GTA/TIG welding long pipelines made of stainless steel can be found in many different industries including Oil and Gas, Nuclear and LNG. The use of stainless steel can offer many advantages including corrosion resistant properties and cost-effectiveness of the alloy.
With Stainless Steel being a reactive material, the oxygen in the protective gas must be purged down to under 100 ppm before, during and after welding, which can cause some difficulties in long pipelines.
Celebrating their 45th Anniversary in 2020 as International Leaders in Weld Purging, Huntingdon Fusion Techniques HFT®’s PurgEye® 1000 Distance Weld Monitor now makes it possible to have an immediate reading for the weld purge zone up to 1,000 metres away!
Luke Keane, Technical Sales Manager for HFT® said: “If exhaust gas from a normal weld purge system is piped down a hose to a distant measuring instrument, it may take many minutes, or even hours in some cases, to reach the sensor. The exhaust gas may even be contaminated on the way by outgassing from the walls of the hose material or from air drawn in through a leaky connection.”
“The PurgEye® 1000 Weld Purge Monitor® has been designed and developed specifically to overcome such difficulties and has a sensor placed immediately next to the weld purge site with electrical connection to monitoring equipment. This way, the operator can be certain that the weld purge reading is correct and that the joint will not be adversely affected by oxidation, allowing welders to achieve that sought-after zero colour weld without loss of corrosion resistance.”
With a unique stainless steel sensing head that can be fitted onto any Pipe Weld Purging System or simply left in the welding zone, the PurgEye® 1000 can measure oxygen levels up to 1 km away.
The PurgEye® 1000 is one of HFT®’s five Weld Purge Monitors® to now feature PurgeNet™, a networking device designed for communicating the current oxygen reading from the Monitor, to another piece of equipment, such as the visual warning accessory PurgeAlarm™ or a Dew Point Monitor with additional inter-pass temperature monitoring.
The PurgEye® 1000 measures oxygen levels from 1,000 parts per million (ppm), right down to 1 ppm (accurate to 10 ppm), ideal for welding metals such as stainless steels, duplex steels, titanium and zirconium where oxide free, zero colour welds are required time after time.
Made in Wales – Manufacturer of the Year 2019!
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