REPAIR MAINT OF EXTERNAL WATER SUPPLY AND ALLIED WORKS UNDER GE I P FY AVADI

Amount

Materials and labour for construction of brick masonry valve pit of internal dimension 60 x 60 x 60 cm depth with sub class new '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 4 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 50/40 mm dia gate valve complete all as specified and and directed by Engr-in-charge.

Materials and labour for construction of brick masonry valve pit of internal dimension 90 x 90 x 90 cm depth with sub class new 'B' bricks in CM (1:4) and 100 mm thick plastering in CM (1:4), PCC (1:4:8) type D2 (Using 100 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 50 x 50 x 6 mm angle iron 4 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 80 mm dia gate valve complete all as specified and and directed by Engr-in-charge..

Materials and labour for replacement of PVC pipe of 25 mm bore into GI medium grade 25 mm bore pipe from the bottom of the outlet garden post (near conference hull) to the garden post near E1 Section (approx 18 RM), including horizontal boring (upto a depth of 0.50 mtr) to the footpath (approx 2.5 RM) between two verandah of GE(I)(P)FY, Avadi, complete including replacement of reducer of size 25 x 15 mm, butterfly valve with one handle 15 mm and nipple of 15 mm (15 Cm long). Note : - (i) Necessary PCC coping of size 30 cm x 30 cm x 40 cm for protection of the garden post is deemed to be included in the quoted rate. (ii) Earth work required is deemed to be included in the quoted rate.

Materials and labour for replacement of 40 mm NRV (01 No) and providing two Nos gate valve of 40 mm (one for delivery and one for wash out), one no nipple of size 40 mm (15 cm long and one no equal Tee of size 40mm, incuding replacement of 3RM PVC pipe of 25 mm bore into GI medium grade pipe of 25 mm bore and the PVC reducer into GI reducer elbow of size 40 mm x 25 mm at the delivery line of the borewell installed at GE(I)(P)FY, Avadi office complex complete all as specified and directed.

Materials and labour for cutting, threading to the existing GI delivery line of the borewell installed at DGQA Guest House and providing a GI equal Tee of size 50 mm x 50 mm x 50 mm,gate valve of 50 mm and a GI nipple of 50 mm (15 cm long) complete for the wash out of the bore water before pumping to the service tank complete all as specified and directed.

Taking out old unserviceable galvanised iron pipe any grade with all fittings/controls all as directed for following size:-

50 mm dia of bore

40 mm dia of bore

25 mm dia of bore

20 mm dia of bore

M&L for pipe Galvanised iron pipe medium grade ISI marked with all fittings such as sockets, flanged, tee, elbow, reducer, bends etc as per site , laid in trenches/ fixed with surface of wall/ roof etc complete complete all as specified and direcetd by Engr-in-charge for following size:-

50 mm dia of bore

40 mm dia of bore

25 mm dia of bore

20 mm dia of bore

M&L for gun matel gate or globe valves with iron wheel head screwed both ends for GI pipe and fixed, ISI marked complete for following sizes.

50 mm dia

40 mm dia

25 mm Dia

20 mm Dia

Excavating in trenches , n. exc. 1.5 mtrs wide and n. exc. 1.5 mtrs in depth for pipe laying in soft/ loose soil n.exc 10 sqm on plan and n.exc 1.5 m in depth and getting out all as per directed.

Returing, filling, including spreading, levelling, watering and well ramming in hard/ dense soil in layers not exc 25 cm all as per directed.

Removing excavated materiel n.exc. 50 Mtrs and depositing where directed at a level n. exc. 1.5 mtrs above the strarting point in soil all as per directed.

Excavating/ cutting the hard standing / path/road etc in trenches , n. exc. 1.5 mtrs wide and n. exc. 1.5 mtrs in depth for laying the GI pipes any size and getting complete all as per specified and directed.

M&L for cement concrete type C 2 in ratio (1:3:6) using 40 mm graded aggregate for repairing of path/ road/ hard standing etc. complete as per specified and directed.

Supply and fix in repairs of Ball valves high pressure of PTMT with epoxy coated Aluminium rod & highdensity plastic ball screwed for iron pipe of following sixes:-

20 mm dia (Minimum weight 210gms)

25 mm dia (Minimum weight 455gms)

Labour only for servicing of AQUA fresh RO, Filter, cum purifier (50 LPH) complete after dismentling of old unserviceable spares and replacement the same with new one all as directed. Note : - Spares will be measured under respective itmes here in below.

Supply only following spares for replacement of AQUA fresh RO, Filter, cum purifier (50 LPH) :-

RO pump with smps

20” gac filter

20” cto filter

20” spun filter

10” post corbon filter

Membrane

¼ " white PVC tube

3/8" white PVC tube

Banyan Engineers and Contractors

R K ARUMUGAM

Sri SRM Construction

SJM CONSTRUCTIONS