Latest air lock relay Tenders | Government air lock relay Tenders

CTN :45427779

18 Jun, 2026 2.46 Lacs

Thanjavur - Tamil Nadu

Tender For supply of eee lab items - furniture, 5hp/3.75kw/415v1500rpm three phase(3 )synchronous motor with starting / loading arrangement and with work bench voltage:415v ac/220v dc for field excitation make: benn rating: 5hp/ 3.75kw speed:1500rpm no of poles : 4 synchronous starter dc excitation field current :0.8a digital voltmeter ac(0-500v) moving iron type:01qty digital ammeter ac(0-20a) moving iron type :01qty digital ammeter dc(0-2a) moving coil type :01qty digital power factor meter 600v/10a :01qty 3pole mcb/dc mcb with 20a fuse carrier and supply indicators (three pin plug socket should also be provided) :03qty digital rpm indicator with proximity sensor: 01qty banana connectors for motor/starter/supply outputs :01qty control panel (hylem sheet(5*1.5feet) with ms panel) :01 work bench spec: size: 4feet*3feet*2 1/2 feet height leg teak wood with top 3/4" inch plywood 18mm plywood withone mica sheet for finishing front side cupboard with door open and closed type back side wiring box with door open and closed type, performance of ultrasonic and moisture sensors(5v dc/15ma(40khz/digital output) arduino uno: microcontroller-atmega328p on-board digital sensor components two push button switches and dour leds buck converter and relay for 5v and potentiometer-one each 2x16 liquid crystal oscillator(lcd) and mini bread-one each onboard digital sensor modules: ultrasonic sensor module(3cm-100cm) and soil moisture sensor -one each all sensor modules should be mounted on legend size pcb, speed control of ac motor using variable frequency drive(vfd) (0.5hp/415ac/5a(3 )) variable frequency driver (vfd) unit: input voltage:single phase, 230v ac +-10%, 50hz output voltage : three phase output frequency range: 0 to 60hz suitable for 0.75kw motor output current 4.2a vf pattern of spwm control 2pole mcb for on/off control of mains ac voltmeter, ammeter and speed indicator should be provided external stop/start and frequency control should be provided output terminals should be provided and must be brought out in front panel experimental board should be housed in a cabinet with suitable cover three phase induction motor motor type:squirrel cage |rating:0.5hp voltage rating :415v ac speed :1440rpm+-5% insulation : class b/f

Central Government/Public Sector

CTN :45398742

09 Jun, 2026 NA

Raipur - Chhattisgarh

Tender For corrigendum : procurement of spares of ms koso make actuators installed at ntpc barhstage i. - sl kit-6345la da wh,sp6345da02-kit,koso, airset,frsm-6-zn-mb-05pp,koso, vol booster,vb3000,koso, actuator,k-g300-955-185-110,koso, diaph & o-ring,g300-br soft parts,koso, spring,nb30016cl-br,koso, volume booster,vb3000-br,koso, air lck relay,alr-pa-12.12.11-kit,koso, actdiaph&oring set,g300-softparts,koso, actuator assy,k-g300-932-200-90,koso, spring g300-20-40psi,nb30014cl,koso, seal kit,sp6320da04-kit,koso, seal kit-6330la w/hw,sp6330da01-kit,koso, seal kit,sp6345da01-kit,koso, seal kit,sp524sra01,koso, seal kit,sp5221ra01,koso, seal kit,sp6320da03, seal kit,sp524lra04-kit,koso, seal kit,sp5227ra01,koso, actuator assy,k-g300-178-200-90,koso, spring,nb30002cl,koso, air lock relay,alrpa12.12.11kitbr,koso

corporations/Associations/Others

CTN :45178837

08 Jun, 2026 NA

Anpara - Uttar Pradesh

Tender For corrigendum : supply of single acting air lock relay make: azbil , single acting positioner model http make: azbil , pilot relay assy of double acting positioner model vpp 03 make: azbil , double acting positioner model vpp-03 make: azbil

