Check Valve Tenders
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Methodology
Last updated on 04/27/2026.
Amatola Water
Check Weirs/ Valves
Rfq: 143- 25/26 cleaning of water treatment works recycling lagoons 40m x 40m x 5m deep for debe wtw and masincedane wtw
Cleaning of water treatment works recycling lagoons 40m x 40m x 5m deep for Debe WTW Masincedane WTW
Tender Close Date:
Prince Albert Municipality
Supply and delivery of appurtenant borehole headworks fittings for borehole gz000401/402 in klaarstroom
supply and delivery of appurtenant borehole headworks fittings for borehole **** in klaarstroom 25mm class 6 hdpe type iv borehole dipper tube 32mm class 6 hdpe type iv borehole level transducer tube 50 dn plasson compression male adapters 50mm class 10 hdpe type iv riser column 50 dn plasson compression female adapters 4core submersible electric cable size 4mm 10mm 4core armoured pvc swa pvc cable 7mm diameter poly propylene safety rope 25 dn tekflo full bore brass ball valve ff, or similarly approved 25 dn tekflo cast iron ystrainer ff, or similarly approved 25 dn dual purposeorifice ventomata. r. i air release valve, or similarly approved 50 dn tekflo wafer type check valve or similarly approved 50 dn pn 16 ductile iron avk rsv gate valve, nonrising stem or similarly approved 50 dn sans **** klamflex flange adaptor to suit pvc or hdpe pipe, or similarly approved 14 dn wika 100mm face, **** kpa, bottom entry pressure gauge or similarly approved en **** pn 16 flanged mechanical flow meter with pulse
Tender Close Date:
Obpva - Onderstepoort Biological Products Limited
Valve Replacement
Major Service Raw water pre- treatment service. Replace solenoid valve diaphragm and coil Replace pressure relief valve Check and fix if there are any leaks Service softener system ( including salt and softening resin) Service transfer pump Service booster pump Service pH control unit Calibrate pressure gauges & - Conductivity meters ( Calibration solution should be SANAS certified) Replace pressure regulator Service RO 1st stage feed pump Service RO 2nd stage feed pump Permit valve seal replacement Membran
Tender Close Date:
National Research Foundation
Appointment of a 1me cidb- graded or higher me cidb- graded service provider for the replacement of a leaking generator head gasket and any required associated spare parts and minor ancillary services to restore full operability and reliability of the 600kva doosan diesel generator at the national research foundation premises in pretoria, brummeria
Appointment of a service provider for the replacement of a leaking generator head gasket and any required associated spare parts and minor ancillary services to restore full operability and reliability of the 600kVA Doosan diesel generator. 1. remove and replace the head gasket on the generator cylinder heads 2. inspect cylinder head, valve seatsvalves, and mating surfaces machine or reseal as needed per manufacturer guidelines 3. replace associated spares and consumables e. g. , gaskets, orings, sealants, studsbolts if required, coolantengine oil as specified 4. retorque and leakcheck per oem standards 5. perform basic functional test postrepair verify no leaks and proper coolantoil levels 6. supply and install head gasket sets, bolts, seals and all related parts 7. remove, clean and reinstall heads. 8. supply standby generator of similar capacity. 9. supply and service oil 60lt 10. supply and service antifreeze 20lt 11. supply and install oil filters x2 12. provide startupshutdown checks and recommended main
Tender Close Date:
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