Latest duplex check valve Tenders | Government duplex check valve Tenders

Central Government/Public Sector

CTN :45304117

15 Jun, 2026 10.00 Lacs

Faizabad - Uttar Pradesh

Tender For repair /maintenance/replacement of butterfly valves, sluice valve, non-return valve, and supply of water treatment chemicals with allied works at ayodhya cantt under age(i) ayodhya

CTN :44948937

30 May, 2026 NA

South Andaman - Andaman And Nicobar Islands

Tender For corrigendum : supply of 701324 o ring crankcase cover , er6150b-705003 hp pump driving belt set , er6150b-mem02030 membrane cushion dts , er6151b-415v-p3-63-ea-svb main switch 63amp , er6151b-702103 hp flexi hose connecting hp disch press gauge disc , er6151b-702133 brine rw hp flex hose , er6151b-zaa00054 spare kit d 25 pvc , er6150b 208009 1 4 fxpu4 elbow , er6151b- 100125101001 prefilter pump , er6151b-100200104066 retainer seal , er6151b-100103001004 permeate transfer pump , er6151b-100210204001 pulsation damper , er6151b-100200131058 rod plunger , er6151b-100200131068 retainer seal , er6151b- 100200131069 wick long tab , er6151b-100200131071 inlet manifold , er6151b-100700402003 flow meter 150-1500lph , er6151b 100802114101 pu 4 hose , er6151b 100200131076 adapterinlet valve , er6151b- 100200131085 manifold discharge , er6151b- 100200131901 ho pump seat kit , er6151b- 100200131902 hop pump valve kit , er6151b 100200131903 plunger retainer kit , er6151b- 100300211131 motor 415v 6p 75 kw sidetb , er6151b- 100400401501 cartridge filter head , er6151b- 100700246005 abs ball valve 2 way 32 mm , er6151b- 100700405004 flow switch , er6151b 100802114102 pu 9 hose transperent , er6151b-100803116002 victaulic couplings 1 14 , er6151b-100805414101 straight connector 14 m x pu 4 , er6151b- 100900305012 smcv valve unit for 3 4 valve , er6151b-101100408004 isolating repeater , er6151b- 101100815101 thermostat , er6151b-101101103101 miniature relay 24vdc , er6151b-101101103102 miniature relay 230 vac , er6151b-101102832001 running hour meter , er6151b-101200102003 pressure gauge 0-10bar , er6151b-101200291004 pressure transmitter 0 -100bar , er6150b- 100200125060 oil seal crankcase , er6150b-101131 pressure maintaining vlave , er6150b-204933 ss connectior kit , er6150b-100400401502 o ring cartridge filter housing , er6150b 100601711001 lip seal dt module groove ring , er6150b-100802114101 flexible pipe- pu4 , er6150b-100802114201 flexible pipe-pu 8 9 , er6150b-100902101003 solenoid valve , er6150b-100922102001 nonreturnvalve 3 8 f , er6150b-102603 contactor 12 5 kw , er6150b-103216 motor of filter pump type 1 1 kw , er6150b-104285 pressure gauge 0-10 , er6150b-105000200147 permeate transfer pump , er6150b-201503 ball valve s s , er6150b -202301 prefilter pump shaft seal , er6150b-202632 spacing pipe , er6150b 202633 spacing pipe , er6150b-202634 spacing pipe , er6150b-203256 gf pvc-u ball valve 3 waypvc-u 32 mm spigot type , er6150b-203352a non return valve , er6150b-205018 pulley 5 groove spa 125 , er6150b-205113 taper bush 2517 bore 35 mm , er6150b 205117 taper bush pump , er6150b-205118 taper bush 1610 bore 42 mm , er6150b-205303 bearing hp motor , er6150b-206119 oil seal plunger rod , er6150b-206621 washer oil seal , er6150b-206622 oil seal crank case , er6150b- 206623 seal retainer - 2 pc , er6150b-604041 lip seal dt module , er6150b-706001 coupler for victaulic coupling 1 , er6151b 00249 level switch , er6151b- 03807 o-ring for cartridge filter , er6151b 100100202035 neck ring p 45 , er6151b-100100202055 neck ring retainer , er6151b -100100203031 //bid details 2 / 120 mechanical seal p 105 , er6151b-100100203032 sleeve gasket p 37 , er6151b-100100203046 bearing ring p 47a , er6151b-100100203051 coupling complete for pump , er6151b-100100203055 neck ring p 45 , er6151b 100100203056 neck ring retainer , er6151b- 100100203065 split pin , er6151b-100103001046 kit repair , er6151b-100103001047 kit gaskets , er6151b- 100103001049 kit plug , er6151b-100103001061 shaft seal , er6151b-100120101039 splash ring p 507 , er6151b-100120101040 ring circlips p 931 , er6151b- 100125101035 sleeve shaft p 14 , er6151b- 100125101036 i b bearing p 16 , er6151b-100125101037 gland formechseal p 17b , er6151b-100125101039 o b bearing p 18a , er6151b-100125101040 circlip internal p 18b , er6151b-100125t01047 impeller gasket p 28 , er6151b-100125101049 o-ring bearing housing p 33b , er6151b 100125101050 deflector p 40 , er6151b-100125101052 lip sealib p 47