CTN :45417602

10 Jun, 2026 NA

Tiruvallur - Tamil Nadu

Tender For supply of lab items for eee and mechanical - eee and mechanical lab items, single phase transformer rating: 1 kva, 50 hz input: 230 v ac output: 115 v ac type: air-cooled, single-phase step-down transformer properly insulated input and output terminals brought out for safe operation, three phase transformer type: three phase transformer rating: 3 kva input voltage: 415 v ac, 3-phase output voltage: 230 v ac, 3-phase frequency: 50 hz winding material: copper wound insulation class: class b or higher duty: continuous duty suitable for laboratory use bench/floormounted suitable for laboratory operation. all winding terminals shall be brought out to insulated terminals and enclosed within a protective outer cover for safe laboratory operation , on / off control of lamp using solid state relay kit type : solid state relay (ssr) trainer kit control/input voltage : 12 v / 24 v dc or up to 30 v dc output load voltage : 230 v ac, single phase load control : on/off control of ac lamp load solid state relay based switching circuit opto-isolated input control built-in ac lamp load manual on/off switching arrangement led indication for input and output status , mcb elcb trainer kit 1 phase/3 phase, 2/3/4 pole, 3a-16a single pole mcb 2-5amps two pole elcb 30ma lamp load single phase 5amps panel enclosure and terminal outlets , single phase induction motor kit for load test by speed control of vfd (variable frequency drive) 2 hp single phase 230v complete load test experimental setup(with brake drum/pulley) induction motor -1 no work bench setup with digital meter -1 no motor stand with ant vibration bush 1 set loading arrangement with spring balance non-vibrating brake arrangement with stand and electrical work bench , 3 phase induction motor kit three phase squirrel cage induction motor with rope brake arrangement non-vibrating brake arrangement with stand and electrical work bench three phase squirrel cage induction motor 5 hp, 440 v, 1440 rpm, foot mounted type, frame size 132 mm, core length 110 mm, mechanical rope loading set up with 1" screw rods 2 nos, 6" adjustable wheels 6" 2 nos, back support frame, 9" aluminium drum, 0 50 kg spring balances 2 nos , dc shunt motor kit for load test dc shunt motor rope brake arrangement non-vibrating brake arrangement with stand and electrical work bench d.c. shunt motor 5hp, 220v, 1500 rpm, foot mounted type, frame size 132 mm, core length 110 mm, field current 0.5a, armature current 11a, 4 pole with inter poles, mechanical rope loading set up with 1" screw rods 2 nos, 6" adjusting wheels 6" 2 nos, back support frame 9" aluminum drum, 0 50 kg spring balances 2 nos. , bldc motor kit with electrical work bench *36v 400w bldc pro motor 1 no inbuilt volt and ammeter and rpm meter inbuilt power supply input 230v ac

CTN :45404153

09 Jun, 2026 NA

Palacode - Tamil Nadu

Tender For supply of equipment for electrical and electronics engineering department - supply of equipment forelectrical and electronics engineering departmen, loading rheostat 3 phase :specification :rating: 5.25 kw supply: 415 v ac, 3-phase, 50 hz total number of load steps: 6 main switch to be provided approximate dimensions: 18 18 22 inches (l b h) comprising special cement-insulated electrical load resistors mounted on powder-coated ms panel/enclosure individual on/off rotary switches for load selection mounted on rubber wheels/casters for portability suitable for laboratory load testing applications proper insulation, ventilation, and earthing arrangement to be provided , loading rheostat 1 phase :specification :type: single phase loading rheostat power rating: 5 kw supply: 230 v ac, single phase, 50 hz total number of load steps: 8 approximate dimensions: 18 18 22 inches (l b h) comprising electrical load resistors suitable for laboratory loading applications resistors shall be special cement-insulated type mounted on powder-coated ms panel/enclosure individual on/off rotary switches provided for load selection mounted on rubber wheels/casters for portability , single phase resistive load :specification :type: single phase loading rheostat power rating: 5 kw supply: 230 v ac, single phase, 50 hz total number of load steps: 8 approximate dimensions: 18 18 22 inches (l b h) comprising electrical load resistors suitable for laboratory loading applications resistors shall be special cement-insulated type mounted on powder-coated ms panel/enclosure individual on/off rotary switches provided for load selection mounted on rubber wheels/casters for portability , three phase capacitor bank :specification :3-phase capacitor bank rating: 2 kvar voltage: 440 v ac frequency: 50 hz heavy duty self-healing capacitor units powder coated ms enclosure compact panel mounted/floor mounted construction proper ventilation arrangement to be provided capacitor duty contactor/switch to be provided fuse/mcb protection to be provided discharge resistors to be provided for safety proper earthing arrangement provided , plc tranier kit:specification :plc make :allen-bradley / delta electronics / siemens orequivalentdigital inputs : 8 20 nos.digital outputs : 6 12 nos. (led / relay type indication)communication port : rs232 / usb / ethernet (if available)programming method : ladder logic programmingtoggle switches for digital input simulationled indicators for output status indicationanalog potentiometers for analog input experimentsproximity sensor interface providedrelay output interface providedinput supply : 230 v ac, 50 hzbuilt-in regulated 24 v dc power supplyladder diagram programming software to be providedcompatible programming software license to be providedsuitable for basic plc programming and automationexperiments

