National Metrology Institute Of South Africa
General service of an Oil- less piston vacuum pump ( Model JP- 90V- 9L) connected to a GeneVac evaporator.
Tender Close Date:
Evaporator Tenders
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City Power - Johannesburg
CITY POWER JOHANNESBURG ( PTY) LTD Bidders are hereby invited for the following bid: For The Supply, Installation, Repair and Maintenance of Air Conditioning
Request for the supply, installation, repair and maintenance of air conditioning 1. minor services 2. major services 3. compressor 4. fan motor 5. condenser coils 6. capacitator 7. relay 8. thermostat 9. evaporator coils 10. blower motor 11. drain pump 12. airfilter 13. control board 14. sensors 15. refrigerant leaks 16. expansion valve 17. capillary tubes 18. refrigerant charging 19. wiring connections 20. circuit breakers 21. fuses 22. transformers 23. electrical contacts 24. humidistat 25. grills and diffusers 26. ductwork and insulation 27. airhandling unit 28. wiring cabling 29. copper pipes fittings
Tender Close Date:
Obpva - Onderstepoort Biological Products Limited
4. Training Scope and Curriculum The training programme must cover, at a minimum, the following topics: 4. 1 Refrigeration Fundamentals Principles of refrigeration and heat transfer Refrigeration cycle ( compression, condensation, expansion, evaporation) Basic thermodynamics concepts Pressure, temperature, and enthalpy relationships 4. 2 Refrigeration System Components Compressors ( types, operation, lubrication) Condensers and evaporators Expansion devices ( TXV, capillary tubes) Refrigerants ( common type
Tender Close Date:
Eskom
Refurbishment of Mechanical Evaporators at Kusile Power Station ( once off )
Tender Close Date:
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