Latest ventilation filter Tenders | Government ventilation filter Tenders

Central Government/Public Sector

CTN :42407952

01 Nov, 2025 NA

Barh - Bihar

Tender For providing of custom bid for services - 200143869job contract for removal, washing, and laying of filter gravel and sand at the pre-treatment plant gravity filter beds at ntpc barh

CTN :42424079

01 Nov, 2025 NA

Ambala - Haryana

Tender For supply of process and cleaning chemicals, lab testing chemicals with apparatus and glass ware new digital polarimeter , repairing of old digital polarimeter , repairing of double edge polameter (mechanical) , knife of rappipol extractor , whatman filter paper no.1 46*57 cm (rim of 100 sheet) , ph meter with electrode (toshniwal/elico make) , ph electrode with protected cover (toshniwal/elico make) , buffer capsules ph 4.00 , buffer capsules ph 7.00 , buffer capsules ph 9.20 , ethanol absolute (99.9%) , edta (ethylene diamine tetra acetic acid) crystal , filter paper kalpi 18.5 cm (01 pkt*100 circles) , lead acetate basic anhydrous (merck make) , standered ph paper range 2-10 (merk/qualizens) , universal indicator solution ph 4-11 , lactic acid (commercial grade) , sodium lodide (nal) , sodium hydroxide (naoh) , potassium hydraoxide (koh) , potassium ferrocyanide (k4fecn6) , ammonia (nh3) liquor/solution , hydro chloric acid (hci) 35%-38% & sp.gravity 1.18 , sulphuric acid (h2so4) 98% pure & sp.gravity 1.84 , phenolphthalein indicator , thymolphthalein indicator , starch , potassium dichromate (k2cr2o7) , potassium permanganate (kmno4) , eriochrome black t indicator , methylene blue indicator solution , b.t.b. powder (bromothymol blue powder) indicator , bleaching powder comm. 25 kg bags , burette (borosil) capacity 50 ml , beaker (borosil) 1000 ml , volumetric pipette 50 ml (borosil) , volumetric pipette 25 ml (borosil) , graduated pipette 10 ml borosil) , graduated pipette 05 ml borosil) , volumetric pipette 02 ml (borosil) , beaume hydrometer range 0-10 make brass , brix hydrometer 0-10 (20oc) germany make , mercuric sulphate 250 gram , ferrion indicator 100 ml , ammonium ferrous sulphate (500 gram) , sulphuric acid (98%) q29995 , methyl orange 125 ml , methyl red 125 ml , phenel 125 ml , buffer solution , a) ph7 , b) ph 4 , c) ph9 , ph indicator , small testing tubes 50 ml , long vapour tubes 2 feet , bicker (glass) 200 ml , bicker (glass) 400 ml , bicker (glass) 1000 ml , coated mug 500 ml , coated mug 1000 ml , thermometer long 0-250 degree c , tds meter , digital weighing scale 5kg , digital ph meter range 4-12 , cod bottle 200 ml , thermometer long 0-100 degree c , testing tube holder size 6" , testing tube 18x50 27 mi , dropping bottle plastic 1000 ml , cylinder long glass 1000 ml , mercury thermometer 0-50 degree , burette 50 ml

State Government

CTN :42417993

06 Nov, 2025 12.00 Lacs

Ferrargunj - Andaman And Nicobar Islands

Tender For replacement of complete filter media of rapid sand gravity filter at water treatment plant, kamsarat dam under rcd, apwd, wimberly gunj.

