
Multiple sintered outlets disperse weld purge gas evenly without turbulence.
Some advantages and key features of the Argweld® HotPurge™ Heat ResistantInflatable Pipe Weld Purging Systems.
Flexible for use in pipes, bends, elbows etc.
Excellent seal against pipe walls.
Suitable for 24 hour cycles including pre-heat, welding and post-weld heat treatment.
The size of the Argweld® HotPurge™ Heat Resistant System to be ordered must correspond with the ID of the pipe to be welded. Please confirm the internal diameter of the requested system at the time of placing your order.
The operating range for each purging system is ±12 mm of the stated size.
If the Argweld® HotPurge™ Heat Resistant Inflatable Pipe Weld Purging Systems are used outside the range, the effectiveness to withstand pre-heat temperatures is reduced.