For Design, Manufacture. Installation and Commissioning of the New Sulphuric Acid Bulk Tank at Duvha Power Station for a Period of 10 Months.

E1740GXMPDUVR

See details below or the tender documentation

Tender Closed on: 2025-10-27 10:00

Boilermaking, Fabrication and Engineering Services, Coal Power Plant Construction, Maintenance and Operation, Construction and Maintenance of Dams and Reservoirs, Steel Structures

Emalahleni, Mpumalanga

ESKOM

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Tender Number: E1740GXMPDUVR
Department: ESKOM
Tender Type: Request for Bid(Open-Tender)
Province: Mpumalanga
Closing Date: Monday, 27 October 2025 - 10:00
Place where goods, works or services are required: Duvha Power Station - Mpumalanga - Duvha - 2000
Special Conditions: N/A
ENQUIRIES:
Contact Person: Nokuthula Ntshingila
Email: [email protected]
Telephone number: 011-800-2874
FAX Number: N/A
BRIEFING SESSION:
Is there a briefing session?: Yes Is it compulsory? Yes
Briefing Date and Time:
Briefing Venue: https://teams.microsoft.com/l/meetup-join/19%3ameeting_ZTczMjM5YTctNTQ1OC00NTA3LTkyYzktZmI3NzAzNTg5

This tender is also available from www.etenders.gov.za


Tender Summary

Objectives, Scope and Technical Requirements of the Tender

Objectives

The primary objective of this tender is to design, manufacture, install, and commission a new sulphuric acid bulk tank at Duvha Power Station. The new tank aims to replace the existing deteriorated tank, which is out of service due to corrosion, to enable safe storage and handling of sulphuric acid for the station’s cooling water system. This will facilitate acid dosing to minimize scale formation, improve heat transfer efficiency, and prevent environmental contamination caused by acid leaks.

Scope

  • Design & Manufacturing: Develop a sulphuric acid storage tank compliant with standards (BS1515 part 1-1965 or PD5500), including all accessories, piping, and structural supports.
  • Transport & Installation: Transport the new tank to Duvha Power Station, install it along with all associated pipework, and refurbish or replace existing civil and structural elements such as the concrete bund, catch pits, manholes, and access platforms.
  • Civil & Structural Works: Repair and upgrade the concrete bund, repair damaged slabs, and ensure corrosion protection of structural steel and concrete surfaces.
  • Mechanical & Piping Works: Install mechanical components, valves, pipework, and accessories as per drawings and specifications, including testing and commissioning.
  • Electrical & Control Systems: Install instrumentation, level probes, control systems interfacing with the station’s DCS, and ensure proper electrical connections and testing.
  • Quality & Safety: Comply with Eskom’s quality management, safety, health, and environmental standards, including inspections, testing, and documentation.
  • Environmental & Waste Management: Manage hazardous waste, water, and air emissions in accordance with legislation and Eskom policies.
  • Training & Handover: Provide operational and maintenance training to Eskom staff, prepare as-built drawings, and ensure defect rectification before handover.

Technical Requirements

  • Design Standards: Comply with BS1515 part 1-1965 or PD5500, and relevant Eskom standards for corrosion protection, welding, and structural integrity.
  • Tank Specifications: Capacity approximately 22 m³, height 5200 mm, diameter 2220 mm ID, design pressure 250 kPa, working temperature ATM, test hydraulic pressure 498 kPa, design temperature 50°C.
  • Materials & Components: Use of ISO 9001 certified suppliers, corrosion-resistant materials, and appropriate valves, piping, and accessories as per drawings and specifications.
  • Civil & Structural Works: Reinforced concrete bund, repair of damaged slabs, installation of waterproof sheeting, and corrosion protection coatings.
  • Mechanical & Piping: Installation of acid-resistant pipework, valves, level probes, and safety devices, with pressure testing and certification.
  • Electrical & Control: Interface with DCS, installation of instrumentation, calibration, and testing in accordance with Eskom standards.
  • Inspection & Testing: Non-destructive testing (NDT), pressure tests, weld inspections, and certification prior to commissioning.
  • Documentation & Handover: As-built drawings, operation manuals, maintenance schedules, and defect rectification reports.
  • Environmental & Safety: Compliance with Eskom SHEQ policies, hazard assessments, waste disposal, and safety procedures during all phases.
This summary is AI generated. Download the tender documents for all the information.

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