Supply and installation of a temperature response test rig

Closing

• 09 October 2026 at 11:00
• No late submissions are accepted.

Briefing session

• None scheduled for this RFQ.

Quotation validity

• 120 days from the closing date.
• SABS may extend validity by a further 60 days by written notice without the bidder's consent; quotations may not be amended during either period.

No briefing session or site visit is scheduled for this RFQ.

Enquiries

• Contact: Lerato Monyepao
• Role: Procurement Specialist
• Email: [email protected]
• Telephone: 012 428 6055

Enquiry restrictions

• All enquiries must go to the nominated contact only.
• Contacting any other SABS personnel about this RFQ may disqualify the bidder.
• Canvassing by bidders or suppliers results in disqualification.

Delivery and installation address

SABS Groenkloof

1 Dr Lategan Road

Groenkloof

Pretoria, 0001

Submission method

• Channel: email only
• Submission email: [email protected]
• Format: PDF files; a compressed zipped folder may be used where necessary
• Not accepted: submissions sent via a link or WeTransfer
• Closing: 09 October 2026 at 11:00; late submissions are rejected
• The bidder carries the risk of ensuring the quotation reaches SABS before the closing time

Returnable documents (all must accompany the quotation)

• National Treasury Central Supplier Database (CSD) registration report
• Valid B-BBEE certificate or sworn affidavit, required to claim specific goal points
• SBD 4 (Bidder's Disclosure): discloses state employment and relationships involving the bidder's directors, shareholders or controlling persons
• SBD 6.1 (Preference Points Claim): claims points for the stated specific goals under the Preferential Procurement Regulations 2022
• Signed Non-Disclosure Agreement covering information exchanged during the RFQ process
• Any further documents listed in the evaluation criteria

Disqualification risks

• Quotation received after the closing time
• Submission by link or WeTransfer
• Contacting SABS personnel other than the nominated enquiry contact, or canvassing
• Omission or non-completion of any returnable document

Documents to be submitted with the quotation

• National Treasury Central Supplier Database (CSD) registration report
• Valid B-BBEE certificate or sworn affidavit, required to claim specific goal points
• SBD 4 (Bidder's Disclosure): discloses state employment and relationships involving the bidder's directors, shareholders or controlling persons
• SBD 6.1 (Preference Points Claim): claims specific goal points under the Preferential Procurement Regulations 2022
• Signed Non-Disclosure Agreement
• Any further documents required by the evaluation criteria

Submission

• Closing: 09 October 2026 at 11:00; no late submissions accepted
• Method: email to [email protected]
• Format: PDF files, compressed zipped folder if necessary
• Not accepted: submissions via a link or WeTransfer
• The bidder is responsible for ensuring the quotation reaches SABS on time

Preference point system

• System: 80/20 under the Preferential Procurement Regulations 2022
• Price: 80 points
• Specific goals: 20 points
• Total: 100 points

Stages

• Only bidders whose quotations meet the stated requirements proceed to evaluation on price and specific goals.
• Bidders who do not submit the proof required to claim specific goals are treated as claiming no specific goal points.
• SABS may require a bidder to substantiate any preference claim before or after adjudication.

Specific goal points

• Race-based: 100% black ownership 10 points; 75–99% 8 points; 60–74.99% 6 points; 51–59.99% 4 points; 1–50.99% 2 points; 0% 0 points
• Gender-based: 100% black women ownership 6 points; 51–99% 4 points; 1–50.99% 2 points; 0% 0 points
• Disability-based: 100% owned by persons living with disabilities 4 points; 51–99% 2 points; 0–50.99% 0 points
• Bidders who claim nothing receive 0 points for specific goals.

Scope

• Design, manufacture, supply, installation, commissioning and validation of a temperature response test rig for a laboratory testing environment.
• A complete operational system is required, not individual components only.
• Delivery, installation and commissioning take place at SABS Groenkloof, 1 Dr Lategan Road.

Core capabilities

• Safety-valve temperature response testing.
• Controlled heating and cooling of pressurised water.
• Water temperature rise and fall rate controllable between 1.5 °C/min and 3.0 °C/min.
• Heater maintained at its marked working pressure.
• Recording of the temperature at which the safety valve starts discharging and at which flow stops.
• Mixer temperature-control sensitivity testing at a controlled inlet pressure of 300 ± 10 kPa and an initial mixed-water temperature of 30 °C.

