Manufacture, supply and installation of fuel infrastructure at or tambo international airport (RFQ 74415)

The tender covers the manufacture, supply, and installation of various fuel infrastructure at O.R. Tambo International Airport. The supporting data sheets specify the replacement of an existing centrifugal surface pump with an explosion-proof (Ex-rated) equivalent, and include technical specifications for a non-contact ultrasonic level transmitter and a quarter-turn electric actuator.

Bidders must confirm the hazardous area zone (e.g. Zone 1/2 for gas, Zone 21/22 for dust), gas/dust group (e.g. IIA/IIB/IIC or IIIA/IIIB/IIIC), and temperature class (T1–T6) with site area classification drawings and a qualified electrical/process safety engineer before procurement. The applicable certification scheme (ATEX, IECEx, or national equivalent) must be confirmed, and corresponding certificates and conformity documentation must be supplied with the replacement unit. Bidders must verify wetted material compatibility with the pumped fluid. The actuator's size, mounting flange, area classification, power supply, and performance data are project-specific and must be taken from the Schedule of Equipment.

The replacement pump must be explosion-proof (Ex-rated) and match or exceed the existing pump's flow, head, suction lift, and connection dimensions. The existing pump is self-priming, integrated ejector type, single-phase 220V, 1.1kW, IPX4, max flow 70 l/min, max head 50m, max suction lift 9m, water temperature +1°C to +35°C, port size 1" (25mm), dimensions 450x185x220mm. The motor protection type must be specified (e.g., flameproof/Ex d, increased safety/Ex e, or non-sparking/Ex nA). Hazardous area zone, gas/dust group, temperature class, ingress protection upgrade (typically IP55 or IP66), certification scheme (ATEX, IECEx, or national equivalent), cable entry/gland requirements, and wetted materials compatibility must be confirmed.

Non-contact ultrasonic level transmitter technical data: measuring principle Time of Flight, resolution 1mm, accuracy ±2mm or 0.2%, max range fluids 5m, bulk materials 2m, blocking distance 0.25m, beam angle 11°, reaction time min 2s (2-wire) or 0.5s (4-wire). Process connection G1½" or G2" thread, wetted part PVDF, process temperature -40°C to +80°C, process pressure 0.7 to 3 bar abs. Output 4-20mA with HART, also FOUNDATION Fieldbus and PROFIBUS PA variants. Power supply AC 90-253VAC or DC 10.5-32VDC, max power 4VA/1W. Ambient temperature -40°C to +80°C, housing aluminum T12 coated, IP68/NEMA 6P, housing rotatable 350°, cable entry torque max 20Nm. Calibration by entering empty distance and span, interference echo suppression, reference operating conditions. Mounting notes: avoid centering, offset 1/6 diameter, weather protection, beam path clearance, use guide pipe min 100mm in narrow vessels. Documentation set includes TI, BA, KA, and detailed functions reference.

Quarter-turn electric actuator technical specification (3rd generation platform): IP66/IP68 (7m/72h), ambient temperature -30°C to 70°C (watertight/FM/CSA) or -20°C to 70°C (ATEX/IECEx), duty class A/B, 60 cycles nominal, up to 600 starts/hour, S2-15min rated. Mounting any orientation, manual override with padlockable clutch lever and handwheel, oil-filled gearcase, mechanical travel stops ±5%, polyester powder coating. Motor: solid-state switching, 25-100% speed control, phase rotation correction and lost-phase protection, torque switches 40-100% rated. Local controls: Open/Close selector, Local/Stop/Remote selector, illuminated LCD position indicator, 3 LEDs, absolute encoder position sensor, battery support for display/logging. Commissioning via Infrared/Bluetooth Setting Tool, non-intrusive, password protected. Data logging with date/time stamps, battery-backed. Electrical terminals M5/M4, cable entries 4x M25 (or NPT/PG16). Control supply 20-60VDC/40-120VAC or 24VDC, 6 control inputs, 4 volt-free indication contacts configurable for various signals.

No specific compliance requirements are stated in the document. Bidders must confirm hazardous area classification data with site area classification drawings and a qualified electrical/process safety engineer before procurement. The replacement unit must be supplied with the relevant Ex certification and conformity documentation.

The replacement pump must be explosion-proof (Ex-rated) and match or exceed the existing pump's flow, head, suction lift, and connection dimensions. The motor protection type must be specified (e.g., flameproof/Ex d, increased safety/Ex e, or non-sparking/Ex nA). Hazardous area zone, gas/dust group, temperature class, ingress protection upgrade (typically IP55 or IP66), certification scheme (ATEX, IECEx, or national equivalent), cable entry/gland requirements, and wetted materials compatibility must be confirmed. Confirm all hazardous area classification data with the site's area classification drawings and a qualified electrical/process safety engineer before procurement.

Employer: Airports Company South Africa SOC Limited, Reg. No 1993/004149/30, VAT no 4930138393, O. R. Tambo International Airport, Private Bag X1, 3rd Floor ACSA North Wing Offices, OR Tambo International Airport, 1627, Tel No. 010 207 2397. Project Manager and Supervisor: Nhlanhla Khanyi, same address, Tel No. 010 207 2397, email [email protected].

