Coimbatore City Municipal Corporation-CCMC has published Tender For Replacement Of Submersible Centrifugal Sewage Non Clog Pumps At Telungupalayam Privu Perur Main Road In Ward No. 76, South Zone Coimbatore Corporation.. Submission Date for this Tender is 10-05-2023. Submersible Pump Tenders in Coimbatore Tamil Nadu. Bidders can get complete Tender details and download the document.
| Sl. No. | Item Description |
| 1 | Engaging mazdoor class l for removal of precast slab for lifting the old sewage non clog pump etc complete |
| 2 | Lifting of 7.5 HP sullage motor for carrying out service work at the same site etc. |
| 3 | Supply and delivery of submersible centrifugal sewage non-clog pumps, vertical spindletype pump , wear resistance with submersible motor for the various duty conditions asstated in the annexure. Pump shall be capable of handling min 100, mm solid size withsewage specific gravity of up to 1.05. Pump shall be of robust construction . Liquidpassages shall be finished smooth and designed as to allow free passage to solids.Pump Impeller should be of Non-clog semi open type , single vane / multi vanepreferably contra bloc or vortex impeller design. Double mechanical seal with siliconcarbide faces should be provided to protect the motor from ingress of Sewage alongthe shaft. The critical speed of the rotor shall be at least 30% above the operatingspeed. Pumps to have double bearings between the pump & motor. The bearings lifeshall be minimum 100,000 hrs of operation with greased for life. Pump should beprovided with automatic coupling device including pedestal, duck foot bend, stainlesssteel guide pipe or related accessories of Suitable size to facilitate lifting and loweringinto guide rails for easy maintenance. Pump shall be provided with a stainless steellifting chain conforming to BS 970 Gr 304. Pump speed shall be of 9600rpm for highduty pumps and 960/1450 rpm for low duty pumpsets. Casing and impeller should be ofCl Gr. FG 260 :1S210 more preferably with hardened impeller. Shaft should be ofstainiess steel AISI 410. All the fasteners and bolts shall be of AISI 410. The submersiblemotor shall be operated with 3 ph , 415 V( + or10%), 50 Hz(+or 5 % ) dryinduction type. Motor shall be capable of giving rated output without reduction in theexpected life span when operated continuously . The rotating assembly shall bedynamically balanced as per standards. The starting current of the motor shall notexceed 200% of rated full load current for Star / Delta or ATS starting under anycircumstances .The motor shall be suitable for full voltage star delta / ATS starting. The locked rotor current of the motor shall not exceed 600% of fullload current unlessotherwise specified. Motor shall be designed to i withstand 120 % of rated speed fortwo minutes without any mechanical damage . fn ether direction of rotation. Th motor vibration shall be within the limits ecified |
| 4 | Telungupalayam privu |
| 5 | Supply and delivery of 7.5HP 3 phase panel board etc., complete |
| 6 | Supply of floart for 7.5 HP sullage motor including the cost of 2x1.5sq.mm cable from panel boards to float into the feet collection well etc., completed |
| 7 | supply of nylon double prided heavy duty HDPF hose with suitable clambs etc., complete |
| 8 | supply and fixing of self aligned base for supporting the centrifugal motor etc.,complete |
| 9 | supply of 100mm dia with steel flange set with 8 seat of matching holes etc.,complete |
| 10 | Labour Charges for erection of Horizontal shaft,centrifugal pumpset (Coupled/Monoblock) in bore well/Open well including fixing of suction pipe and foot valve upto a maximum depth of 7 metres and delivery pipes to the required length with valves, pressure gauges upto the exterior wall of pump room and erection of panel board consisting of TPIC switches starter, Voltmeter, Ammeter, Capacitor single phasing preventor and laying and jointing the cables and twin earthing as per IE rules including providing bed blocks etc., complete and operating the pumps and trial run for 10 days including signing |
| 11 | Supply and run of 4 x 6 sq.mm. (84/0.3) PVC insulated SC unsheathed copper conductor of 1100V grade in 32mm dia GI pipe (Class ‘B") suitably bent at both ends with necessary angle iron up right and end supports for mains from EB post to metering etc. complete |
| 12 | Supply and laying of 4 x 6 sq.mm PVC armoured LTUG cable in a trench to be excavated at a depth of 0.75 metre putting 0.15 metre layer of sand and covering the cable completely with bricks and sand and refilling the earth to make good from starter to Motor |
| 13 | Add :- GST @ 18% |
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