Washing, Cleaning, Disinfecting of pipe line network from Podder Fruit and Vegetables to Laxmi fly ash brick manufacturer and pipe line towards WBIIDC office at Coochbehar I.Park, Chak-Chaka, Coochbehar-736156.

Earth work in excavation of foundation trenches or drains, in all sorts of soil (including mixed soil but excluding laterite or sandstone) including removing, spreading or astacking the spoils within a lead of 75 m. as directed. The item includes necessary trimming the sides of trenches, levelling, dressing and ramming the bottom, bailing out water as required complete. a) Depth of excavation not exceeding 1,500 mm

Cutting of C.I/D.I pipes for fitting with pipes and-or specials of similar or dissimilar materials at the time of laying without damaging any part of the required length including taking out of the broken pieces from the trench and restacking the same at the specified location as per direction of the Engineer-in-Charge.a) 80 mm. dia.

b)100 mm dia

Taking out C.I,/ D.I. pipes with specials and valves including stacking the same within a lead of 30 M as per instruction of the Engineer-in-Charge, (Excavation. dewatering. earth filling etc. will be paid separately). a) 80 mm dia

b)100 mm dia

Lead jointing to C.I pipes and specials with supply of lead and spun yarn all complete to make the joint water tight at required hydraulic pressure as per specification & direction of the Engineer-in-charge. (Lead shall be supplied departmentally to the Agency at specified Issue rates and cost thereof shall be recovered from the. works Bill of theAgency) a) 80 mm dia

b)100 mm dia

Flange joint to C.I./D.I/MS. pipes and specials including supply of rubber gasket. nuts. bolts. washers etc. of best quality to make the joint watertight at required hydraulic pressure all complete as per specification & direction of the Engineer-in-Charge. a) 80 mm dia

b) 100 mm dia

All types of Cl specials (viz. Bend. Tee. Teper. Tail piece. Collar. Bell mouth with Puddle coller etc. size conforming to IS specification 1538: 1993)

Supplying, fitting and fixing cast iron spun pipe conforming to I.S.1536/1976 with all necessary specials including cutting trenches in any soil or through masonry, concrete etc., if necessary,and mending good all damages including jointing pipes with Tyton joints as per manufacturer's specifications and filling up the trenches all complete but excluding the cost of masonry or concrete work, if required. Class B: a) 80 mm dia

b) 100 mm dia

Earth work in filling in foundation trenches or plinth with good earth, in layers not exceeding 150 mm. including watering and ramming etc. layer by layer complete.(Payment to be made based on the basis of measurement of finished quantity of work.

Cost iron double flanged manually operated sluice valves generally conforming to IS 14846 2000, having four faces and spindle nut of gunmetal. inside screw non- rising type quality gunmetal /AISI 410 spindle: seat tested to 10kg/CM² and body tested to 15kg/CM², flanges flat faced and drilled to 1.S.: 1538 1993. Painted black all over with asphalt base paint. Valves tested by closed end method. a) 80 mm dia

b) 100 mm dia

Disinfection of water main by filling with water containing bleaching powder of sufficient quantity capable of maintaining a residual chlorine concentration of 10mg/l within the main after a detention period of two hours and flushing the same with fresh water all complete as per specification and direction of the Engineer-in-Charge. [After successful completion of the process, disposal of water and bacteriological testing of sample of flushed out water from the mains should be made at no extra cost] a) 80 mm dia

b) 100 mm dia

Supplying, fitting and fixing of C.I. Mechanical Compression flexible Collar Couplings suitable for C.I. Spun Pipes (as per IS: 1536) and D. 1. Pipes (as per IS: 8329) complete with Sealing Rubber Gasket of EPDM quality (IS:5382/1985 Type-4), Cast Iron Follower Glands and Mild Steel Nut Bolts (Zinc Coated). The whole assembly should be mechanically and hydraulically tested to the provisions as laid down in IS: 1538. Fitting and fixing should be in proper position with proper care of main pipe line for leak proof condition. a) 80 mm dia

b) 100 mm dia

Lowering, fitting and fixing of all types of valves in proper position and alignment using chain pully block or crane (for diameter above 250 mm) by providing temporary support, as required, gaskets, nuts & bolts etc. all cornplete as per specification and direction of the Engineer-in-Charge. [The rate includes cost of flange joints] a) 80 mm dia

b) 100 mm dia

Taking out sluice valve by unscrewing nuts and bolts carefully and stacking the same within a lead of 30M including bailing out water from the Sluice valve chamber due to normal seepage. if any. all complete as per direction of the Engineer-in-Charge. (Dismantling of Sluice Value Chcmber, where necessary, shall be paid extra as per relevant items of Schedule of Rates) a) 80 mm dia

b) 100 mm dia

Cleaning distribution pipelines by opening of valves of any size including Each string, stirrups and draining out of the accumulated water there of using portable pump if necessary