Weld Purging is the act of removing oxygen from the vicinity of a weld before, during and after welding. The weld zone is usually confined, with the oxygen level being monitored to ensure it is reduced to a level where welds and their heat affected zones will not be affected by oxygen, leading to loss […]
Effective plugging and sealing of pipes in heavy-duty applications is essential, especially in refineries, offshore operations, plumbing operations as well as domestic and industrial water activities where the plug is likely to be immersed in chemicals or exposed to high temperatures. The Pipestoppers® Division at Huntingdon Fusion Techniques HFT® manufacture a Range of heavy-duty Aluminium […]
It is important when welding metals such as stainless steel, titanium and zirconium that the welding zone is purged of oxygen even as low as 10 parts per million (ppm) before, during and immediately after welding, in order to achieve a clean, oxide free, zero colour weld. Weld Purging Experts Huntingdon Fusion Techniques HFT® now […]
Weld Purging closure welds can be challenging, especially when using a tandem inflatable system to reduce the volume being purged. Often, the system becomes irretrievable and therefore other weld purging methods have to be used, to avoid unwanted products in the pipe. The innovative Weld Purge Dams from Huntingdon Fusion Techniques HFT® help to avoid […]
Pipe plugs and stoppers are in use globally for a large variety of applications, including leak testing, weld purging, debris stopping and pipe freezing for repair or maintenance work for thousands of different industries. Manufacturing a wide range of plugs and stoppers of up to two meters in diameter, Huntingdon Fusion Techniques HFT®’s Pipestoppers® Division […]
Many welders today are still using 2% red-tipped thoriated Tungsten Electrodes, which contain radiotoxic thoria and therefore can be dangerous to health of those exposed to it, especially in the dust format from grinding the tips. To overcome the accumulated hazardous thoria conditions, whilst maintaining a very high life expectancy for the Tungsten Electrode, Huntingdon […]
Producing zero colour tube and pipe welds when joining metals such as stainless, duplex and chrome steels, titanium and zirconium can be challenging and at times can prove costly. In many industries today the welding zone has to be purged of oxygen down as low as 100 ppm, or even lower in industries such as […]
There is a large number of pipe plugging and blocking requirements within a variety of industries such as Oil & Gas, Construction, Plumbing, Shipbuilding, Mining, Power etc., for duties such as repair work, leak testing, weld purging and debris stopping. One major concern being the entry of debris into pipes during operations. The Pipestoppers® Division […]
Titanium, stainless steel and other corrosion resistant materials are used for tubing and pipework especially where there are highly corrosive materials flowing through them. When such pipework is welded for joining or repairs, it is necessary to protect the material in and close to the weld joint, carried out by a technique called Weld Purging. […]
Weld Purging is the act of removing oxygen from the vicinity of a weld before, during and after welding metals such as stainless steel, titanium, zirconium and nickel alloys. Without Weld Purging, the weld would be left oxidised and discoloured, which could then lead to loss of corrosion resistance and metallurgical imperfections. In order to […]
During the welding of tanks, chambers and vessels, an uneven root profile can cause product entrapment that may contaminate a process as well as interrupting flow characteristics. Many weld joints require a controlled underbead profile of the first root pass. Where manual welding cannot control the weld root profile sufficiently, or when an automatic weld […]
Public buildings, factories, manufacturing plants, power stations, hotels, sports facilities, stadiums, apartment blocks and all commercial constructions may have pipework systems such as sprinkler systems for example, that are full of water or other fluid that need to be completely drained for the smallest of repair. Such drainage costs time, money with respect to the […]
