REPAIR/MAINT TO EXTERNAL WATER SUPPLY DITRIBUTION SYSTEM WITH CONNECTED SERVICES AT NARANGI AND BASISTHA AREA UNDER GE GUWAHATI

Amount

Material and Labour for Excavating in trenches, n exc 1.5 m wide and n exc 1.5 m in depth; for laying of GI/CI/DI pipe and getting out in soft/loose soil complete all as specified and directed.

Material and Labour for Returning, filling in, including spreading, levelling, watering and well ramming in layers not exc 25 cm in soft/loose soil complete all as specified and directed.

Material and Labour for Removing excavated soils n exc. 50m and depositing where directed at a level n exc. 1.5 m above the starting pointcomplete all as specified and directed.

Supply and fixing, in repair, 250 mm bore, ductile iron pipe with spigot and socket ends class K-9 suitable for and including tyton joints in any length laid in trenches, complete including taking down of old unserviceable CI pipe all as specified and as directed.

Supply and fixing, in repair, 200 mm bore, ductile iron pipe with spigot and socket ends class K-7 suitable for and including tyton joints in any length laid in trenches, complete including taking down of old unserviceable CI pipe all as specified and as directed.

Supply and fixing, in repair, 150 mm bore, ductile iron pipe with spigot and socket ends class K-7 suitable for and including tyton joints in any length laid in trenches, complete including taking down of old unserviceable CI pipe complete all as specified and as directed.

Supply and fixing, in repair, Ductile iron/cast iron specials of spigot/socket/flanged ends like bends ( any type, radius and angle) Tapers of 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 or flanged) Mechanical Joints, collars, caps and plugs etc for upto 250 mm dia pipes complete all as specified and directed.

Taking up or down serviceable GI tube of any grade for diversion of distribution line including all fittings such as bend, tee, socket and union etc and shifting to near site as directed and following sizes :-

100 mm bore

80 mm bore

40/50 mm bore

25/32 mm bore

20 mm bore

Supply and fixing, in repair, 3- layer PP-R (Polypropylene random copolymer) pipes 110 mm outer dia ,SDR 7.4 (PN-16) UV stabilized and antimicrobial fusion welded having thermal stability for hot & cold water supply including fittings PP-R plain & brass threaded type polypropylene random, jointing complete including laid in trenches/floor at places where directed complete all as specified and directed.

Supply and fixing, in repair, 3- layer PP-R (Polypropylene random copolymer) pipes 90 mm outer dia ,SDR 7.4 (PN-16) UV stabilized and antimicrobial fusion welded having thermal stability for hot & cold water supply including fittings PP-R plain & brass threaded type polypropylene random, jointing complete including laid in trenches/floor at places where directed complete all as specified and directed.

Supply and fixing, in repair, 3- layer PP-R (Polypropylene random copolymer) pipes 63 mm outer dia ,SDR 7.4 (PN-16) UV stabilized and antimicrobial fusion welded having thermal stability for hot & cold water supply including fittings PP-R plain & brass threaded type polypropylene random, jointing complete including laid in trenches/floor at places where directed complete all as specified and directed.

Supply and fixing, in repair, Tubes, 'medium grade', galvanised, with all fitting; of size 25 mm dia laid in trenches jointing complete including laid in trenches/floor at places where directed complete all as specified and directed.

Supply and fixing, in repair, Tubes, 'medium grade', galvanised, with all fitting; of size 20 mm dia laid in trenches jointing complete including laid in trenches/floor at places where directed complete all as specified and directed.

Supply and fixing in replacement PP-R Gate valves(brass insert) complete for outder dia of pipe 63 mm complete all as specified and directed.

Supply and fixing in replacement Gun-metal, globe or gate valves, with iron wheel head, screwed both ends for iron pipe and fixed 25 mm complete all as specified and directed.

Supply and fixing in replacement Gun-metal, globe or gate valves, with iron wheel head, screwed both ends for iron pipe and fixed 20 mm complete all as specified and directed.

Supply and fixing in repair 250 mm bore cast iron flanged & drilled both ends sluice valve, (ISI marked) long body type, conforming to IS 14846-2000; Class PN-1.6 with iron wheel head & brass spindle including all jointing materials and mild steel nuts, bolts, washers, rubber / fibre board gaskets etc and testing complete all as specified and directed..

Supply and fixing in repair 200 mm bore cast iron flanged & drilled both ends sluice valve, (ISI marked) long body type, conforming to IS 14846-2000; Class PN-1.6 with iron wheel head & brass spindle including all jointing materials and mild steel nuts, bolts, washers, rubber / fibre board gaskets etc and testing complete all as specified and directed..

Supply and fixing in repair 150 mm bore cast iron flanged & drilled both ends sluice valve, (ISI marked) long body type, conforming to IS 14846-2000; Class PN-1.6 with iron wheel head & brass spindle including all jointing materials and mild steel nuts, bolts, washers, rubber / fibre board gaskets etc and testing complete all as specified and directed..

Supply and fixing in repair 100 mm bore cast iron flanged & drilled both ends sluice valve, (ISI marked) long body type, conforming to IS 14846-2000; Class PN-1.6 with iron wheel head & brass spindle including all jointing materials and mild steel nuts, bolts, washers, rubber / fibre board gaskets etc and testing complete all as specified and directed..

Supply and fixing in repair 80 mm bore cast iron flanged & drilled both ends sluice valve, (ISI marked) long body type, conforming to IS 14846-2000; Class PN-1.6 with iron wheel head & brass spindle including all jointing materials and mild steel nuts, bolts, washers, rubber / fibre board gaskets etc and testing complete all as specified and directed..

Supply only Altoch GP/Altoch CH in granualer form in sealed 45 Kg drum complete all as specified and directed.

Supply only bleaching powder in sealed 25 Kg packet/bag complete all as specified and directed.

Material and Labour for construction of brick masonry valve pit of size 120x120x120cm (internal dimension) one brick thick wall built in CM (1:4) on 100mm thick PCC (1:4:8) type D2 (using 40mm graded stone aggregate) as in foundation, and 15mm thick rendering in cement mortar (1:4) both externally and internally, external plaster shall be up to 25cm below GL, providing valve pit cover made of 1.60mm thick MS sheet/plate, including provision of hinges, handle and locking arrangement including 40X40X3mm angle iron frame fixed on top of valve pit by means of MS hold fast 40x5mm and 150mm long, embedded in PCC (1:2:4) type B-1 (using 20mm graded stone aggregate) and wall of sub class 'B' bricks, including two coats of anti-corrosive paint over a coat of red oxide zinc Chrome primer and necessary earth work in soft/loose soil complete all as specified and directed..

V.V.Construction (BID ID -3102189)

SHANKAR ENTERPRISE (BID ID -3099041)

M/s JK Jangid and Company (BID ID -3101779)

Goswami Traders (BID ID -3101037)

LAXMI & GANESH ENTERPRISE (BID ID -3101051)

M/S K NATH AND CO. (BID ID -3101412)

S. R. TRADING (BID ID -3101323)

M/S SEWAK SINGH (BID ID -3101372)