Air Lock Relay Tenders

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Central Government/Public Sector

CTN :36186421

23 May, 2024 NA

Nabinagar - Bihar

Tender For leak off steam valve spares from dresser masoneilan - smart positioner,ap-31123111,dresser, air lock relay,0-7kg/cm2,single acting, regulator,fltr,0-7kg/sq.cm,brass,air, booster relay,204500389-999-0000,valve, valve,sol,quick exhaust,nucon,511, o-ring,202501529-680-0000,masoneilan, valve,three-way transfer,08-80h, valve,three-way transfer,78-80h

Central Government/Public Sector

CTN :36177849

23 May, 2024 23.72 Lacs

Raebareli - Uttar Pradesh

Tender For providing of custom bid for services - 200134226 maintenance contract of ci systems and equipments for fgd area at ntpcunchahar stage4 for one year- 10) maintenance contract of c&i systems and equipments for fgd area at ntpc-unchahar stage-4. 10.10 item service code no.: cipna00gn400 desc:- removal & remounting of pneumatic actuator(diaphragm type or power cylinder type) will consists of any combination of following activities: 1. removal of pneumatic connections and required instruments like solenoid valve, limit switch, afr, positioner, pft etc from actuator and decoupling from valve after ensuring proper isolation from process side. 2. removal of actuator from its position. 3. transportation of actuator from its location to a safe place. 4. remounting the actuator after clearance from mechanical maintenance. 5. re-fixing /replacing the related accessories removed earlier as per point no-1 above and restoring pneumatic connections including cable dressing, copper tubing, tagging etc. 6. final operation checking from local & control room (fgd ddcmis system) after calibration and feedback adjustment. defect liability period: 01 week 10.20 item service code: - cipna00gn106 des:- checking/pm of pneumatic control system pneumatic actuator (diaphragm type or power cylinder type) and its mounted accessories, will consists of any combination of following activities: a) checking/pm of solenoid valves mounted on pneu. act. i. check solenoid coil physical and electrical healthiness and tightness of terminals if required ii. clean its external parts. iii. check & adjust air supply pressure as per requirement iv. check tightness checking of all parts. v. energize with correct voltage and see solenoid valve operation if required as per instruction of area in charge. vi. if solenoid valve is not working or coil resistance is not adequate replace solenoid valve or coil and check operation. vii. tighten checking of wires at terminals & at junction boxes. b) checking/pm of positioner and position feedback transmitter mounted on pneu. act. i. check & adjust supply pressure as per requirement. ii. clean its external parts of positioner and check its operation, if necessary, as per instruction of area in charge. iii. if required, connect pneumatic test signal at i/p, 0.2 kg/cm2. adjust positioner zero adjustment spring, till actuator comes to zero position. adjust 4ma o/p of pft with zero pot. iv. raise pneumatic test signal to 1.0 kg/cm2 and adjust span of positioner, till actuator reaches 100% position. adjust 20ma o/p of pft with span pot. v. repeat steps ii to iv till the required repeatability is achieved. vi. tighten terminals at junction boxes. c) removal and restoration of c&i connections as per requirement during unit shutdown or as per requirement. i. removal of accessories like solenoid valves, positioner, i/p converter, air lock relay, air filter, air filter regulator, limit switch, position feedback transmitter, volume booster, pneumatic lines, etc. ii. keeping all accessories safely at suitable location. iii. restoration of all accessories removed and connection of air lines as per original scheme. iv. checking of functioning of actuator after restoration of connection. v. calibration / adjustment of complete system if required. d) checking/pm of i/p converter/smart positioners if any i. adjust supply pressure as per requirement. ii. check ma input to i/p converter/smart positioner. iii. check i/p converter/smart positioner o/p with portable gauge. it should correspond to its characteristic, if not, remove it and send to c&i lab for calibration/repair. iv. bring i/p converter/smart positioner from c&i lab and fit it in line. v. connect ma signal and normalize the system. vi. tighten terminals at junction box. e) checking/pm of regulating type actuator operation. i. check and adjust supply air pressure as per requirement of respective actuator. ii. set demand to 0% from control room after taking p

Central Government And Public Sector

CTN :36090957

22 May, 2024 NA

Kudankulam - Tamil Nadu

Tender For corrigendum : supply retrofitting testing and commissioning of numerical line protection relays - supply, retrofitting, testing, and commissioning of numerical line protections relays for 400kv main-i relays and supply of spares as per attached the technical specification , supply, retrofitting, testing, and commissioning of numerical line protections relays for 400kv main-ii relays and supply of spares as per attached technical specifications , supply, retrofitting, testing, and commissioning of numerical line protections relays for 230kv main-i relays and supply of spares as per attached technical specification , supply, retrofitting, testing, and commissioning of numerical line protections relays for 230kv main-ii relays and supply of spares as per attached technical specifications , supply, installation, testing, and commissioning of escada and gps time synchronizing system and supply of spares as per attached technical specification

Central Government/Public Sector

CTN :34200058

15 May, 2024 NA

Angul - Odisha

Tender For bid to ras bid to ras bid to ras supply of low load feed control valve - tag no.-fdv-14,1,4 inch ss tubing- 12 meter for each tag,ss fittings for connection to air filter regulator- for each tag,ss fittings for connection to air lock relay- for each tag,ss fittings for connection to ia header isolation valve - for each tag,ss equal tee - for each tag,ss 1,2 inch npt m x 1,4 inch od tube connector- for each tag,valve diagnostic and configuration software- for all tags,cv test charges for each control valve,gaskets-commissioning spares,gland packing-commissioning spares,mandatory spares-fdv14-critical control valve -pneumatic and electro-hydraulic actuator assembly,mandatory spares-fdv14-critical control valve -diaphragms, o rings, seals etc. of all types make etc.,mandatory spares-fdv14-critical control valve -solenoid valves if applicable,mandatory spares-fdv14-critical control valve- smart positioner units complete unit and accessories link assembly,mandatory spares-fdv14-critical control valve -pneumatic air-filter- regulator of each type,make ratin

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