CTN :45142257

30 May, 2026 15.00 Lacs

Rewa - Madhya Pradesh

Tender For supply of jalpradya and pipe line material nagar prishad hanumana -isi gi pipes (surya/swastik/tata) – 2 star rating: 50mm, 63mm, 75mm, 90mm, 100mm | isi gi sockets – 2 star rating: 50mm, 63mm, 75mm, 90mm, 100mm | isi gi unions – 2 star rating: 50mm, 63mm, 75mm, 90mm, 100mm | isi gi tees – 2 star rating: 50mm, 63mm, 75mm, 90mm, 100mm | isi gi elbows – 2 star rating: 50mm, 63mm, 75mm, 90mm, 100mm | isi gi bends – 2 star rating: 50mm, 63mm, 75mm, 90mm, 100mm | isi gi nipples – 2 star rating: 50mm, 63mm, 75mm, 90mm, 100mm | isi gi reducer sockets – 2 star rating: 50mm, 63mm, 75mm, 90mm, 100mm | isi gi reducer elbows – 2 star rating: 50mm, 63mm, 75mm, 90mm, 100mm | isi gi reducer tees – 2 star rating: 50mm, 63mm 75mm, 90mm, 100mm flanges (2-hole pattern); 50mm, 63mm, 75mm, 90mm, 100mm pvc pipes (10 kg/cm² pressure rating); 3", 4", 6" c.i. bends; 3", 4", 6" c.i. reducer sockets; 3", 4", 6" c.i. reducer tees; 3", 4", 6" c.i. reducer bends; 3", 4", 6" c.i. air valves; 2", 3", 4", 6" c.i. non-return valves; gland packing cord, white lead (safeda), molten lead, jointing compound; heavy-duty plastic taps (1/2"); heavy-duty steel taps (1/2"); rubber rings (3", 4", 6", 8"); nuts & bolts (tvs company, all sizes); pvc tees (2", 2.5", 3", 4", 6"); pvc elbows (2", 2.5", 3", 4", 6"); pvc sockets (2", 2.5", 3", 4", 6"); pvc bends (2", 2.5", 3", 4", 6"); pvc reducer sockets (2", 2.5", 3", 4", 6"); pvc reducer tees (2", 2.5", 3", 4", 6"); pvc reducer bends (2"). 2.5, 3, 4, 6; clamps: 1-1/4, 1-1/2, 2, 2.5, 3, 4, 6; spindle rod (repair): 2, 2.5, 3, 4, 6; spindle rod with nut: 2, 2.5, 3, 4, 6, 8"; pipe wrench (taparia): 10, 12, 14, 18, 24; chain wrench (taparia): no. 36; spanner set (taparia): 4, 6, 8, 10, 12; t-wrench set (taparia); rubber packing; raw rubber; gate valve (isi brass): 1/2, 3/4, 1, 1.5, 2, 2.5, 3, 4; gate valve (c.i.): 1/2, 3/4, 1, 1.5, 2, 2.5, 3, 4; c.i. joint: 3, 4, 6, 8; c.i. sluice valve: 3, 4, 6, 8; c.i. tailpiece: 3, 4, 6, 8; c.i. bend (90 degrees): 3, 4, 6, 8; submersible pump (isi marked): 1 hp kirloskar/crompton (8-stage, 12-stage, 16-stage, 18-stage, 20-stage); 1.5 hp kirloskar/crompton (8-stage, 12-stage, 16-stage). stages: 18, 20 | 2 hp kirloskar/crompton | stages: 8, 12, 16, 18, 20 | 3 hp kirloskar/crompton (t6/t4) | stages: 12, 16, 18, 20 | 5 hp kirloskar/crompton (t6/t4) | stages: 8, 12, 16, 18, 20 | 6 hp kirloskar/crompton (t6/t4) | stages: 8, 12, 16, 18, 20 | 7.5 hp kirloskar/crompton (t6/t4) | stages: 8, 12, 16, 18, 20 | 10 hp kirloskar/crompton | stages: 8, 12, 16, 18, 20 | 15 hp kirloskar/crompton | stages: 8, 12, 16, 18, 20 | ltl panel board: 1 hp, 2 hp, 3 hp, 5 hp, 7.5 hp, 10 hp, 15 hp, 20 hp bch starter ltl (1 hp, 2 hp, 3 hp, 5 hp, 7.5 hp, 10 hp, 15 hp, 20 hp); starter oil; sluice valve (2.5 inches, 3 inches, 4 inches, 6 inches, 8 inches, 10 inches); rubber packing; voltage meter (bch company: 1 hp, 2 hp, 3 hp, 5 hp, 7.5 hp, 10 hp, 15 hp, 20 hp); ammeter (bch company: 1 hp, 2 hp, 3 hp, 5 hp, 7.5 hp, 10 hp, 15 hp, 20 hp); c.i. d-joint (3", 4", 6", 8", 10"); heavy-duty chain pulley (5 ton); main switch ltl (3 hp, 5 hp, 7.5 hp, 10 hp, 15 hp, 20 hp); pvc. pipe wrap (tape) 1", 3/4"; elbows; couplers (sockets) for motor connection 1", 3/4"; vice (thin type) including nuts and bolts; rope 6mm, 8mm; saddle clamps for pipe connections: 315mm, 280mm, 250mm, 225mm, 200mm, 180mm, 160mm, 140mm, 125mm, 110mm; mdpe pipe 1/2"; ferrule 1/2"; nuts & bolts (size 13); tvs clamps 3", 4", 6", 8"; grinder machine; t-wrench 24x27; cutter machine; hammer drill machine; hammer; chisel; axe; hdpe pipe: 110mm, 125mm, 140mm, 160mm, 180mm, 200mm, 225mm, 250mm, 280mm, 315mm; hdpe tee: 110mm, 125mm, 140mm, 160mm, 180mm, 200mm, 225mm, 250mm, 280mm, 315mm; hdpe coupler (joint): 110mm, 125mm, 140mm, 160mm, 180mm, 200mm, 225mm, 250mm, 280mm, 315mm. reducers: 280/250 mm, 250/225 mm, 225/200 mm, 200/180 mm, 180/160 mm, 160/140 mm, 140/125 mm, 125/110 mm; bands: 110 mm, 125 mm, 140 mm, 160 mm, 180 mm, 200 mm, 225 mm, 250 mm, 280 mm, 315 mm;

