Z245.21-14 External Polyethylene Coating Steel Pipe

Z245.21-14 External Polyethylene Coating Steel Pipe

Z245.21-14 PE coated steel pipe intended primarily for buried or submerged service for oil or gas pipeline systems. The coating standard Z245.21-14 covers three coating systems: System A: a coating that consists of an adhesive and a polyethylene outer sheath; System B1: a coating that consists...

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Product Details

Z245.21-14 PE coated steel pipe intended primarily for buried or submerged service for oil or gas pipeline systems.

The coating standard Z245.21-14 covers three coating systems:  

System A: a coating that consists of an adhesive and a polyethylene outer sheath;  

System B1: a coating that consists of a liquid or powdered epoxy primer, a polymeric adhesive, and a polyethylene outer sheath;

System B2: a coating that consists of a powdered epoxy primer, a powdered copolymer adhesive, and a powdered polyethylene outer layer.  

SSAW 3PE Coating Pipe.jpg


The different coating systems have the respective thickness requirements as the follow table.

规格.jpg

 * LD: Low density       *LLD: Linear low density       * MD: Medium density       *HD: High density

The difference between Z245.21-14 Coating Material and DIN30670 Coating Material?

DIN30670 provides an external anticorrosion layer for the structure of three layers of polyethylene (PE).

Among them, the bottom of the three layer structure is epoxy powder, and the top layer polyethylene layer is divided into extruded polyethylene and sintered polyethylene.

The Z245.21-14 includes a two / three layer structure of polyethylene (PE) external anticorrosion layer. Among them, the bottom epoxy layer is divided into two kinds of liquid epoxy and epoxy powder.


3PE Coated Pipe-11.28-3.jpg


Edit by Ms Enya Wang of KRM/BSW


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