Supply and delivery of upvc pipes, steel pipes, and air valves to overberg water treatment plants

• Closing date for bid submission: Tuesday, 14 July 2026 at 12h00.
• No briefing sessions, site visits, or clarification deadlines are mentioned in the document.

• Technical queries: Mr. Roland September, Tel: 028 001 0045, Email: [email protected].
• Supply Chain Management queries: Mr. Ayabulela Booi, Tel: 021 851 2155, Email: [email protected] (also cc: [email protected], [email protected]).
• All enquiries must be in writing only.
• These contacts are the only points of contact for this tender. Failure to observe this may lead to disqualification.

• Submit one original bid document in a sealed envelope clearly marked: “RFP OW 001 2026/2027– SUPPLY AND DELIVERY OF UPVC PIPES, STEEL PIPES AND AIR VALVES TO VARIOUS PLANTS OF OVERBERG WATER–”.
• Deliver to: Reception desk, Overberg Water Board’s Corporate Office, Trident Park 3, Ground Floor, 1 Niblick Way, Somerset West, Cape Town.
• Closing date and time: Tuesday, 14 July 2026 at 12h00. No late submissions accepted.
• You must register your submission in the Lodging Sheet at the Reception Desk, indicating deliverer name, number of copies, time, date, and signature.
• Telegraphic, telexed, faxed, or emailed submissions are not accepted.
• Complete and return all mandatory returnable schedules: SBD 1 (Invitation to Bid), SBD 3.2 (Pricing Schedule), SBD 4 (Declaration of Interest), SBD 6.1 (Preference Points Claim Form).
• Failure to provide any mandatory information will render your bid non-responsive and void.
• All enquiries and submissions must be directed only to the specified contact persons. Unauthorised contact with Overberg Water staff may lead to disqualification.
• Overberg Water reserves the right not to accept any submission.
• Tender prices must remain valid for 90 days from the closing date.
• The service provider must deliver all items within 90 days after issue of purchase order.

Request for Proposal (RFP) documents can be downloaded on e-Tender Portal and Overbergwater Board website (www.overbergwater.co.za). Documents will be available from

Must be registered on Central Supplier Database (CSD); must submit valid BBBEE Verification Certificate from SANAS-accredited agency (EME may submit sworn affidavit); must be tax compliant; must comply with Preferential Procurement Policy Framework Act (PPPFA) and Public Finance Management Act (PFMA); must meet local content thresholds or provide DTI exemption letter; must have valid COIDA certificate; must complete ALL mandatory returnable schedules; no advance payments available; foreign suppliers subject to additional requirements.

• Scope: Supply and delivery of uPVC pipes, steel pipes, and air valves to three Overberg Water treatment schemes: Rûensveld West (Caledon), Rûensveld East (Swellendam), and Duivenhoks (Heidelberg).
• All equipment must conform to the most recent SABS standards or applicable South African legislation and guidelines.
• Key specifications include:

• uPVC Pipes: Material must be unplasticised polyvinyl chloride (PVC-U). Pipes must conform to SANS 966 Part 1. Seal rings must conform to SANS 4633. Factories must be ISO 9001 certified. Length: 6m socketed.
• Air Valves: Sizes from 25mm to 80mm, pressure ratings PN16 to PN40.
• Brass Adjustable Water Pressure Reducing Regulator Valves (DN25 to DN40): Material brass, specific dimensions provided.
• Gate Valves (50-200mm): Flanged connection, ductile iron, PN25, anti-clockwise to open.
• Standpipes: HDG pipe with BSP male x male connections for 25mm, 50mm, and 80mm sizes.
• Seamless Carbon Steel Pipes: For MS50mm, MS100mm, MS200mm, MS300mm. Must be seamless, with specified diameters, wall thicknesses, and weights.

• Delivery locations with GPS coordinates provided for each plant.
• The service provider must comply with local content requirements for all supplies.

• All equipment must conform to the most recent SABS standards.
• uPVC pipes must conform to SANS 966 Part 1.
• Seal rings must conform to SANS 4633.
• Manufacturing factories must be ISO 9001 certified.