Safety valve and vessel

• Water heater/test vessel rated for the maximum pressure and temperature anticipated during testing.
• Safety valve installable horizontally, per the manufacturer's prescribed arrangement, fully submerged, and tested with the heater filled and pressurised to its marked working pressure.
• Dedicated test connection accepting the relevant valve sizes, permitting horizontal installation and full submersion, with interchangeable adapters, leak-free pressurisation and safe collection and drainage of discharge water.

Temperature measurement

• Sensor positioned to read water temperature within 10 mm of the outer edge of the thermostatic probe and midway along its length, on an adjustable mounting that does not interfere with the valve or probe.
• Minimum sensor specification: Pt100 RTD Class A or better; range at least 0 °C to 100 °C; accuracy ±0.2 °C or better; resolution 0.1 °C or better; response time suited to the required ramp; traceable calibration certificate.

Recording and data acquisition

• Electronic system continuously recording water temperature, time, rate of change, test start time, heating phase, safety-valve opening temperature, cooling phase and safety-valve closing temperature.
• Preferably a real-time temperature-versus-time graph with rate-of-change calculation.
• Means of identifying the exact temperatures at which water first emerges from and stops flowing from the safety valve.
• Central data acquisition and control system.

Heating and cooling

• Electrically powered heating with capacity to achieve 1.5–3.0 °C/min at the measurement location; preferably immersion heaters, solid-state or variable heating control, PID control and PLC-based control.
• Heater capacity to be calculated and specified from water volume, desired ramp, heat losses, maximum test temperature and heater efficiency.
• Operator-selectable ramp (example 2.0 °C/min), with the controller regulating heater power automatically.
• Cooling at 1.5–3.0 °C/min via controlled cold-water circulation, heat exchanger, controlled drain/refill, cooling coil or a combination, without compromising test pressure or causing unsafe pressure fluctuations; preferably PLC-controlled.

Pressure, filling and detection

• Pressure control comprising water inlet, isolation valve, pressure regulator, pressure gauge or transducer, pressure relief device, controlled drain and pressure-rated piping and fittings.
• Pressure measurement accuracy at least ±1% of reading, digital transducer preferred, with continuous monitoring and an alarm or interlock above the safe operating limit.
• Filling design minimising air entrapment, with high-point air bleed/vent, controlled filling, drain arrangement and visual or electronic filling indication; the bidder must describe its method for filling without entrained air.
• Safety-valve opening detection by flow sensor, conductivity/water detection, drip detection, optical detection or pressure/flow combination, giving an electronic PLC signal and recording opening temperature and time.
• Safety-valve closing detection during cooling, recording closing temperature and time and calculating the opening-to-closing temperature differential.

Mixer sensitivity test

• Separate test circuit connecting the mixer to the water supply at 300 ± 10 kPa, continuously measured with a calibrated pressure transducer and alarmed outside the permitted range.
• Mixed-water temperature stabilised at 30 °C for 30 seconds before testing, measured downstream of the mixer with a Pt100 RTD Class A or better, ±0.2 °C accuracy and 0.1 °C resolution.
• Controlled measurement of mixer control angular movement of 5 ± 0.1° in the hot direction, using a digital angular encoder, rotary potentiometer, optical encoder or mechanical indexed fixture.
• Test sequence: initial setting at 30 °C, then three movements of 5 ± 0.1° each with temperature stabilisation and recording after each.

Commissioning, training and documentation

• Commissioning must verify temperature and pressure measurement, heating rate, cooling rate, pressure control, safety-valve detection, data logging, mixer pressure control, mixer temperature measurement, angular movement measurement, emergency stop and safety interlocks.
• The bidder must demonstrate that the system achieves the specified 1.5–3.0 °C/min heating and cooling rates.
• Training for 3 SABS staff members.
• Documentation to be supplied: user manuals, software manuals and SANAS-accredited calibration certificates.

Calibration

• All measurement equipment must be calibratable: temperature sensors, pressure transducers, pressure gauges, flow measurement devices where applicable, angular measurement device and data acquisition channels where applicable.
• Calibration certificates must be traceable to appropriate national or international measurement standards.
• Certificates must be provided on commissioning.