CTN :45386599

15 Jun, 2026 NA

Tuticorin - Tamil Nadu

Tender For purchase of lab equipments for eee dept - purchase of lab equipments for eee dept, single phase transformer.itemcode:b002 single phase transformer,rating: 1 kva, 50 hz, input: 230 v acoutput: 115 v ac,type: air-cooled, single-phase step-down transformer properly insulated input and output terminals brought out for safe operation)., acidity test kit itemcode:b005specifications:ethyl alcohol sodium carbonate solution universal indicator solution laboratory-grade test tubes droppers colour comparison chart for test result comparison chemicals supplied in labelled containers with safety instructions suitable for laboratory educational and testing applications, dc stepper motor drive kit with stepper motoritemcode:b010specifications:stepper motor : permanent magnet / hybrid type with suitable driver circuits. motor operating voltage : 12 24 v dc variable speed control forward and reverse direction control full step and half step operation manual / automatic pulse generation facility built-in regulated dc power supply led indication for phase sequence and status test points provided for waveform observation start / stop control switches to be provided overload and short circuit protection to be provided mounted on compact powder coated cabinet withprinted circuit diagram proper insulated terminals and interconnecting leads to be provided patch chords for interconnection, dc servo motor drive kit with servo motor itemcode:b011specifications:input supply : 230 v ac, 50 hz servo motor type : dc servo motor with feedback arrangement motor operating voltage : 12 24 v dc controller type : microcontroller based servo drive controller speed control : variable speed control to be provided position control : angular position control facility to be provided direction control : forward and reverse operation feedback device : encoder / potentiometer based feedback system built-in regulated dc power supply led indications for power and status test points to be provided for signal observation and analysis start / stop control switches provided overload and short circuit protection to be provided mounted on powder coated cabinet with printed circuit diagram proper insulated terminals and interconnecting leads to be provided, three phase resistive load itemcode:b013specifications:rating: 5.25 kw supply: 415 v ac, 3-phase, 50 hz total number of load steps: 6 main switch to be provided approximate dimensions: 18 18 22 inches (l b h) comprising special cement-insulated electrical load resistors mounted on powder-coated ms panel/enclosure individual on/off rotary switches for load selection mounted on rubber wheels/casters for portability suitable for laboratory load testing applications proper insulation, ventilation, and earthing arrangement to be provided, single phase single pulse / sinusoidal pwm inverter using mosfet/igbt kit itemcode:b028specifications:type : single phase pwm inverter trainer power device : mosfet / igbt based inverter circuit input supply : 12 24 v dc output voltage : 30 v rms ac output phase : single phase output frequency : 0 50 hz variable output power : 100 w single pulse pwm operation sinusoidal pwm (spwm) operation variable frequency control pwm generation and firing control circuit inbuilt gate drivercircuit provided test points provided for waveform observation and analysis built-in resistive load provision, on / off control of lamp using solid state relay kit itemcode:b029specifications:type : solid state relay (ssr) trainer kit control/input voltage : 12 v / 24 v dc or up to 30 v dc output load voltage : 230 v ac, single phase load control : on/off control of ac lamp load solid state relay based switching circuit opto-isolated input control built-in ac lamp load manual on/off switching arrangement led indication for input and output status, speed control of ac motor using vfd drive module with ac motor itemcode:b030specifications:type : variable frequency drive (vfd) module input supply : 415 v ac, three phase, 50 hz o