State Government

CTN :42298853

29 Oct, 2025 NA

Jharsuguda - Odisha

Tender For providing of custom bid for services - upgradation and restoration of filter media in gravity sand filter 3, 4 and 5 at wtp of itps

CTN :42337047

06 Nov, 2025 NA

Pune - Maharashtra

Tender For supply of 000020 t meter wet and dry bulb 15 c to 55 c , 10535900 h1 8010 000353 oil linseed refined , 10546044 h1 8030 000002 compound dip sealing , 10535869 h1 8945 000002 oil mustered , 10306566 h6 6640 000058 bottel aspirators borosiliate 10 ltrs , 10305309 h6 7310 000085 hot plate electric retort stand 140mm di , 10306647 h6 6640 000078 burretes class a 25ml with double ob , 10302757 h6 6630 000066 tester antifreeze solution for gly warte , 10306938 h7 6810 000299 sodium fluride 500 gm bottles , 10303184 h7 6810 000366 0 tolidine reagent for determination , 10307258 h7 6810 000115 potassium dichromate ar 500 gm bottle , 10306741 h7 6810 000204 acetone ar 500 ml and 2 5 ltr bottles , 10307327 h7 6810 000114 potassium matabisulphite ar 500 g bot , 10307189 h7 6810 000152 acid boric ar crystallized 500 gm bo , 10307113 h7 6810 000089 ammonium oxalate ar 500 gm bottles , 10307261 h7 6810 000116 potassium permanganate ar 500 gm bott , 10307168 h7 6810 000113 phenol ar 500 gm bottle , 10307292 h7 6810 000124 silver nitrate ar 100 g bottles , 10307274 h7 6810 000119 potassium chromate ar 500 gm bottles , 10307330 h7 6810 000156 ortho phosphoric acid ar 500 ml bottle , 10305668 h7 6810 000576 napthalene technical , 10307138 h7 6810 000100 acid hydrochloric a r 500ml and 2 5 ltr , 10307086 h7 6640 000037 paper starch iodide book of 20 leaves , 10307028 h7 6810 000136 sodium hydroxide ar sticks or pellet , 10305415 h7 6810 000086 ammonium carbonate ar 500 gm bottles , 10305265 h7 6810 000168 calcium chloride hydrate ar 500 gm btl , 10307106 h7 6810 000127 sodium bicarbonate a r 500 gm bottles , 10303239 h7 6810 000272 calciun sulphate anhydrous 500 gm bottle , 10546052 h7 6810 000259 aluminium ammonium sulphate ar , 10303514 h6 6640 000558 rod stirring laboratory soda glass 8 , 10302632 h6 6640 000108 flask borosilicate boiling flat botto , 10302565 h6 6630 000353 test set soil portable , 10305339 h6 hf 11001 hydrometer humatgraph iinstrument dess , 10302439 h6 6630 000041 hydrometer grtd scale beaume and spaz 70to , 10306571 h6 6640 000059 bottle aspirator 5 litre borosilicate , 10303510 h6 6640 000556 rod stirring lab soda glass 4mm dia , 10546226 h6 6640 000175 apparatus sampling pol theit metel , 10304474 h6 6640 000438 forceps laboratory 75mm straight fine p 10302214 h6 4610-000141 water desert desalting kit, 10302569 h6 6630-000354 portable soil testing eqpt appts shrinka, 10300454 h7 6810-000530 b- napthylamine pure (100 gm bottles), 10307079 h7 6810-000187 mercury chloride (mercuric) ar(100 gm bo, 10304215 h6 6640-000481 paper filter no42 125mm diameter box, 10307098 h7 6810-000088 ammonium molybdate ar, 10546051 h1 8945-000001 oil coconut, 10302515 h6 6630-000054 hydrometer grtd scale specific gravity, 10302935 h6 6640-000149 tubing soda glass 13mm od 2mm wall thic, 10303560 h6 6640-000564 still water 4.5 ltr mk-2, 10536246 h6 6685-000481 thermometer self indicating liquid in gl, 10302327 h6 6630-000008 tester battery electrolytic solution p, 10302527 h6 6630-000199 test kit oil condition portable complete, 10305324 h6 7510-000074 pencil marking glass assorted //bid details 2 / 55

CTN :42378941

21 Oct, 2025 12.74 Lacs

Ananthapur - Andhra Pradesh

Tender For repairs, maintenance and replacement of filter media at 4.83 mld old rapid gravity filtration plant, supply and delivery of chlorination plant 0 to 5kg/hr at head water works in guntakal municipality