Documentation to be supplied

• User manuals
• Software manuals
• SANAS-accredited calibration certificates

The quotation must include, but is not limited to:

• Total cost all-inclusive of VAT
• Cost breakdown
• Delivery, installation and commissioning
• Training
• Transportation cost, if applicable
• Disbursement, if applicable
• Fixed pricing; where foreign currencies are involved, provision must be made for forward cover

Pricing format

• Quotation must state the total cost all-inclusive of VAT.
• A cost breakdown is required.
• Pricing must cover delivery, installation and commissioning, and training.
• Transportation and disbursement costs must be shown where applicable.
• Prices must be fixed; where foreign currencies are involved, bidders must make provision for forward cover.

Payment

• No upfront or advance payment will be made.
• Payment follows delivery of the service or goods as agreed between SABS and the successful bidder.

Bid validity

• Quotation valid for 120 days from the closing date, extendable by 60 days on written notice.

Costs

• SABS is not liable for any bidder costs incurred in preparing or submitting the quotation, including costs incurred before both parties sign an agreement.

Registration and tax

• Bidders must be registered on the National Treasury Central Supplier Database and submit the CSD registration report.
• A SARS Tax Compliance Status PIN must be provided, or a CSD number where no TCS PIN is available.
• Consortia, joint ventures and subcontractors must each submit a separate TCS certificate, PIN or CSD number.

B-bbee

• A valid B-BBEE certificate or sworn affidavit must be submitted to claim specific goal points.
• Failure to submit the proof means no specific goal points are awarded.

Standard forms

• SBD 4 (Bidder's Disclosure): declares whether the bidder or its directors, shareholders or controlling persons are employed by the state or connected to anyone at the procuring institution.
• SBD 6.1 (Preference Points Claim): claims specific goal points under the Preferential Procurement Regulations 2022.
• SBD 1 (Invitation to Bid): bidder and contact details, including the foreign supplier questionnaire where applicable.
• Non-Disclosure Agreement: binds the bidder to confidentiality of information exchanged during the RFQ process.
• SBD 7 (Contract Form): to be completed and signed by the successful bidder.

Exclusions

• Bids from persons in the service of the state, companies with such directors, or close corporations with such members will not be considered.
• Persons listed on the Register for Tender Defaulters or the List of Restricted Suppliers are automatically disqualified.
• Foreign suppliers must complete the questionnaire in SBD 1 and enclose proof where required.

Preference points are claimed against specific goals; bidders who claim nothing receive 0 points.

Race-based ownership

• 100% black ownership: 10 points
• 75–99%: 8 points
• 60–74.99%: 6 points
• 51–59.99%: 4 points
• 1–50.99%: 2 points
• 0%: 0 points

Gender-based ownership

• 100% black women ownership: 6 points
• 51–99%: 4 points
• 1–50.99%: 2 points
• 0%: 0 points

Disability-based ownership

• 100% owned by persons living with disabilities: 4 points
• 51–99%: 2 points
• 0–50.99%: 0 points

Evidence

• A valid B-BBEE certificate or sworn affidavit must be submitted with the quotation to claim these points.

Safety features required in the rig

• Pressure relief device on the test vessel.
• Continuous pressure monitoring with an alarm or interlock when pressure exceeds the defined safe operating limit.
• Alarm when mixer inlet pressure falls outside 300 ± 10 kPa.
• Safe collection and drainage of discharge water from the safety valve.
• Emergency stop and safety interlocks, verified during commissioning.
• Cooling method must not compromise test pressure or cause unsafe pressure fluctuations.

Payment

• No upfront or advance payment is made; payment follows delivery of the agreed service or goods.

Bidder costs

• SABS is not responsible for any bidder costs in preparing or submitting the quotation, including costs incurred before both parties sign an agreement.

Bidder terms

• SABS is not bound by any legal or contractual terms included in the bidder's quotation.

Validity

• Quotations remain valid for 120 days from the closing date.
• SABS may extend validity by 60 days by written notice without the bidder's consent; quotations may not be amended during either period.

Only bidders whose quotations meet the stated requirements are evaluated further, on the 80/20 preference point system under the Preferential Procurement Regulations 2022, covering price and specific goals.

Points allocation

• Price: 80 points
• Specific goals: 20 points
• Total: 100 points