2021 China New Design Underground Pipe Line - Fusion-Bonded Epoxy Coatings Awwa C213 Standard – Spiral

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2021 China New Design Underground Pipe Line - Fusion-Bonded Epoxy Coatings Awwa C213 Standard – Spiral Detail:

Physical properties of epoxy powder materials

Specific gravity at 23℃: minimum 1.2 and maximum 1.8
Sieve analysis: maximum 2.0
Gel time at 200 ℃: less than 120s

Abrasive blast cleaning

Bare steel surfaces shall be abrasive blast-cleaned in accordance with SSPC-SP10/NACE No. 2 unless otherwise specified by the purchaser. The blast anchor pattern or profile depth shall be 1.5 mil to 4.0 mil(38 µm to 102 µm) measured in accordance with ASTM D4417.

Preheating

Pipe that has been cleaned shall be preheated at temperature less than 260℃, the heat source shall not contaminate the pipe surface.

Thickness

The coating powder shall be applied to the preheated pipe at a uniform cure-film thickness of not less than 12 mils(305μm) on the exterior or interior. The maximum thickness shall not exceed a nominal 16 mils(406μm) unless recommended by the manufacturer or specified by the pruchaser.

Optional epoxy performance testing

The purchaser may specify additional testing to establish epoxy performance. The following test procedures, all of which shall be performed on production pipe test rings, may be specified:
1. Cross-section porosity.
2. Interface porosity.
3. Thermal analysis (DSC).
4. Permanent strain (bendability).
5. Water soak.
6. Impact.
7. Cathodic disbondment test.

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Our well-equipped facilities and great excellent command throughout all stages of generation enables us to guarantee total customer fulfillment for 2021 China New Design Underground Pipe Line - Fusion-Bonded Epoxy Coatings Awwa C213 Standard – Spiral , The product will supply to all over the world, such as: Jordan, Chicago, Macedonia, Our products are exported worldwide. Our customers are always satisfied with our reliable quality, customer-oriented services and competitive prices. Our mission is to continue to earn your loyalty by dedicating our efforts to the constant improvement of our items and services in order to ensure the satisfaction of our end-users, customers, employees, suppliers and the worldwide communities in which we cooperate.

Longitudinally Welded