Argweld® HotPurge™ Inflatable Pipe Weld Purge Systems for Heat-Treated Pipework have been developed so that pre-heating, welding and post weld heat treatment can be carried out with the purge system in place. The welder can position these systems prior to pre-heating and leave them in place throughout the pre-heating, welding and post-heat treatment cycles, allowing the weld to be purged continuously for up to 24 hours. Using the latest IntaCal® and PurgeGate® technology to inflate the dams, purge the weld zone with the guarantee that the purge dams cannot burst through over pressurization. In addition RootGlo® can be used for accurate positioning of the system precisely under the joint.
The Argweld® HotPurge™ Heat Resistant Pipe Weld Purging Systems are for use where temperatures might rise to 760ºC (1400ºF) and last up to 24 hours. 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.
Available for all pipe diameters from 6 to 96″ (150 to 2440 mm).
These high quality Pipe Weld Purging Systems are ideal for the welding of pre-heat and post-weld heat treated chrome steels such as P11, P22, P91, P92 CMV etc.
Argweld® HotPurge™ Heat Resistant Inflatable Pipe Weld Purging Systems come with an innovative central band for easy positioning inside the pipe. This RootGlo® band will gather light prior to placing into the pipe and will glow for many hours of use.
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.