8718/BOR/E8 Repair /maintenance of external water distribution and repair/maint and replacement of corroded GI/CI pipe lines and allied works at Domestic area at AF Stn Borjhar under GE AF Borjhar

Amount

Excavation in trenches not exceeding 1.5 meter wide and not exceeding 1.5 meter in depth and getting out in loose/soft soil for removing/laying of pipe line, complete, all as specified and directed.

Returning, filling in including spreading, leveling and well ramming in layers not exceeding 25 cm in soft/loose soil, complete, all as specified and directed.

Removing excavated soil/materials, not exceeding 50 meter and depositing where directed at a level not exceeding 1.5 meter above the starting point, complete, all as specified and directed.

Taking up unserviceable GI water main (including all fittings) complete all as directed and specified for the following bore of pipes:-

(a) 20 mm bore

(b) 25 mm bore

(c) 40 mm bore

(d) 50 mm bore

(e) 80 mm bore

(f) 100 mm bore

Supply & Laying Galvanized iron tubing, medium grade with all fittings and laid in trenches complete all as specified and directed for the following sizes:-

(a) 20 mm bore

(b) 25 mm bore

(c) 40 mm bore

(d) 50 mm bore

(e) 80 mm bore

(f) 100 mm bore

Relaying galvanized iron tubing with all fittings after cleaning internal surface of serviceable pipes by using of wire brushed and cleaning throughly with fresh water and taking out mud/soft deposited inside the pipes in any length laid in trenches complete all as specified and directed for the following sizes: Note: Old GI pipe retrieved under item No. 4.00 above shall be used for relaying.

(a) 20 mm bore

(b) 25 mm bore

(c) 40 mm bore

(d) 50 mm bore

(e) 80 mm bore

(f) 100 mm bore

Taking up CI water mains (including all fittings)with spogot and socket ends and lead joints including burning out joints and removing leads, complete, all as directed and specified for the following bore of pipes:-

(a) 80 mm bore pipe

(b) 100 mm bore pipe

(c) 150 mm bore pipe

Supply & Laying CI pipes with spogot and sockets centrifugally cast class LA in any length laid in trenches complete all as specified and directed for the following sizes:-

(a) 80 mm bore pipe

(a) 100 mm bore pipe

(b) 150 mm bore pipe

Relaying CI pipes with spogot and sockets ends after cleaning internal surface of serviceable pipes by using of wire brushed and cleaning throughly with fresh water and taking out mud/soft deposited inside the pipes in any length laid in trenches complete all as specified and directed for the following sizes of CI pipes :- Note: Old CI pipe retrieved under item No. 7.00 above shall be used for relaying.

(a) 80 mm bore pipe

(a) 100 mm bore pipe

(b) 150 mm bore pipe

M&L for Cast iron pipes with flanged ends/verticaliy cast, Class A, in any length, laid in trenches of size 100 mm dia complete all as specified and directed

S&F Cast iron sluice valve of size 150 mm bore heavy duty (PN-1) with flanged ends, brass spindle any pattern with iron wheel head conforming to IS including jointing and jointing materials, nuts, bolts,rubber gasket and washers including taking down old sluice valve etc complete all as specified.

All as per item No 11.00 abov but of size 100 mm bore.

Taking out sluice valves refacing, regrinding and refixing of size 80 mm dia complete all as specified.

Taking out sluice valves refacing, regrinding and refixing of size 100 mm dia complete all as specified.

Taking out sluice valves refacing, regrinding and refixing of size 150 mm dia complete all as specified.

Taking out reflux (NRV) valves refacing, regrinding and refixing of size 100 mm dia complete all as specified.

S&F Valve, reflux (NRV) with by-pass arrangement, complete of size 100 mm (4") dia complete all as specified and directed.

Dismantling and taking out unserviceable Cast iron fittings up to 150 mm bore pipe including burning out lead joint, complete, all as directed.

Supply and laying cast iron fittings for spigot and socketed pipes such as 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) collars, caps and plugs suitable for bore of pipe up to 150mm complete all as specified and directed.

Burning out lead joints in position including removing of old lead from the work site leeping aside for ruse or remove to store all as directed for following CI pipes :-

(a) 80 mm dia bore

(b) 100 mm bore pipe

(c) 150 mm bore pipe

Run lead joints except lead and pipe for pie and pipe spun yarn complete all as specified and directed for the following sizes:- Note: Old lead retrieved under item No. 7.00 & 19.00 above shall be reused

(a) 80 mm dia bore

(b) 100 mm bore pipe

(c) 150 mm bore pipe

M&L for Run lead joint complete with all jointing materials for the following sizes:-

(a) 150 mm bore

(b) 100 mm bore

(c) 80 mm bore

Dismantling and taking out unserviceable stop valves of following size:-

(a) 50 mm dia bore

(b) 40 mm dia bore

(c) 25 mm dia bore

(d) 20 mm dia bore

S & F cast copper alloy stope valve with iron wheel head screwed both ends for iron pipe of the following bore :-

(a) 50 mm dia bore

(b) 40 mm dia bore

(c) 25 mm dia bore

(d) 20 mm dia bore

Supply only Pig wool complete all as specified and directed.

M & L for Cutting cast iron pipes and reducing to required length before laying of following size :--

(a) 150 mm bore

(b) 100 mm bore

(c) 80 mm bore

Drilling and tapping cast iron water mains (in position) for branch connections of the internal dia 20 mm bore complete all as soecified and directed.

