Spirally welded steel tubes coated with extruded polyethylene

-according to DIN 30 670
-dimensional range 219,1 – 813 mm,
-wall thickness between 5 and 14,2 mm
-fabrication material L245-L415 or another types of steels according to different execution standards.

Types of covering:
-normal type N-n and N-v for the temperatures up to 50°C;
-special type S-n and S-v for the temperatures up to 70°C.

This coverings are applied to a normal wall thickness (n) or strengthened (v).


Covering layer thickness (min.) mm

Outside diameter, mm

219,1-244,5

273-457

508-762

813

Nn/Sn – Normal (n)

2,0

2,2

2,5

3

Nv/Sv – Strenghtened (v)

2,7

2,9

3,2

3,7


The covering composition: triple layer composed from a layer of epoxy resin, adhesive and extruded polyethylene.
Domains of use:

-Transport of gases and natural gases.

Benefits:

-Corrosion resistance;
-Long lasting life duration;
-Insulation durability;
-Good resistance to the defects that may occur during transportation;
-High resistance to mechanical damages with neighboring metallic structures.









 

 



 

Top