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CW Product Cat UK
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welding
hose
. the welding hose is an important part of the equipment from a safety perspective. in addition, this "last link in the gas
distribution" must maintain the gas's purity through to the point of consumption. aga's welding and propane hoses are manufactured in accordance with en559. the hoses are marked with gas type, dimensions and working pressure. all hoses are supplied in 40 m reels, except for black and blue/orange hoses. → red hose = acetylene → blue hose = oxygen → orange hose = propane / hydrogen → black hose = shielding gas for gas shielded arc welding gas shielded arc welding is one of the welding processes that uses shielding gas as protection and a welding parameter: in the first in- stance tig, mig/mag and plasma welding. the final link in the gas distribution. the welding hose has an important role as the "final link in the gas distribution". in order to maintain the purity of the shielding gas through to the welding process (the gas cap), the welding hose must be of such quality that a minimum of the surrounding air can diffuse into the hose and increase the levels of oxygen and moisture in the shielding gas. safeguarding pure shielding gas for the welding process applies to all gas shielded arc welding, and is an absolute condition if quality requirements are stipulated for the welded product. a high quality welding hose, couplings and installation always benefit welding economy. as the gases react differently to the rubber material in the hoses, the hoses are manufactured according to the different properties of the gases. it is therefore important to use the correct hose for the type of gas in question. note! how the shielding gas atmosphere and the melt can be contaminated during gas shielded arc welding blow clean the cylinder valve before fitting the regulator contaminated shielding gas due to e.g. defective hoses condensation due to excessively cold refrigerant (water-cooled welding gun) ejector effect due to excessive gun angle draughts. sensitivity increases at excessively low gas flow dirt, oxide, condensation solidified weld basic material air can enter through → turbulence due to spat- ter in the gas cap or excessively high gas flow → excessively low gas flow → disturbed arc welding wire accessories. accessories
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