TSHAKHUMA DAM – 250NB PIPE LINE PROJECT – PO NUM: PO 0000116

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2. Fabrication Details

All fabrication work was executed at the VIP Metals workshop under EN specifications, ensuring compliance

with relevant structural and material standards.

• Pipe size: 250NB SCH20
• Total length: 210 meters
• Material specification: Stainless/Carbon steel as per EN standards
• Welding standard: All welding procedures and qualifications were conducted in accordance with AWS D1.1 structural welding code.
• Inspection: Dimensional and visual inspections were performed at all stages of fabrication to ensure compliance with design and quality requirements.

3. Corrosion Protection

Corrosion protection was carried out by a third-party applicator in accordance with DWS9900 specifications.

The coating system was applied to achieve high durability and protection against environmental and water-

related corrosion.

• External coating: 350 microns H10 Brilliant Green paint
• Internal coating: 450 microns Poly-glass lining
• Quality assurance: Coating thickness and adhesion tests were conducted to verify conformity with DWS9900 standards.

4. Delivery and Handover

All fabricated pipeline sections were supplied and delivered to site as a complete turnkey supply. Items were

properly tagged, protected, and handled to prevent damage during transport and offloading.

5. Conclusion

The fabrication and supply of the 250NB SCH20 pipeline were successfully completed in accordance with EN

and AWS standards. Corrosion protection met all DWS9900 requirements, ensuring the system’s reliability and

longevity for operational use at the Dam Pump Station and Reservoir.

Fabrication