Returnable documents: completed Form of Offer and Acceptance (C1.1) with the offered total of Prices, and Contract Data Part 2 (Contractor's data). The tenderer must provide a CIDB registration number. The tenderer must submit a first programme within 4 weeks of the Contract Date. The Contractor must provide a performance bond of 20% of the total Prices in the form set out in Annexure B. The Contractor must provide proof of insurance as required by Annexure D. The Contractor must comply with the Compensation for Occupational Injuries and Diseases Act No. 130 of 1993 for employee insurance. The Contractor must not cede, delegate or assign rights without written consent. The Contractor must comply with the ethics clause (Z21) and confidentiality clause (Z22).

Disqualification risks: failure to fulfil any obligations to provide securities, bonds, guarantees, proof of insurance and other documentation constitutes repudiation of the agreement.

The tenderer must submit a completed Form of Offer and Acceptance (C1.1) with the offered total of Prices, and complete the Contract Data Part 2 (Contractor's data). The tenderer must provide a CIDB registration number. The Contractor must provide a performance bond of 20% of the total Prices in the form set out in Annexure B. The Contractor must provide proof of insurance as required by Annexure D. The Contractor must comply with the Compensation for Occupational Injuries and Diseases Act No. 130 of 1993 for employee insurance. The Contractor must not cede, delegate or assign rights without written consent. The Contractor must comply with the ethics clause (Z21) and confidentiality clause (Z22).

The works are the manufacture, supply, and installation of various fuel infrastructure at O. R. Tambo International Airport, specifically at Fuel depot and airside (fire and rescue facility). The contract includes Part C3: Service information (Employer's Works Information and Contractor's Works Information) and Part C4: Site Information. The Contractor must implement and maintain a quality management system as stated in the Works Information, and submit a quality plan for acceptance within 4 weeks of the Contract Date. The Project Manager may instruct correction of non-compliance with the quality plan. The Contractor must submit a first programme within 4 weeks of Contract Date, and revised programmes at intervals no longer than 4 weeks. Key dates include conducting Hazard and Operability study and Safety Integrity Level Assessment for the Fuel Hydrant Emergency Shutdown System, standardising the Fuel Hydrant System Emergency Shutdown System, upgrading the Fuel Hydrant ESD programmable electronic safety system, and submitting Handover/Record Information Report.

Pricing data includes Pricing Assumptions and Activity Schedule – Option A (Part C2). The offered total of Prices exclusive of VAT is to be calculated per the activity schedule Grand Total, which prevails in case of conflict. The offered total of Prices exclusive of VAT is R, Value Added Tax @ 15% R, and the offered total inclusive of VAT is R. Payment assessed between 3rd and 15th of each month, payment within 4 weeks of valid tax invoice. Interest at prime rate. Performance bond 20% of total Prices. Retention 5% of total Prices. Delay damages per section (R2,000, R10,000, R10,000, R5,000/day) capped at 20% of total Prices. Limitation of liability clauses. Insurance requirements per Annexure D.

The tenderer must provide a CIDB registration number. The Contractor must comply with the Compensation for Occupational Injuries and Diseases Act No. 130 of 1993 for employee insurance. The Contractor must provide proof of insurance as required by Annexure D. The Contractor must not cede, delegate or assign rights without written consent. The Contractor must comply with the ethics clause (Z21) and confidentiality clause (Z22).

Risk register includes working in confined spaces with toxic/flammable vapours, working in explosive environments, fall protection, handling heavy objects, and working in a live aerodrome near aircraft. Occupational Health and Safety Agreement is part of the contract (Part C1.3).

Environmental Terms and Conditions are part of the contract (Part C1.4). Risk register includes environmental impact due to spillage of flammable, toxic, or polluting substances.

The contract is governed by NEC3 Engineering and Construction Contract, April 2013, with Main Option A (Priced contract with activity schedule), dispute resolution Option W1, and secondary options X2, X5, X7, X13, X16, X18, and additional conditions Z1-Z24. Key terms include: law of contract is South African law; language English; period for reply 3 days; completion date 12 months after contract start; defects date 52 weeks after completion; defects correction period 4 weeks (1 week for operational/safety/environmental risks); payment assessed between 3rd and 15th of each month, payment within 4 weeks of valid tax invoice; interest at prime rate; delay damages per section (R2,000, R10,000, R10,000, R5,000/day) capped at 20% of total Prices; performance bond 20% of Prices; retention 5%; limitation of liability clauses; termination provisions; confidentiality; IP rights; ethics; cession and assignment restrictions; joint and several liability for JV; force majeure definition; insurance requirements; adjudicator panel and arbitration procedures.

Access dates: Work Area – Airside upon approval of project safety file and work permits; On-site office upon completion of site establishment. Starting date upon signing contract by Employer. Employer not willing to take over works before Completion Date. Additional conditions include Z-clauses amending core clauses (e.g., Z4 fitness for purpose, Z5 subcontractor payment proof, Z6 setting out, Z7 acceleration, Z8 defects date extension, Z12 compensation event notification, Z13 critical path requirement, Z14 business rescue, Z15 changes in law, Z16 delay damages termination, Z17 performance bond, Z18 limitation of liability, Z19 cession, Z20 joint and several liability, Z21 ethics, Z22 confidentiality, Z23 liens, Z24 IP).

The Contractor submits a quality plan for acceptance within 4 weeks of the Contract Date.