The European norm UNI 7683-7684 specifies the requirements for unalloyed carbon steel welded round galvanised tubes with tapered gas thread. The tubes are intended for ducting of cables in explosion-proof electrical installations (AD-PE).
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Manufacturing process:
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Longitudinal welding |
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Steel:
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Fe360 |
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End finishings:
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Tapered gas thread as per UNI 6125 with socket as per UNI 7684 or American NPT thread |
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Size range:
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From Ø 1⁄2” (21.3 mm) to Ø 4” (114.3 mm) |
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Manufacturing thicknesses:
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Standard as per the table |
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Surface finishings:
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Hot-dip galvanized as per EN 10240 |
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Standard length:
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6000 mm |
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Quality controls:
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Electromagnetic Non Destructive Testing (Eddy Current) as per EN 108931 Tensile test Bending test |
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Standard marking:
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Marked with blue ink as per norm requirements |
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Documents:
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Certificate of conformity 2.2 as per the EN 10204 norm. 3.1B certificate on request |
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