• Pricing must be submitted on SBD 3.2 form.
• Two main tables: Table A (uPVC Pipes and Steel Pipes) and Table B (Air Valves).
• Quantities and specifications are listed per plant location (Rûensveld West, Duivenhoks, Rûensveld East).
• All rates must be exclusive of VAT. Total price must include VAT at 15%.
• Bidders can quote on all items in Table A or Table B, or on all items in both tables.
• Price validity period: 120 days.

• Pricing must be submitted using the official Price Schedule (SBD 3.2).
• All rates must be exclusive of VAT. Bidders who are not VAT vendors may not charge VAT.
• The total bid price must include VAT at 15%.
• Price validity period: 120 days.
• No advance payments will be made by Overberg Water.
• Tender prices must remain valid for 90 days from the closing date.
• The contract requires delivery within 90 days after issue of purchase order.
• Bidders can quote on all items in Table A (uPVC and Steel Pipes) or Table B (Air Valves), or on all items in both tables.

• Bidders must submit a valid BBBEE Verification Certificate from a SANAS Accredited Verification Agency. Exempted Micro Enterprises (EME) may submit a sworn affidavit confirming turnover and black shareholding.
• Must include Tax Compliance Pin Number and/or CSD Registration printout with submission.
• Must be registered on the Central Supplier Database (CSD) and provide mandatory information (business registration, tax compliance status, banking details).
• Must submit a valid COIDA certificate.
• Must comply with local content requirements: Complete SBD 6.2 and Local Content Annexures C, D, E. If local content threshold not met, submit exemption letter from DTI.
• Declaration of Interest (SBD 4) must be fully completed, disclosing any interests in other companies.
• Bidders must comply with Regulation 13(c) of the Public Service Regulations, 2016 regarding state employees conducting business.
• Misrepresentation of information on capability or empowerment credentials leads to disqualification.
• Overberg Water reserves the right to conduct supplier due diligence, including site visits and requests for additional information.

• Submit a valid BBBEE Verification Certificate from a SANAS Accredited Verification Agency.
• EMEs may submit a sworn affidavit confirming turnover and black shareholding.
• BBBEE status contributes to preference points under the 80/20 evaluation system.

• A valid COIDA certificate is a mandatory requirement.
• Specific health and safety plans or OHS requirements are not detailed in the document.

• Contract period: Commences upon receipt of purchase order. Delivery must be completed within 90 days after purchase order issue.
• No advance payments will be made.
• Tender prices must remain valid for 90 days from closing date.
• Overberg Water shall not be liable for any claims, damages, accidents, etc., arising from the contract.
• The successful bidder will be required to sign a written contract form (SBD7).
• Overberg Water reserves the right not to accept any submission.
• Submission of a proposal does not represent a commitment by Overberg Water to proceed.
• No costs incurred in proposal preparation will be reimbursed.
• Bidders must comply with all applicable legislation and special conditions of contract.

• All submissions must be received by 12h00, 14 July 2026. No late submissions.
• Submissions become property of Overberg Water and will not be returned.
• Telegraphic, telexed, faxed, or emailed submissions not accepted.
• One original document in sealed, clearly marked envelope.
• Must register submission in Lodging Sheet at Reception.
• Enquiries and submissions directed only to specified contacts.
• Overberg Water reserves right not to accept any submission.
• Bidders must comply with Regulation 13(c) of Public Service Regulations, 2016.
• No costs reimbursed for proposal preparation.
• Overberg Water not liable for claims arising from contract.
• Tender prices valid for 90 days.
• Delivery within 90 days after purchase order.

• Preference given to respondents complying with Overberg Water Supply Chain Management Policy & Procedures.
• PPPFA principles and regulations apply.
• All equipment must conform to latest SABS standards or South African legislation.
• Must comply with local content requirements.
• Misrepresentation of information leads to disqualification.
• Overberg Water reserves the right to conduct supplier due diligence.

• 80/20 preference points system applies.
• Price: 80 points.
• Specific Goals: 20 points (allocated for Women Ownership, Disability Ownership, Youth Ownership, Location of enterprise in Western Cape, B-BBEE status level contribution).
• Evaluation phases: Administrative, Mandatory Requirements, Technical Specification, Price and Specific Goals.