CTN :45283377

10 Jun, 2026 NA

Kanchrapara - West Bengal

Tender For supply of 1/2 inch duplex check valve & spares set at 5 kg/sq.cm. kpa drg. no. er/kpa/el/va.3he.1963b, items 1 to 19 or wsf pt. no.ic 70024/2. [ warranty period: 30 months after the date of delivery ][quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]

CTN :45283616

22 Jun, 2026 NA

Gorakhpur - Uttar Pradesh

Tender For supply of duplex check valve with 1.5 kg per cm square pressure setting for air spring as per ftrtipl drg. no. a4 039 0265 rev.5 or kbi drg. no. i.3.1902 alt. 5 or escorts part no.-3eb6632 or similar. confirming to rdso spec. no. ck407(rev.4) . [ warranty period: 30 months after the date of delivery ] ]

Corporations And Associations And Others

CTN :45247693

25 May, 2026 84.3 Thousand

Panipat - Haryana

Tender For a/mtc. of ephs (w/s) in sector-12, u/e panipat. repair of submersible pumping machinery including motor pump electrical control panel starter cable with kit kats and all accessories, sluice valve (sv), non return valve (nrv), etc. of tubewells and all others works contingent thereto.

Central Government/Public Sector

CTN :45249690

09 Jun, 2026 48.00 Lacs

Udhampur - Jammu And Kashmir

Tender For repair/maint of pipe lines and valves at 5171 asc, 738 wrks, ncvd, anant ram vihar, and maint of distribution header, sluice valve, non return valve, air release valve and allied works at various locations under ge (utilities) udhampur

