REPAIR / REPLACEMENT OF EXTERNAL WATER PIPE LINE VALVE PIT CHAMBER, WATER CONTROLLING VALVE ETC AT VARIOUS LOCATION AT MIL STN AGARTALA

Amount

Supply and fix CI non-return valve(NRV) 100 mm dia as per IS 5312, flanged end with nuts & bolts jointing etc complete including taking down the old unserviceable one all as directed.

Supply and fix Cast Iron Air Valves with two air Outlets, conforming to IS 14845 of size 100 mm dia bore and fixing up in Cast Iron Water supply mains of size 50 mm dia.with nuts & bolts jointing etc complete including taking down the old unserviceable one all as directed.

Excavation in trenches, n exc 1.5m wide and n exc 1.5m in depth in soft/ loose soil for foundation etc, or for shafts, wells/laying of pipeline cesspits, manholes, pier holes, etc. n exc 10 sq m on plan and n exc 1.5m in depth and getting out.

Returning, filling in, including spreading, leveling, watering and well ramming in layers not exc. 25 cm all as specified and directed.

Removing excavated material n exc 50m and deposting where directed at a level n exc 1.5m above the starting point.

Taking up CI/DI/GI water mains of 150 mm dia (including all fittings), with spigot and socket ends and lead joints including burning out joints and recovering lead complete all as directed.

All as per item No. 6 here-in-before but of size 100mm dia pipe.

Material & Labour for ductile iron pressure pipe 150 mm bore centrifugally cast with socket & spigoted ends Class K- 9, ISI marked duly embossed suitable for (push on joint) rubber gasket D jointing with inside cement mortar lining with internal metalic zinc coating and external black bitumen coating including jointing material complete all as specified and as directed.

All as per item No. 8 here-in-before but of size 100mm dia pipe.

Material & labour for DI Fittings Bends (any type, radius and angle) tapers any type (straight, bend, increasing, decreasing or double socket etc.,) Tee pieces, single branch, "Y" junction, double branch, cross (all sockets or socket and spigot) collers, caps suitable for spigot and socketed pipes upto 150mm bore size complete all as directed & specified.

Supply and laying 3 layer PP-R polypropyline random copolymer concealed pipes 160 mm bore of SDR 7.4 (PN-16) UV stabilised and anti-microbial fusion welded having thermal stability for water supply including all PP-R plain & brass threaded polypropyline random fittings fixed complete to laid in trenches complete all as specified including all fittings etc.

All as per item No. 11 here-in-before but of size 110 mm dia pipe.

Supply & fixing connecting and testing of CI sluice valve ,ISI marked duly embossed 150 mm bore both ends flanged,with CI body and brass spindel with bolts and nuts ,operating wheel etc.including taking down old unserviceable, non rising type class PN-1.6 including ,jointing material rubber gasket, complete all as specified and directed.

All as per item No. 13 here-in-before but of size 100 mm bore.

All as per item No. 13 here-in-before but of size 80 mm bore.

M & L Cutting hard standing / road for laying of pipe complete all as specified and as directed.

Material and labour for PCC (1:4:8) type D-2 (using 40mm graded aggregate) for filling and making good of disturbed surfaces of road/hard standing etc complete all as specified and as directed

Material & labour in repair for constraction of 230mm thick bnrick masonary valve chamber built in CM 1:6 of valve pit of size 900x900x1200mm (internal size) with 100mm thick foundation using PCC 1:4:8 type D2 with 100mm offset,15mm thick plastering internally and 15cm below GL externally in CM 1:6, 3mm thick MS sheet cover ,double/single door welded to 50mmx50mmx6mm MS angle iron fram fixed with hold fasts in PCC 1:2:4 tyupe B1 coping 50mm thick, 20mmx6mm flat iron hinges with loocking arrangement including lock 65mm brass and keys, MS handies and applying one coat of red oxide primer and two coats of synthetic enamel paint to all steel surfaces including excavation & earth work in any type of soil / rock and disposal of surplus soil to a distance not exceeding 50m complete all as specified and directed.

All as per item No. 18 here-in-before but of size 900x900x900mm (internal size)

NOTES :- 1. The amount of schedule of credit shall be deducted from the total of this BOQ for arriving at contract sum. 2. Unless otherwise specified the rates for PCC shall deemed to include the cost of formwork shuttering etc, required for complete and proper execution of the work. Refer Schedule 'A' notes for details.

M/S Ajoy Acharjee (BID ID -3375261)

M/S PAUL ENTERPRISE (BID ID -3375877)

M/S SANKAR GOPE (BID ID -3376103)