8531/E8 REPAIR AND MAINT TO EXTERNAL WATER SUPPLY DISTRIBUTION SYSTEM WITH CONNECTED SERVICES AT NARANGI AND BASISTHA AREA UNDER GE GUWAHATI

Amount

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 as directed.

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 as directed.

Removing excavated material (soils) n exc. 50m and depositing where directed at a level n exc. 1.5 m above the starting point complete all as specified and as directed.

S&F 3-layer PP-R (Polypropylene random copolymer) pipes 110mm 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 as directed.

S&F 3-layer PP-R (Polypropylene random copolymer) pipes 90mm 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 as directed.

S&F 3-layer PP-R (Polypropylene random copolymer) pipes 63mm 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 as directed.

Supply, laying, jointing and testing of 150mm bore Ductile Iron pipe, Class K-7 suitable for tyton joints in any length, socket & spigot ends (ISI marked) centrifugally laid in trenches and the like including taking down old pipe in any position complete all as specified & as directed.

Supply, laying, jointing and testing of 200mm bore Ductile Iron pipe, Class K-7 suitable for tyton joints in any length, socket & spigot ends (ISI marked) centrifugally laid in trenches and the like including taking down old pipe in any position complete all as specified & as directed.

Supply, laying, jointing and testing of 250mm bore Ductile Iron pipe, Class K-7 suitable for tyton joints in any length, socket & spigot ends (ISI marked) centrifugally laid in trenches and the like including taking down old pipe in any position complete all as specified & as directed.

Supply and fixing Ductile Iron/cast iron, specials with spigot and socket ends fittings such as bends (any type, radius and angle), tapers any type, straight, bend, increasing, decreasing or double socket etc, tie pieces single branch, Y junction, double branch cross (all sockets or socket and spigot) mechanical joints, collars, caps and plugs(ISI marked) etc upto 250 bore pipes 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 as directed.

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

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

Supply and fixing, 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 as 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 & as 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 & as 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 & as directed.

Supply and fixing in repair 200 mm bore cast iron flanged & drilled both ends non Return 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 & as directed.

Supply and fixing in repair 250 mm bore cast iron flanged & drilled both ends non Return 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 & as directed.

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

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

M&L for attending leakage of underground DI/CI/GI pipe of size 150mm to 250mm dia of pipe including excavation in hard soil/ road surface/ PCC surface, cutting, welding as per site requirement, jointing under, a such as lead joint/ gas kit jointing/CI fitting, nuts & bolts, washers and refilling of pipe, inserting joints or pipe length 2mtr to 6mtr (pipe shall be measured seperately) contractor shall arrangement of T&P i.e JCB, excavators for excavation and rectification work in civil area, contractor shall take care of safety measures in civil area. Rates includes arrangment of T&P and required labours for attend leakage of DI/CI/GI pipe and making disturbed surface good as per existing complete all as directed by Engr-in-Charge. Note:- (i) Excavation upto 2x6mtr shall be deemed to be included in the quoted rate. (ii) Jointing materials and pipe shall be paid under the respective items.

M&L 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 as directed.

A K ENTERPRISE (BID ID -3334131)

M.G. ENTERPRISE (BID ID -3333368)