Central Government/Public Sector

CTN :45407237

12 Jun, 2026 NA

Vellore - Tamil Nadu

Tender For supply of solenoid valve as per sl.no.1 of annexure_1 , solenoid coils as per sl.no.2 of annexure_1 , air lock relay as per sl.no.3 of annexure_1 , air filter regulator as per sl.no.4 of annexure_1 , limit switch as per sl.no.5 of annexure_1 , air operated valve as per sl.no.6 of annexure_1 , volume booster as per sl.no.7 of annexure_1 , smart positioner as per sl.no.8 of annexure_1

CTN :45379134

10 Jun, 2026 NA

Arakandanallur - Tamil Nadu

Tender For for electrical and communication engineering department lab equipments are required as per new syllabus - upgradation of labarotariesece department, 8051 micro controller kit operating voltage: +5 v dc. flash memory: 4 kb (at89c51) / 8 kb (at89s52). ram: 128 bytes internal ram. 16 2 alphanumeric lcd display. push buttons / tactile switches. dip switches for digital input. inbuilt adc interface: ldr, potentiometer. inbuilt dac interface. inbuilt stepper motor driver with stepper motor. inbuilt dc motor driver with dc motor. 1 4 led array, 1 4 keypad, 1 relay. 1 buzzer, 16 2 lcd display, 1 pwm driver. 1 hardware interrupt key, inbuilt rtc. inbuilt eeprom and uart module. 4 7-segment display. supports both assembly and c language programming. pc interfaceable., single phase induction motor1 hp, 230 v ac, 1500 rpm with loading arrangement 1 no.voltmeter: (0 300) v ac, 96 96 mm with input terminals 1 no.ammeter: (0 10) a ac, 96 96 mm with input terminals 1 no.wattmeter: 2 kw, 96 96 mm with input terminals 1 no.power factor meter: 96 96 mm with input terminals 1 no.auto transformer: 0 300 v, 1 variac 1 no.mcb: 2-pole, 40 a / 230 v ac 1 no.digital rpm indicator with proximity sensor 1 no.aluminium brake drum: 230 mm diameter 1 no.spring balance: (0 25) kg 02 nos.circuit diagram printed on front panel with instruments and connecting terminals.motor and loading arrangement mounted on rigidchannel frame with anti-vibration mounting pads, m12 1.5 bolt & nut, 85 mm dia 4 nos.mild steel powder-coated electrical panel tablesetup., auto transformerinput: 230 240 v ac, 50 hz.output: variable (0 270) v ac.rating: 1 kva.insulation class: class f / class h.construction: copper winding with carbon brush arrangement.mounting: bench-top / panel type.protection: suitable fuse / overload protection., dth trainer kitpower supply: 200 v to 240 v ac, 50 hz. dish antenna: 1.5 ft aluminium steerable dish antenna.lnb (low noise block down converter): input frequency: ku-band. output frequency: 950 mhz to 1450 mhz. conversion gain: 65 db. noise temperature: 35 k (max).set-top box receiver in trainer form: if frequency: 70 mhz. video bandwidth: 50 hz to 5 mhz. video output level: 1 vpp at 75 load. video polarity: normal/inverted, switch selectable. audio subcarrier frequency:tunable from 5.0 mhz to 8.0 mhz. remote control provided. hdmi cable: 10 m. controls: channel selection. volume control. fault simulation: five built-in simulated faults for troubleshooting experiments. if signal disconnected. video output fault. audio mute fault. tuner misalignment. rf output interruption. pcb size: 15" 12" with multicolour section-wise block diagram.standard accessories: 1.5 ft dish antenna. lnb. trainer pcb. dish connecting wire. audio-video cable. user manual. acrylic cover. hardware materials for assembly of dish antenna. additional features: dth subscription connection with doordarshanfree channels., sim reader trainer kitpower supply: operates on 230 v ac 10%, 50 hz mains supply. built-in regulated smps power supply. operating dc supply: 5 v / 12 v with overload and short-circuit protection.sim card interface: supports gsm sim cards compatible with 2g / 3g / 4g / 5g networks. sim card read/write interface. supports sim card initialization, authentication, and communication functions. compatible with standard 6-pin / 8-pin sim card sockets.communication interface: usb 2.0 interface for pc communication. rs-232 serial communication interface. uart communication facility for embedded system interfacing.sim operating parameters: selectable sim clock frequencies: 3.579 mhz 7.159 mhz 14.318 mhz sim supply voltage selection facility. sim reset and activation control. supported protocols and standards: gsm etsi 07.07 and etsi 07.05 at command support. iso/iec 7816 smart card communication support. sim communication command monitoring facility. hardware features: on-board sim card socket. led indication for: power status sim detection reset activity data transmission/r

