Verification and calibration of flow meters at northern works (johannesburg water RFQ JW029NS26-27)

The bidder is required to verify and/or calibrate existing flow meters at Northern Works. Scope includes: in situ verification/calibration of process flow meters, ensuring accuracy within 5% error tolerance, providing a report on allowable tolerances for each flow meter type, and issuing verification/calibration certificates for each flow meter. Successful bidder must submit valid SANAS calibration certificates for clamp-on ultrasonic flow meters (closed conduits) and level gauges/meters (open channels) before starting work.

Closing date: 27 July 2026 at 16:00. Compulsory briefing session: 20 July 2026, 09:00-10:00 at Northern Wastewater Treatment Works (Diepsloot). RFQ validity period: 60 days from closing date.

Supply Chain Management: Thabiso Thabeng ([email protected], +27 79 575 4431) and Phakamani Dube ([email protected], +27 82 326 6068). Johannesburg Water address: Turbine Hall, 65 Ntemi Piliso Street, Newtown, Marshalltown, Johannesburg, 2107. Tel: +27(0) 11 688 1400, Fax: +27(0) 11 688 1528. Website: www.johannesburgwater.co.za.

Submission must be made via the e-Tender Portal (https://www.etenders.gov.za/). Steps: 1. Search for Johannesburg Water or the RFQ reference number. 2. Expand the RFQ information. 3. Start the e-submission process. 4. Log in using CSD credentials. 5. Select supplier. 6. Check the submission checklist and attach all compulsory documents. 7. Confirm and proceed. For portal issues, contact eTenders Contact Centre: +27(0)12 406 9222 / 012 406-9229 / 012 312-5000 or [email protected]. Quotations must be on company letterhead, in PDF format (Word/Excel/pictures not allowed), and include all applicable taxes. Late submissions will not be accepted. Quotations without required brand names will be disqualified. All MBD forms must be duly completed and signed.

Bidders must: 1) Be registered on the Central Supplier Database (CSD). 2) Not be in the service of the state or blacklisted by National Treasury. 3) Submit a valid BBBEE certificate or compliant sworn affidavit. 4) Submit all compulsory returnable documents (Tax Clearance Certificate, MBD forms 4, 8, 9, 6.1, company registration documents, proof of municipal account/lease). 5) Submit the bid on company letterhead, in PDF format only. 6) Quote on all items in the Bill of Quantities.

Scope: In situ verification and/or calibration of existing flow meters at Northern Works. Key deliverables: 1. Verify/calibrate process flow meters to ensure accuracy within 5% error tolerance. 2. Provide a report specifying allowable tolerances for each flow meter type. 3. Provide verification/calibration certificates for each flow meter. Equipment requirements: Successful bidder must submit valid SANAS calibration certificates for: - Clamp-on ultrasonic flow meter(s) for closed conduits. - Level gauge/meter for open channels. Site briefing PPE: Reflector vests, safety boots (steel tip), overalls, goggles, and hard hats are mandatory. List of flow meters includes units across Northern Works (e.g., Unit 3 Balancing Tank, Module feeds, final effluents, and others).

Submit a completed Bill of Quantities (BOQ) with firm prices only. Non-firm prices will not be considered. Pricing must include all applicable taxes and delivery costs. Each item in the BOQ must specify: scope of work, quantity, unit of measure, unit price, and total price. Example items: Unit 3 Balancing Tank Inlet (N3 BT IN), Unit 3 Module feeds (MOD 1-3), Unit 4/5 flow meters, and dewatering meters. Grand total must be in RSA currency with all taxes included.

Pricing must be firm and inclusive of all applicable taxes (VAT, PAYE, income tax, UIF, skills development levies). Non-firm prices or those subject to exchange rate variations will not be considered. Offer must be valid for 60 days from the closing date. Submit a completed Bill of Quantities (BOQ) with unit prices and total prices for each item. All delivery costs must be included in the bid price. Payment terms and bonds/guarantees are not explicitly specified in the document.

Compulsory documents: 1. Valid Tax Clearance Certificate or SARS PIN. 2. Certified/original/valid B-BBEE certificate or compliant sworn affidavit (non-compliant affidavits score zero). 3. Municipal rates and taxes clearance (not older than 90 days in arrears). 4. Signed Declaration of Interest form (MBD 4). 5. Declaration of Bidder’s past SCM practices (MBD 8). 6. Certificate of Independent Proposal Determination (MBD 9). 7. Proof of CSD registration/MAAA Supplier Number. 8. Preference points claim form (MBD 6.1). 9. Company registration documents with ID copies of directors/shareholders. Additional requirements: Quotations must be on company letterhead. No bids from persons in the service of the state or blacklisted entities. Joint Venture Agreements (if applicable) must be signed by all parties.

All bidders attending the site briefing must wear proper basic PPE: reflector vests, safety boots (steel tip), overalls, goggles, and hard hats. Entry to the plant will be denied without full PPE compliance.

Offer must be valid for 60 days from the closing date. All delivery costs must be included in the bid price. Contract is subject to the Preferential Procurement Policy Framework Act of 2000 and PPPFA Regulations 2022, General Conditions of Contract (GCC), and any special conditions of contract. All applicable taxes (VAT, PAYE, income tax, UIF, skills development levies) must be included in the quotation.

Evaluation uses the 80/20 point system: 80 points for price, 20 points for specific goals (PPPFA 2022). Mandatory criteria: 1. Attendance of compulsory briefing session. 2. Proof of one completed flow meter calibration project (completion certificate or reference letter on client’s letterhead). 3. Certified copy of Metrologist Mert Cert certificate in liquid flow metrology. Non-compliant or false documentation will result in disqualification or zero points.