- Acciaitubi
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- Welded conduit tubes
Welded conduit tubes
UNI 7683|UNI 7684
For the passage of cables and explosion-proof electrical systems (ad-pe)
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).
Manufacturing process
longitudinal welding
Steel
Fe360.
Scarfing
external
Internal bead height
as per the norm
Size range
from ø 1”1/2 (48,3 mm) to ø 4” (114,3 mm)
Thickness range
as indicated in the table attached
End finishings
tapered gas thread as per UNI 6125 with socket as per UNI 7684 or American NPT thread
galvanised sleeve screwed at one end and the other end protected by a plastic cap
Surface finishings
hot-dip galvanized as per EN 10240 plain ends hot-dip galvanized as per EN 10240 threaded with and without sleeve
Standard length
6000 mm.
Quality controls
electromagnetic Non Destructive Testing (Eddy Current)
tensile test
bending test
Standard marking
marked with blue ink as per norm requirements
Documents
certificate of conformity 2.2 as per the EN 10204 norm. 3.1 certificate on request
Applications
Electrical systems
Finishings
Painting
Hot-dip galvanising
Grooving
Threading
Lengths and cutting to size
Marking and punching
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