CTN :45365495

12 Jun, 2026 NA

Sivaganga - Tamil Nadu

Tender For purchase of equipments ( s.no 1 to s.no 5 ) for ece department - purchase of equipments, dso (digital storage oscilloscope) bandwidth: 50 100 mhz. sampling rate: 1 gs/s. channels: 2 (minimum). power supply: 100 240 v ac, 50 60 hz. automatic measurements: vpp, vavg, vrms, frequency, period, vmax, vmin, rise time, fall time, +width, width, +duty, duty, etc. horizontal scale: 5 ns/div 50 s/div or equivalent. vertical resolution: 8 bits (2 channelssimultaneously). vertical sensitivity: 1 mv/div 10 v/div (at input). waveform math: +, , , , invert, fft, etc. waveform storage: 16 waveforms or equivalent. communication interface: usb host and usb interface. display: 7-inch color display or equivalent. input impedance: 1 m 2% || 20 pf. accessories: 2 passive probes (1x/10x), 8051 micro controller kit operating voltage: +5 v dc. flash memory: 4 kb (at89c51) / 8 kb (at89s52). ram: 128 bytes internal ram. 16 2 alphanumeric lcd display. push buttons / tactile switches. dip switches for digital input. inbuilt adc interface: ldr, potentiometer. inbuilt dac interface. inbuilt stepper motor driver with stepper motor. inbuilt dc motor driver with dc motor. 1 4 led array, 1 4 keypad, 1 relay. 1 buzzer, 16 2 lcd display, 1 pwm driver. 1 hardware interrupt key, inbuilt rtc. inbuilt eeprom and uart module. 4 7-segment display. supports both assembly and c language programming. pc interfaceable., embedded trainer kit (using lpc 2148) cpu - lpc2148, core - 16/32 bit arm7tdmi-s speed - max 60 mhz, flash - 512kb, ram (on-chip) 40kb, 46 general purpose i/opins, usb2.0 one 10bit a/d converter with 14 analog inputs, one 10bit d/a converter, six pwm & watchdog two uarts (16c550), two i2c (400kb/s), two spi eight bit digital output, eight bit digital input,16x2 characters lcd and 4x4 matrixkeypad one potentiometer for giving analog input, relay& buzzer interface i2c devices: rtc, eeprom and seven segment display, on board stepper motordriver lm35 temperature sensor, one rs 232 lines are terminated at 9 pin d type connector and usb interface board has inbuilt power supply and mounted in sturdy cabinet accessories usb cable with utility software to download programs from pc to target board power cord, user manual, strain guage trainer kit ac mains power supply: 230 v 10%, 50 hz metal foil strain gauge mounted on beam/cantilever. strain measurement under applied load. wheatstone bridge arrangement. signal conditioning and amplification circuit. instrumentation amplifiers with 3 digit display for strain / output voltage. zero and gain adjustment controls. provision for applying calibrated loads. table-top trainer with labelled panel. test points for signal measurement. built-in dc power supplies and wooden closed cabinet. supplied with patch cords and user manual., sim reader trainer kitpower supply: operates on 230 v ac 10%, 50 hz mains supply. built-in regulated smps power supply. operating dc supply: 5 v / 12 v with overload and short-circuit protection. sim card interface: supports gsm sim cards compatible with 2g /3g / 4g / 5g networks. sim card read/write interface. supports sim card initialization, authentication,and communication functions. compatible with standard 6-pin / 8-pin sim cardsockets.communication interface: usb 2.0 interface for pc communication. rs-232 serial communication interface. uart communication facility for embeddedsystem interfacing. sim operating parameters: selectable sim clock frequencies: 3.579 mhz 7.159 mhz 14.318 mhz sim supply voltage selection facility. sim reset and activation control.supported protocols and standards: gsm etsi 07.07 and etsi 07.05 at commandsupport. iso/iec 7816 smart card communication support. sim communication command monitoring facility.hardware features: on-board sim card socket. led indication for: power status sim detection reset activity data transmission/reception built-in keypad for standalone operation. lcd display module (128 64) for menu andstatus display. on-board microcontroller-bas

