WBPHED/EE/BHM/NIeT_09/26-27_3

Opening & closing of all the different dia SluiceValves (80 rumdia to350 mmdial on different places along the alignment of the rising main and distribution main at different places over the command area daily as and when required for regulating the supply of water and distributing' water all over the command area smoothly including changing and restoration of gland packing of sluice valve, air valve if required including opening the cap / plug of wash out point or opening the sluice valves including de-jointing flange joints (80 mm to 350 mm dia l including repairing works and cleaning the pipelineor changing o fgate,spindle or liner etc.of sluice valves all complete,restoration works to be done including earth work in the excavation bailing out of water, re-filling the excavated earth, taking out of RCC slab or slab cover and refaxing true to position etc. all complete as per the specification and direction of EIC. Labour Charged for Plumbing Helper.  (9 nos. Plumbing Helper. require for operating 3 nos. water supply scheme Per Day) So, Total Mandays require for one year maintenance service = (9*365) days =3285 days

Repairing charges for changing of gland packing of sluice valve/air valve with supplying of Gland Packing grease etc bailing out of water including removing the top cover slab of valve chamber and refixing the same comletion of work as per direction of EIC i) 80mm to 125 mm dia

Repairing of flange joint after dismantling the joints, removing the unserviceable rubber insertion and supply new rubber insertion and supply upto 50 % of new nuts and bolts all complete including necessary earth work dewatering & supply of washer etc. all complete as per direction of EIC  a) 80 mm dia. to 100 mm dia.

Repairing of air valves by changing the ball with changing the requisite nuts and bolts and rubber insertion all complete as per direction of EIC.

Making barricading for protecting the trench to avoid any accident including making arrangement of road light during the night.

(i) Carrying charges of materials M.S. Rod, D.I. Pipe, G.I. Pipe, TW materials, C.I.Dt. Joints, A.C. Coupling, Brass Strainer, H.D.P. Strainer, A.C. Pressure Pipes, M.S. Pipes etc. by road from different stack yard to any places within West Bengal including loading (upto a lead of 20 mtr. from loading point), packing, unloading and stacking charges etc. complete  as per direction.  ii) Carriage of pipe and specials from Depttl. Store includign loading and unloading and stacing at store of any PWSS By Van or other means

Cleaning silt (everymonth) from the over head reservoir, cleaning washing and disinfecting the same with bleaching powder, including machinery, tools andplants as per direction of EIC complete (Bleaching powder will be supplied by the agency).  a) Upto 1.50lakh Gallon capcaity OHR

Dismantling existing ferule with fitting and refixing the same after cleaning and washing of pipe line upto stand post.

Labour charge for repairing of UPVC/HDPE pipe by using UPVC socket and solvent cement including earthwork in excacation,with dewatering and necessary tracing out the actual position of bursting /leakage, cutting the pipe of required length in the trenches and replacing the same with new pipe (as per required length) including firring fixing after roughing the UPVC surface & supplying and applying solvent cement, back filling the treenches with excavated earth upto the same as per direction of EIC all complete (UPVC pipes and specials, solvent cement to be supplied by the Agency) Unserviceable broken withdrawn surplus materials are to be deposited to the Deptt. store. iii) 90mm dia

iv) 110mm dia