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| 1 | RO PLANT:MAKE: ROCHEM, TYPE: RO1530 DTO4-20S, QTY: 03, LOCATION: GEAR ROOM | Carry out the following Refit /2/3 Yearlyroutines on 03 nos. RO plants byMaterials and spares Firm supply.(i) Check DA filter Dydlomite level and top up as required.(ii) Check nitrogen charge of pulsation damper and charge it if required.(iii) Service HP pump suction and discharge valve. (iv) Replace seal kit of HP pump.(v) Replace all high pressure flexible hoses.(vi) Replace mechanical seal following pumps (a) PK-30 pump (b) PK-20 pump (vii) Calibrate torque wrench. Calibration certificate to be provided.(viii) Calibrate hand held conductivity meter and provide calibration certificate.(ix) Replace all lowpressure hoses. (x) Inspect PS 51, PS 71, PS 81 pressure switches. Replacement to be undertaken against AWRF. (xi) Check and replace PT-60 and potentiometer as required. (xii) Clean conductivity meter. Calibrate and prove it and provide calibration certificate. Spares-CG Supply. Material- firm supply. |
| 2 | RO PLANT (M/S ROCHEM), PAC –FIRM (M/S ROCHEM, MUMBAI) 2 | Overhaul 03 in no RO Plant motors 415V, 3Phase, 50Hz, 7.5KW, (Make- Bharat). Overhauling includes record of Insulation prior dismantling of motor and withdrawalof rotor, Renewal of DE/NDE ball bearing (6201-Z & 6204-Z), Painting of heat resistive paint on External/Internal part of Yoke, apply of varnish and baking up 10 hour. Record of insulation, starting/running current and proving of motor for satisfactory operation on completion of overhauling.(Maintenance schedule no. LP-44). Spares – CG supplyMaterial – firm supply |
| 3 | RO PLANT (M/S ROCHEM), PAC –FIRM (M/S ROCHEM, MUMBAI) 3 | Overhaul 03 in no Sea water Motor for RO Plant 415 V, 3 Phase, 50Hz, 0.55KW, (Make- Gundfos). Overhauling includes record of Insulation prior dismantling of motor and withdrawal of rotor, Renewal of DE/NDE ball bearing (6201-Z & 6204-Z), Painting of heat resistive paint on External/Internal part of Yoke, apply of varnishand baking up 1o hour. Record of insulation, starting/running current and proving of motor for satisfactory operation on completion of overhauling (Maintenance schedule no. LP-44). Spares – CG supplyMaterial – firm supply |
| 4 | RO PLANT (M/S ROCHEM), PAC –FIRM (M/S ROCHEM, MUMBAI) 4 | Overhaul 03 in noRO plant control panel Overhauling includes functional checks of PLC unit (03No), Magnetic Contactor (3TF30 10 E, Qty – 06 Nos, Aux. Contactor (3TF32, Qty – 03) Nos),Control Transformer (415/230/24 V, 0.32 KVA, Qty – 03 Nos), Three Phase Voltage Relay (DPB 01, Qty – 03 Nos), 230 V AC relay, Qty – 12Nos,24VRelay,Qty–03Nos,PTCT(03Nos).CalibrateOLR(3RV1021-1AA10),range 1.1 – 1.6 A, Qty – 09 Nos . Starter to be proved for satisfactory operation on completion of overhauling with motor. Calibration certificate with limits to be handed over to Ship.Spares – CG supplyMaterial – firm supplyCalibration certificate to be provide by firm. |