CTN :42060168

27 Oct, 2025 79.89 Lacs

Nawanshahr - Punjab

Tender For corrigendum : supply of model of mpfi system , model of crdi system , tool kit , pressure gauge , compound gauge , thermometer with case , leak dedector to detect cfc hfcs , thermostatic switch lp-hp cut out overload protector filters strainers and filter driers , refrigeration cycle testing rig , gas charging kit , split ac test rig , actual cut section model of screw compressor , actual cut section model of rotary compressor , vapour absorption refrigeration test rig , vaccum pump , ice plant trainer , sling psychrometer , single plate clutch , multi plate clutch unit , centrifugal cluth unit , cut section of synchromesh gear box , model of rack and pinion steering gear , model of power steering gear or re-circulating type worm and wheel or other type of steering gear , model of ac pump , model of su pump , automobile electric system , brake master cylinder , sliding mesh gear box , cut section model of 4 cylinder 4 stroke petrol engine , diesel fuel supply system , abs system trainer , air compressor for tyre inflation , inverter , electric vehicle kit , software , acetylene cylinder , acetylene pipe 15 meter , acetylene regulator with spanner , anvil 50 kg with stand , earthing cable 50mm 06 meter , electrode holder simple , electrode holder heavy duty , gloves , hand hacksaw frame , oxygen regulator with spanner , oxygen cylinder , oxygen pipe 15 meter , single snip , welding screen , welding torch high pressure , welding torch low pressure , carpentry bench vice , firmer chisel , gimlet , plough plane 200 mm , spoke shave plane , tenon saw 12 inch -300mm , analog meggar , desert cooler , digital earth tester , earth leakage circuit breaker single phase , earth leakage circuit breaker single phase three phase four pole , electric oven , heat convector , motor coil winding machine , residual current circuit breaker single phase , residual current circuit breaker single phase three phase four pole , leg vice 4 inch , swage block 4 inch , bench grinder 0.5 hp motor , bench vice heavy duty , flat file rough 10inch , flat file smooth 10inch , grinder , pipe vice , round die handle , tap wrench 5by16 inch to 1 inch , edge folding machine , foot shear machine , funnel stake , grinder machine , hand shear 12inch bent snip aviation snips , hand stake , hearth anvil , round stake , taper stake , gaggers , hand rammer , ladle , lifter- tong 2 in 1 , molding boxes flasks , oil fired tilting type furnace , pneumatic rammer , riddle , sand mix muller , drilling machine , grinding machine heavy duty , planner , power hacksaw , shaper , welding cable 50mm copper apparatus for verification of law of polygon of forces:apparatus consisting of a wooden board of approx 20 mm thickness of size 24x30 inches, fixed on a wooden slotted frame. four adjustable frictionless aluminium pulleys to be provided in the slots of the frame and the frame to be provided with suitable arrangements for fixing it to a wall., simply supported beam apparatus:apparatus consists of two compression dial type spring balance and a wooden beam of length 1m, minimum cross section 2cmx5cm with all weights and accessories, inclined plane and friction slide apparatus:apparatus consisting of wooden plane of minimum size 60x15 cms having adjustment for setting the angle precisely. apparatusshould be supplied completely with frictionless pulley, linear and circular scale, pan, a wheeled trolley and a set of minimum six slide draws (having bottom of metalic and non metalic materials)., winch crab single purchase apparatus:apparatus consisting of a heavy duty c.i. wall brackets. the grooved wheel of 25 cm dia and a set of gearing arrangements (machine cut //bid details 2 / 130 gears) to be provided for measurement of efficiency of winch crab complete set with accessories., apparatus for determining centre of gravity of regular & irregular lamina:apparatus consisting of a rod mounted on a base with a screw at the topand 8 laminas of clear acrylic material- circular,triangular

CTN :42251152

18 Oct, 2025 17.32 Lacs

Narsapur - Andhra Pradesh

Tender For replacement of existing filter media and repairs to filter bed no. 4, 5, 6 for 30 mld rapid gravity filtration plant at head water works in narsapur municipality