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Scoring focuses on compliance with technical specifications: valves must meet nuclear safety class SC-3, ASTM material standards (e.g., A182 F304/304L, A105), ASME flange standards (e.g., B16.5, B16.11), and certifications (ATEX for oxygen service). Suppliers are evaluated on experience in nuclear or high-safety industrial valve supply and adherence to South African nuclear regulations.

Scope: Supply actuated valves for the NW PlasGas Demonstration Project. Key deliverables:

• Valve types: Globe valves, Ball valves.
• Sizes: 15 to 250 (as per tag specifications).
• Materials: Stainless steel (ASTM A182 F304/304L, F316/316L), Carbon steel (ASTM A105, A216 WCB).
• Flange specs: ASME B16.5 or B16.11, ratings 150# to 1500#.
• Actuators: Pneumatic (FO/FC), Solenoid.
• Safety class: SC-3 (Nuclear or Chemical).
• Certifications: ATEX Rated for oxygen service valves.
• Operating conditions: Pressure up to 24820 kPa(g), temperatures from -5°C to 400°C.
• Special notes: Some valves are shared between NW PlasGas and CWOPG facilities. Flexible graphite packing/seals with anti-extrusion rings required for certain valves.

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Closing date: 29 May 2026 at 17:00. Site briefing: Not compulsory but can be arranged if additional information is required.

Contact person: Catherine Matima. Email: [email protected]. Submission address: [email protected].

Submit quotation via email to [email protected] on or before 29 May 2026 at 17:00. Quotation validity: 90 days from closing date. Incomplete quotations may be disqualified. All queries must be submitted in writing to the provided contact details—do not approach other Necsa employees. No goods/services to be delivered without an official Necsa Purchase Order.

Two-phase evaluation: Phase 1 (Functionality/Technical) requires a minimum score of 80/100 to progress. Criteria: ISO 9001:2015 accreditation (40 points), product lead-time (4 weeks = 30 points, 6 weeks = 20 points, 8 weeks = 2 points), suitability of product (30 points). Phase 2 (80/20 system): 80 points for price, 20 points for B-BBEE status level (Level 1 = 20, Level 2 = 18, ..., Non-compliant = 0). Failure to submit B-BBEE proof results in 0 preference points.

Supply system actuated valves for the NW Plasma Gas Project (Low-Level Waste Plasma Gasification Demonstration Facility). Valves must meet specifications in the attached Valve List [ENS-NWPVR-LST-24002, Rev.5] and P&ID diagrams [ENS-NWPVR-PID-24002 to 24015]. Note: XV1410D valve size to be determined during HVAC system design. Suppliers must provide valve make/model and data sheets. Necsa complies with ISO 9001, ISO 14001, OHSAS 18001, and RD 0034 standards.

Pricing must be fixed, firm, and include all applicable taxes, freight, insurance until acceptance, duties, and disbursements. Payment terms: According to Necsa’s General Conditions of Purchase. Quotation validity: 90 days from closing date. Orders above R30,000 evaluated under PPPFA 80/20 system; orders above R1M subjected to tender process.

Mandatory documents: Tax Clearance Certificate (SARS-issued Tax PIN), Declaration of Interest (SBD 4), B-BBEE Certificate or EME Affidavit, Letter of Good Standing (COID) if applicable, valve/pump data sheets and curves. Subject to PPPFA 2022 (80/20 system), Necsa’s General Conditions of Purchase, and anti-corruption clauses. Failure to submit B-BBEE proof results in 0 preference points.