M & L for 3-layer PP-R Polypropylene random (co polymer) pipes SDR 7.4 (PN-16) & SDR 11 UV stablised and antimicrobial fusion welded having thermal stability for hot & cold water supply all PP-R plain & brass threaded polypropylene random fittings laid in trenches of size 20 mm dia

All as per item no 28.00 here in before but of size 25 mm dia

All as per item no 28.00 here in before but of size 40 mm dia

All as per item no 28.00 here in before but of size 50 mm dia

All as per item no 28.00 here in before but of size 63 mm dia

All as per item no 28.00 here in before but of size 75 mm dia

All as per item no 28.00 here in before but of size 90 mm dia

All as per item no 28.00 here in before but of size 110 mm dia

M & L for Making connection of PP-R distribution branch with PP-R main of following sizes by providing and fixing tee including cutting and making fusion joint etc of size 16 to 40 mm bore dia complete all as specified and directed.

All as per item no 36.00 herein above but of size 50 to 75 mm bore dia

Supply and fixing 3 mm thick MS sheet cover plate with locking arrangementsin existing valve pit and removing of old / rusted MS cover all as directed.

Demolition of cement concret in ground floor nexc 15 cm thickness complete all as specified and directed byEngineer-in-Charge.

S & F in repair PP-R Gate valves (brass insert) as per requirement of 20 mm bore complete all as specified and directed.

All as per item no 40.00 here in before but of size 25 mm dia

All as per item no 40.00 here in before but of size 40 mm dia

All as per item no 40.00 here in before but of size 50 mm dia

All as per item no 40.00 here in before but of size 75 mm dia

All as per item no 40.00 here in before but of size 90 mm dia

M&L for Construction of brick masonry valve pit of internal dimension 90 cm x 90 cm x 90 cm depth with sub class 'B' bricks in CM (1:4) and 10 mm thick plastering in CM (1:4), PCC (1:4:8) type D2 (Using 40 mm graded broken stone aggregate) as in foundation lean concrete, PCC (1:3:6) type CI (using 20 mm graded broken stone aggregate) as in bedding and copping MS frame with 40 x 40 x 6 mm angle iron 3 mm thick MS sheet cover plate with locking arrangements, hinges and two coats of synthetic enamel paint over one coat of red oxide primer including preparation of surface, three coats of white wash on plastered surface (exposed to view) including necessary excavation in soft loose, soil, returning filling in and removal of surplus soil to a distance not exceeding 50 m complete all as specified and directed.

All as per item No 46.00 here-in-before but valve pit of size 60 x 60 x 60 cm.

Supply only Alum ferric Grade -4 Best quality as per sample with additional requirement for purification of water containing lead (as Pb) 30 PPM Max and arsenic (As 203) 6PPM Max confirming revised 15299:2012 complete all as specified and directed.

Labour only for attending major water supply breakdown complaints including pipe line breakdown,Sluice valve/Gate valve, Necessary road cutting, excavation & also removing of unwanted vegetation grown in service tank complete all as specified and directed.

M&L for cement concrete (1:3:6) type C1, using 20mm graded crushed stone aggregate as in copings, kneelers etc and the like including weathering, slightly rounded, chamfered angle and throating as directed including use and waste of form work (straight or curved) all exposed surface of concrete finished fair and even complete all as specified.

Boring mechanically or manually in any type of soil of bore size 100mm to 25mm complete all as specified and directed.

Demolition of cement concrete (un-reinforced) in ground floors and paving not exc. 15cm thickness (below or above ground level) complete all as specified and directed.

M&L for 75mm thick plain cement concrete (1:3:6) type C2 using 40mm graded aggregates as in foot path/hard standing including finishing surfaces even and smooth without using extra cement complete all as specified and directed.

Supply and fix in repairs Gun metal, globe or gate valves of 20 mm dia complete all as specified and directed.

S & F in repair PP-R fitting (brass insert threaded type) of size 90 mm dia for fixing with existing GI /PP-R pipe line all as specified and as directed for the follwing fittings:-

(a) Elbow

(b) Flange

(d ) Reducing socket 90mmX75mm

(e) Socket

S & F in repair PP-R fitting (brass insert threaded type) of size 75 mm dia for fixing with existing GI /PP-R pipe line all as specified and as directed for the follwing fittings:-

(a) Elbow

(b) Flange

(d ) Reducing socket 75mmX50mm

(e) Socket

S & F in repair PP-R fitting (brass insert threaded type) of size 50 mm dia for fixing with existing GI /PP-R pipe line all as specified and as directed for the follwing fittings:-

(a) Elbow

(b) Union

(d ) Reducing socket 50mmX40mm

(e) Sockets

(f) Sockets male 50mmx40mm

(g) Sockets female 50mmx40mm

S & F in repair PP-R fitting (brass insert threaded type) of size 40 mm dia for fixing with existing GI /PP-R pipe line all as specified and as directed for the follwing fittings:-

(a) Elbow

(b) Union

(d ) Reducing socket 40mmX25mm

(e) Sockets

(f) Sockets male 40mmx25mm

(g) Sockets female 40mmx25mm

S & F in repair PP-R fitting (brass insert threaded type) of size 25 mm dia for fixing with existing GI /PP-R pipe line all as specified and as directed for the follwing fittings:-

(a) Elbow

(b) Union

(d ) Reducing socket 25mmX25mm

(e) Sockets

(f) Sockets male 25mmx20mm

(g) Sockets female 25mmx20mm

Painting to MS Steel sheet with frame with one coat red oxide paint and two coats of synthetic enamel paints of approval colour including necessary preparation of MS steel sheet with frame by means of scraping, brushing, cleaning etc.

M/s Beekey Seekey Traders

M/s Rawat Enterprises

Ms Sukumar Talukdar and Co.