State Government

CTN :45228136

03 Jun, 2026 NA

Udhamsign Nagar - Uttarakhand

Tender For service of vacuum filter and supply of its spares and cluster nozzle - vacuum filter spares & service, s.s. screen having 625 holes/sq. inches. (salem make) (minimum weight 1.2 kg. each screen), brass zigzag strips (2 long), rubber hose pipe (2 " x 24"), mud scrapper 5"x10 mm x 6 ply (dunlop make) for 8 x 16 vaccum filter, araldite 1.8 kg. pack, m-seal 1 kg. packing (pidilite make), a) brass end strip, b) s.s. end strip, copper revit round head 5mm x 12mm, copper revit rounf head 5mm x 15mm, copper revit rounf head 5mm x 18mm, soft lead 8 mm wire, brass tube plate for 8x16 vaccum filter, ss electrode (no 12) 2.5 mm thick, roller for mud conveyor belt, ss clamp for binding rubber hose pipe 2 1/4"x24", s s bolt 1/4"x3/4", s.s. channel 16 long, monarch brass nozzles, m s shocket for monarch brass nozzles, junction box (s.s. sheet) from 3mm thick plate heavy duty, s.s. nipple for decking plate (as per sample), s.s. decking plate for 8x16 (as per our site vacuum filter), s. s. binding strip 3/4" x 2-1/4, s. s. pipe 1.5mm thick, size= 1/2 x 46 , s. s. pipe 1.5mm thick, size= 1/2" x 65 , s. s. pipe 1.5mm thick, size= 1/2" x 16.5 , s. s. pipe 1.5mm thick, size= 1/2 x 28 , s. s. pipe 1.5mm thick, size= 3/4 x 7, s. s. pipe 1.5mm thick, size= 3/4 x 6.5, s. s. pipe 1.5mm thick, size= 3/4 x 10, round head s.s. screw " x 3/4", s.s. electrodes (no. 10) thikness 3.15 mm, vacuum filter vacuum disc plate (brass/gun matel) complete set (left & right), s.s. gate valve (screw type) 2 size, s.s. electrodes (no. 8) 4mm size, servicing of vacuum filter, after dismantling of s.s. screens of vacuum filter no. 1, 2 & 3, cleaning of decking plates, conducting hydraulic testing of five way fitting connections and giving satisfactory leak proof trials of same and thereafter refitting of all the dismantled s.s. screens complete in all respect, fitting of new damaged five way fittings (complete with welding etc.) of vacuum filter no. 1, 2 & 3 and thereafter conducting satisfactory leak proof trials. (5 way fitting), replacement of damaged decking plate nipples of vacuum filter no. 1, 2 & 3 and welding with five ways fitting, thereafter conducting satisfactory leak proof trials., replacement of damaged end strips of vacuum filter with new strips complete in all respect and thereafter conducting satisfactory leak proof trials. half filter, replacement of damaged end strips of vacuum filter no. 3 with new strips complete in all respect and thereafter conducting satisfactory leak proof trials. full filter, replacement of damaged brass/s.s. channels (16 ft. lengthl) of vacuum filter with new s.s/ brass channels complete in all respect, replacement of damaged decking plate of vacuum filter with new decking plate complete in all respect., dismantling & fitting both end s.s. tube of filter with vacuum distribution plate in filter and satisfactory trial., grinding of tunion valve plate with bear plate of vacuum filter and sucessful trial at minimum of 450mm of vacuum at junction with rotation of drum., vacuum genration up to 400mm at vacuum disc (including testing of pipe line to be made), keeping in the condition of genration of vacuum at vacuum pump was more then 625mm., repair of 8 point lubricator of vacuum filters (including cost of all un-serviceable parts), 3/8" bsp, non return valve, angle type, working pressure 21 kg./sq.cm. (as per sample), m.s. plug 3/8", m.s. plug 1/2", m.s. tee 3/8", m.s. elbow 3/8", supply of five way clusterwith nozzlefor mill mist colling system (complete in all respect) as per existingscope of workits including five way fitting branch line and nozzle.1- material- thermoplastic equivalent2- guarantee- one full crushing season, spray nozzle for mist cooling system

