Verification and Calibration of Flow Meters at Northern Works
Johannesburg Water
Compulsory briefing — you must attend to bid
20 July 2026 at 09:00 · Northern Wastewater Treatment Works (Diepsloot)
In plain English
Verification and calibration of existing flow meters at Northern Works. Bidders must be registered on the Central Supplier Database and provide a valid B-BBEE certificate or sworn affidavit.
Always check the official documentDescription
This tender is for the verification and calibration of existing flow meters at the Northern Wastewater Treatment Works in Diepsloot. Issued by the relevant municipal authority, the project requires the successful bidder to perform in-situ calibration on various flow meter types, including ultrasonic, magnetic, and inline meters. Key deliverables include ensuring accuracy within a 5% error tolerance, providing detailed reports for each meter, and issuing official calibration results certificates. The work must be completed according to the specifications outlined in the Bill of Quantities. A mandatory site briefing is scheduled for 20 July 2026 to allow bidders to inspect the site. All work must be completed within the validity period of 60 days from the closing date of 27 July 2026.
What you need to qualify
- CSD registration — Registration on the Central Supplier Database — required to do business with government.
- Tax clearance — A valid SARS tax compliance status (PIN) showing your tax affairs are in order.
- B-BBEE certificate — A B-BBEE certificate or sworn affidavit confirming your contribution level.
- Other registration — An industry registration the tender requires (e.g. PSIRA, NHBRC, a professional or trade licence).
Full requirements
- Registered on the Central Supplier Database (CSD)
- Valid Tax Clearance Certificate or SARS PIN
- Valid B-BBEE certificate or sworn affidavit
- Certified Metrologist in liquid flow metrology
- Proof of one successfully completed flow meter calibration project
- Attendance at mandatory site briefing with required PPE
Contact & how to apply
Name: Nompumezo Sobhekwa
Email: nompumezo.mramba@jwater.co.za
Phone: 011-688-1656
How to apply: Quotations must be submitted in PDF format on the official company letterhead via the eTender portal at https://www.etenders.gov.za/.
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