100% Original Underground Natural Gas Line - Outside 3LPE coating DIN 30670 inside FBE coating – Spiral

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100% Original Underground Natural Gas 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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100% Original Underground Natural Gas Line - Outside 3LPE coating DIN 30670 inside FBE coating – Spiral detail pictures

100% Original Underground Natural Gas Line - Outside 3LPE coating DIN 30670 inside FBE coating – Spiral detail pictures

100% Original Underground Natural Gas Line - Outside 3LPE coating DIN 30670 inside FBE coating – Spiral detail pictures


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We now have a skilled, performance team to supply good quality services for our consumer. We often follow the tenet of customer-oriented, details-focused for 100% Original Underground Natural Gas Line - Outside 3LPE coating DIN 30670 inside FBE coating – Spiral , The product will supply to all over the world, such as: Nigeria, Morocco, Brisbane, With all these supports, we can serve every customer with quality product and timely shipping with highly responsibility. Being a young growing company, we might not the best, but we're trying our best to be your good partner.
  • Good quality and fast delivery, it's very nice. Some products have a little bit problem, but the supplier replaced timely, overall, we are satisfied.
    5 Stars By Freda from Romania - 2017.10.13 10:47
    The company leader recept us warmly, through a meticulous and thorough discussion, we signed a purchase order. Hope to cooperate smoothly
    5 Stars By Jean from Slovenia - 2018.06.05 13:10
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