State Government

CTN :45228137

03 Jun, 2026 NA

Udhamsign Nagar - Uttarakhand

Tender For supply of centrifugal machine spares - spares for b&w make kt 1350 /34 centrifugal machine, oil seal 105 x 130x 15 matlic, oil seal 105 x 130 x 13 matlic, double rubber buffer for tilting chute, rubber o ring 160 x 3mm, h.t. bolt half thread unbrako 16mm x 120mm nut 16mm, nut 8 mm 8 mm, hexagonal s. s. bolt 10mm x 35 mm, hexagonal s. s. bolt 1" x 1", s. s. nut 10 mm x 10mm long, s.s. bolt half thread 16mm x 100mm, s.s.nut 16mm, s.s.allen key bolt 3/4" x 2", h.t. hex head bolt half thread with nut 20mmx90mm, h.t. hex head bolt full thread with nut 20mm x 100mm, s.s. bolt & nut 12 mm x 50 mm, s.s. clamp 2 mm thick 10mm hole, spares for nhec make nk/1100/30 centrifugal machine, s.s. needle valve 3/4" (ss-304), s.s. needle valve 1/2" (ss-304), brass spray nozzle, m.s. socket heavy duty 1/4", other spares, s.s. bolt 8mm x 25mm, s.s. bolt 10mm x 35mm, s.s. bolt 10mm x 40mm, s.s. bolt 12mm x 50mm, s.s. bolt 10mm x 60mm, s.s. nut 6 mm, s.s. nut 8 mm, s.s. nut 10mm, s.s. nut 12mm, dumping pad 75 x 150mm, dumping pad 75 x 60mm, stainless steel allen key bolt 12mm x 35mm, stainless steel allen key bolt 12mm x 30mm, stainless steel clit, rubber seal 87x103x10, rubber seal 31x40x3.5, oil seal for nk machine as per sample 75x85x10, 90x100x10, indicator elbow o ring x 3mm, indicator elbow o ring 3/4 x 3mm, clamp for rubber hose pipe size 2 x 24, rubber hose pipe with both side nut 1/2"x1000 mm 2100psi, rubber hose pipe with both side nut 1/2:x750 mm 2100psi, rubber hose pipe with both side nut 3/4":x1000 mm 2100psi, s.s. needle valve 3/4" (ss-304), rubber hose pipe x2 size with both side nut 2100psi, m.s. socket monarch nozzle, copper tube , brass connector with ferrule and nut , brass elbow with nut & ferrule , bearing housing with forged steel en-9 shaft and bearing (skf make nu-2215-2 nos., qj-215 01 no.) of nhec make nk-1100 centrifugal machine dynamically blanced, pulley od 235 mm no of grove 8 belt type c-148, moter pulley of nk-1100 centrifugal machine dynamically blanced od 326 mm no of grove 8 belt type c-148, spare pulley of bearing housing of nk-1100 centrifugal machine dynamically blanced od 235 mm no of grove 8 belt type c-148, pulley of bearing housing of kt-1350 centrifugal machine dynamically blanced od 240 mm no of grove 6 belt type spc-3550, motor pulley of kt-1350 centrifugal machine dynamically blanced od 290 mm no of grove 6 belt type spc-3550, spare shaft of nk-1100 centrifugal machine bearing housing, side cover of bearing housing of nk-1100 centrifugal machine, top cover, botttom cover, distance piece of nk-1100 centrifugal machine bearing housing, spare for 1750 kg charge centrifugal machine, oil seal 110x140x15, oil seal 170x200x15, o ring 110x3, o ring 140x4, o ring 240x5, circlip dia 140x4mm, spray nozzle flat jet 90 deg, set of tension ring for plough 60x68x12 (i set=3 ring pairs) with pressure ring, seal kit for 5" dia cylinder (02 nos.=1 set), rubber seal kit for pneumatic cylinder 6 x5 ", rubber seal kit for rotary distributor, rubber seal kit for 2" dia cylinder, rubber seal kit for 3" pneumatic cylinder, teflon seal for spindle locating arrangement, repair kit for butterfly valve 300 nb (2=1 set), repair kit for butterfly valve 200 nb (2=1 set), seal kit for pneumatic ball valve, solenoid valve 3013, solenoid valve 3012, coil for solenoid valve 3012/3013, proximity switch m 30x65, proximity switch m 50x65 for wobbling sensor, pilot operated non return valve with adapter 3/8", air filter ", flexible hose pipe 1"x1100 mm 2100psi, flexible hose pipe 1/2"x1200 mm 2100psi, flexible hose pipe 1/2"x800 mm 2100psi, flexible hose pipe 1/2"x900 mm with benjo connection 2100psi, flexible hose pipe 3/8"x1000 mm with benjo connection 2100psi, flexible hose pipe 3/8"x800 mm 2100psi, seal kit for bottom valve cylinder make heramb udyog model-hu-bdvcrd68, seal kit for main plough cylinder up/down make energy tech engineers sr. no-023110/1750, seal kit for in/out cylinder of plough discharge make-energy tech engi

Central Government And Public Sector

CTN :45227490

03 Jun, 2026 NA

Sonitpur - Assam

Tender For supply, fitment and commissioning of integrated test bench for air suspension control equipment levelling valve & duplex check valve as per specification attached. [ warranty period: 24 months after the date of delivery ] ]

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