CTN :45346462

11 Jun, 2026 NA

Madurai - Tamil Nadu

Tender For purchase of equipments for eee department - 3 phase capacitor bank :* 3-phase capacitor bank * rating: 2 kvar * voltage: 440 v ac * frequency: 50 hz * heavy duty self-healing capacitor units * powder coated ms enclosure * compact panel mounted/floor mounted construction * proper ventilation arrangement to be provided * capacitor duty contactor/switch to be provided * fuse/mcb protection to be provided * discharge resistors to be provided for safety * proper earthing arrangement provided, 3 phase auto transformer starter :* 3-phase variable autotransformer * input: 415 v * output: 0 470 v ac (continuous) * current: 15 a * copper wound, carbon brush type * heavy duty toroidal/core construction * mounted in powder coated ms/crca enclosure * front panel mounted voltage control knob with scale indication * proper insulated terminals provided * floor/bench mounted type suitable for laboratory use * input/output terminal arrangement provided * mcb/fuse protection provided * proper earthing terminal provided * ventilation arrangement for heat dissipation, linear variable differential transformer measurement trainer :* input supply : 230 v ac, 50 hz * type : linear variable differential transformer (lvdt) trainer kit * lvdt stroke length : 25 mm * lcd display provided * digital voltmeter provided for output measurement * potentiometer provided for calibration and adjustment * signal conditioning circuit inbuilt * zero adjustment and calibration facility provided * test points provided for waveform/signal observation * clearly labeled circuit diagram on front panel * proper insulated terminals and safety sockets provided, plc trainer kit :* plc make :allen-bradley / delta electronics / siemens or equivalent* digital inputs : 8 20 nos.* digital outputs : 6 12 nos. (led / relay type indication)* communication port : rs232 / usb / ethernet (if available)* programming method : ladder logic programming* toggle switches for digital input simulation* led indicators for output status indication* analog potentiometers for analog input experiments* proximity sensor interface provided* relay output interface provided* input supply : 230 v ac, 50 hz* built-in regulated 24 v dc power supply* ladder diagram programming software to be provided* compatible programming software license to be provided* suitable for basic plc programming and automation experiments, conveyor arrangement with siren :* input supply : 12 v dc / 24 v dc / 230 v ac, 50 hz* control mode : manual / automatic operation using plc* conveyor arrangement with geared dc motor provided* proximity sensor provided for object detection* start and stop push buttons provided* audio siren indication provided* plc based control and sequencing operation provided* mini conveyor setup suitable for laboratory demonstration* geared dc motor driven conveyor mechanism* smooth belt movement with roller arrangement, digital storage oscilloscope (dso) :* bandwidth: 50 - 100 mhz. * sampling rate: 1gs/s. * channels: 2 (minimum) * power supply: 100v 240v ac, 50-60 hz * automatic measurement: vpp, vavg,rms, frequency, period, vmax, vmin, rise time, fall time, + width, - width, +duty, - duty etc., * horizontal scale: 5 ns/div 50 s/div or equivalent * vertical resolution: 8 bits (2 channels simultaneously) vertical sensitivity: 1 mv/div 10 v/div (at input) * waveform math: +, -, x , , invert, fft etc., * waveform storage: 16 waveforms or equivalent communication interface: usb host, usb interface. * 7-inch color display or equivalent * input impedance - 1 m 2%, // 20 pf 2 passive probes (1x/10x), on/off control of lamp using solid state relay kit:* type : solid state relay (ssr) trainer kit* control/input voltage : 12 v / 24 v dc or up to 30 v dc* output load voltage : 230 v ac, single phase* load control : on/off control of ac lamp load* solid state relay based switching circuit* opto-isolated input control* built-in ac lamp load* manual on/off switching arrangement* led indication for input and output statu

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Central Government/Public Sector