2021 China New Design Underground Pipe Line - Outside 3LPE coating DIN 30670 inside FBE coating – Spiral

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2021 China New Design Underground Pipe Line - Outside 3LPE coating DIN 30670 inside FBE coating – Spiral Detail:

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Cangzhou Spiral Steel Pipes Group Co., Ltd have 4 production lines of anticorrosion & thermal insulation to perform the 3LPE coating and FBE coating. The maximum outside diameter can be 2600mm.

The coatings are suitable for the protection of buried or submerged steel pipes at design temperatures of -40℃ to +80℃.

The present standard specifies requirements for coatings that are applied to spirally welded steel pipes and fittings used for the construction of pipelines for conveying liquids or gases.

Applying this standard ensures that the PE coating provides sufficient protection against the mechanical thermal and chemical loads occurring during operation, transport, storage and installation.

Extruded coatings comprise three layers: an epoxy resin primer, a PE adhesive and an extruded polyethylene outer layer. The epoxy resin primer is applied as a powder. The adhesive can be applied either as a powder or by extrusion. For extruded coatings a differentiation is made between sleeve extrusion and sheet extrusion. Sintered polyethylene coatings are single or multi-layer systems. The polyethylene powder is fused onto the pre-heated component until the desired coating thickness is reached.

Epoxy resin primer

The epoxy resin primer is to be applied in powder form. The minimum layer thickness is 60μm.

PE adhesive

The PE adhesive can be applied in powder form or extruded. The minimum layer thickness is 140μm. the peel strength requirements vary depending on whether the adhesive was applied as a powder or was extruded.

Polyethylene coating

The polyethylene coating is applied either by sintering or by sleeve or sheet extrusion. The coating is to be cooled after application to avoid unwanted deformation during transport. Depending on the nominal size, there are different minimum values for the normal total coating thickness. In the case of increased mechanical loads the minimu layer thickess shall be increased by 0.7mm. minimum layer thickness are given in table 3 below.

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2021 China New Design Underground Pipe Line - Outside 3LPE coating DIN 30670 inside FBE coating – Spiral detail pictures

2021 China New Design Underground Pipe Line - Outside 3LPE coating DIN 30670 inside FBE coating – Spiral detail pictures

2021 China New Design Underground Pipe Line - Outside 3LPE coating DIN 30670 inside FBE coating – Spiral detail pictures


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Our eternal pursuits are the attitude of regard the market, regard the custom, regard the science and the theory of quality the basic, trust the first and management the advanced for 2021 China New Design Underground Pipe Line - Outside 3LPE coating DIN 30670 inside FBE coating – Spiral , The product will supply to all over the world, such as: New Zealand, Ukraine, Estonia, Our company has already had a lot of top factories and professional technology teams in China, offering the best products, techniques and services to worldwide customers. Honesty is our principle, professional operation is our work, service is our goal, and customers' satisfaction is our future!
  • The quality of the products is very good, especially in the details, can be seen that the company work actively to satisfy customer's interest, a nice supplier.
    5 Stars By Honey from Luxemburg - 2017.09.16 13:44
    Company director has very rich management experience and strict attitude, sales staff are warm and cheerful, technical staff are professional and responsible,so we have no worry about product,a nice manufacturer.
    5 Stars By Ivy from Milan - 2017.11.20 15:58
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