SPL REP FOR REPLACEMENT OF OLD CI/DI/GI WATER SUPPLY PIPE LINES AND VALVES FOR CERTAIN MD ACCNS AT CHAFB

S&F GI water tubing, medium grade, galvanized, in trenches or fixed on walls/ floors/ roofs etc with and including provision of all connected fittings complete all as specified & directed of following sizes :-

100 mm dia

80 mm dia

50 mm dia

40 mm dia

25 mm dia

20 mm bore

15 mm dia

Supply and Laying of Ductile iron pipes, Flanged type, Class K-9, with centrifugally cast Flanged (spun) with factory applied cement mortar lining inside the pipes and outside with zinc coating with suitable push on joint confirming to IS 8329/2000 and connected items complete all as specified & directed at site of following sizes :-

150 mm bore

100 mm bore

Supply and Laying of Ductile iron pipes, Class K-9, with spigot and socketed ends, centrifugally cast, flanged (spun) with factory applied cement mortar lining inside the pipes and outside with zinc coating with suitable push on joint confirming to IS 8329/2000 and connected items such as suitable size of nut, bolts, rubber washer etc complete all as specified & directed of following sizes :-

150 mm bore

100 mm bore

S&F Ductile iron fittings, socketed / flanged / any type, heavy duty, such as bends, tapers, tees, collars, tail pieces, reducers, etc. laid and jointed with suitable push on joints including taking down old unserviceable cast iron fittings etc complete all as specified & directed

S&F in repairs Gun metal gate valve, heavy duty, screwed both ends with iron wheel head suitable for GI water tubing including provision of necessary unions, nipple, collar etc. and taking down old/unsv gun metal gate valve alongwith GI unions, nipple and collar including cutting the old threaded portion of GI pipe and making new threading in position of following sizes :-

50 mm bore

40 mm bore

25 mm bore

20 mm bore

15 mm bore

S&F in repairs Stop valve, fancy type chromium plated with long shank and cup, cast copper alloy, screwed down, high pressure, with critch or butterfly handle, screwed both ends for iron pipe or for unions and fixed including taking down old/unsv valve any type of size 15mm bore complete all as specified & directed.

Taking down carefully old/rusted/unserviceable CI pipe of size of/upto 150 mm incl all fittings for safe custody for further disposal under schedule of credit complete all as specified & directed

Taking down carefully of old/rusted/unserviceable GI pipes of any size / dia for disposal under schedule of credit complete all as specified & directed

Excavating in trenches not exceeding 1.5 metre wide and not exceeding 1.5 metre deep and getting out in hard/ dense soil for pipe trenches complete all as specified & directed

Returning filling in including spreading leveling watering and well ramming in layers not exceeding 25cm thick with approved soil obtained from excavation complete all as specified & directed

Removing excavated soil not exceeding 50 metre and depositing at a level not exceeding 1.5 metre above the starting point complete all as specified & directed

S&F in repairs sluice valve, cast iron body with brass spindle, class-1, ISI marked, PN-1.0, both end flanged and drilled and fixed with bolts and nuts and washers including providing rubber insertion of suitable thickness including taking out old/unsv sluice valves complete all as specified & directed of following sizes :-

150 mm bore

100 mm bore

80 mm bore

M&L for construction of brick masonry valve chamber, in replacement of old valve chamber of size 900 X 900 X 900mm internal size with the following specifications complete all as specified and as directed:- (a) Demolition of existing dilapidated valve chamber of internal size 900 x 900 x 900mm including taking out chamber cover. (b) Foundation in PCC 1:4:8, type D2 using 40mm graded stone aggregates to a size of 1560 x 1560 x 100mm thick. (c) Brick masonry walls, 230mm thick, built in cement mortar 1:4. (d) Coping over brick masonry walls in PCC 1:2:4, type B1, using 20mm graded stone aggregates, 75mm thick. (e) Rendering in cement mortar 1:4, 15mm thick to internal surfaces and 150mm alround the external surfaces. (f) 3 mm thick MS sheet cover fixed to MS frame work made of 50x50x6mm thick angle iron with suitable MS hinges including providing of locking arrangement. (g) Painting steel surfaces with two coats of synthetic enamel paint over a coat of red oxide primer

All as per Sl Item here-in-before 12.00 but for brick masonry valve chamber of size 750 X 750 X 750 mm.

All as per Sl Item here-in-before 12.00 but for brick masonry valve chamber of size 1200 X 1200 X 1200 mm.

M&L for cutting cast iron/DI pipes in position for insertion of new fittings or for carrying out repairs of sizes of 150/100/80 mm pipes complete all as specified and as directed.

Supply, installation and testing of Chlorine Dosing System, mechanically actuated, variable ecentric type motor driven dosing system, high flow rate of 0-30 LPH and high pressure of 10 Kg/cm2, flanged, vertically mounted with TEFC Induction Motor, directly coupled, Motor capacity 0.25 HP, 1440 RPM, including all accessories injection check valve (1/2" NPT - M "Y" Strainer 1/2" BSP-F), suction strainer (Y type PP/PVC) and discharge tubing not lesss than 3 mtrs complete all as specified & directed including the following accessories :- (a) Service Tank Model No AQUA 1006 of net capacity 100 ltrs of FRP dosing tank, Top dia 540mm x Bottom dia 480mm x Height 575 mm consisting of water inlet line (b) Dosing pump inlet arrangement, drain, Overflow level gauge, inspection port (c) Agitator 120 watt 960 RPM single phase, flange mounted motor with plastic shaft and impellor (d) Provision of mounting lid (e) Pump fitted with mounted on heavy duty MS fabricated frame and painted with anticorrosive paint. Note :- (a) Make - Aquajio Technologies Brand Aquafit (ACDS) or Techno-commercially equivalent in Declibac/Kirloskar as approved. (b) Old/unsv dosing system with accesssories is to be disconnected and deposited to MES store. The cost of the same shall be deemed to be included in the quoted rate.

Supply of Chlorine and PH Test Kit for estimation of resudual chlorine in water comprises of plastic box, two tube, droper and colour filter for colour estimation complete all as specified & directed. Make-Aquajio Technologies or Techno-commercially equivalent in Hydrova or Aquasol make as approved.

Supply of Calcium Hypochlorite 65%-75% chlorine content in a white or grayish white granular solid chemical (Calcium based granular disinfectant chemical for potable water treatment), 45 Kg each drum of factory sealed HDPE container complete all as specified & directed. (Make-Aquajio Technologies or equivalent in M/s Bihar Caustic & Chemicals M/s hybridmake as approved)

M&L for cement concrete type C2 1:3:6 using 40 mm graded stone aggregate for making pedesatal supports for DI/GI pipes including making of smooth finish complete all as specified & directed

M&L for mechanical joint including required work as required at site complete all as specified and directed for the following sizes :-

100 mm bore

80 mm bore