REPAIR/ MAINTENANCE OF WATER SUPPLY DISTRIBUTION SYSTEM AND MISC WORKS AT DOMESTIC AREA AT AFS KUMBHIRGRAM.

Amount

Excavation in trenches not exc. 1.5 Mtr wide and not exc 1.50 Mtr in depth for foundation etc. and getting out in soft/loose soil complete all as specified and as directed.

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

Removing excavated soils to a distance not exc 50 Mtr and depositing where directed at a level not exceeding 1.5 Mtr above the starting point complete all as specified and as directed.

Taking out existing 15mm bore galvanized steel tubing and connections from trenches / walls / floors, keeping aside serviceable pipe for reuse and removing unserviceable pipe complete all as specified and as directed.

All as per item No 4. here in before but 20 MM bore tubing.

All as per item No 4. here in before but 25 MM bore tubing.

All as per item No 4. here in before but 40 MM bore tubing.

All as per item No 4. here in before but 50 MM bore tubing.

All as per item No 4. here in before but 80 MM bore tubing.

All as per item No 4. here in before but 100 MM bore tubing.

All as per item No 4. here in before but 150 MM bore tubing.

Supply, laying, jointing and testing of 15 MM bore galvanized steel water tubing, medium grade, with all necessary fittings, laid in trenches or fixed to wall with suitable clamps complete all as specified and directed.

All as per item No 12. here in before but 20 MM bore tubing.

All as per item No 12. here in before but 25 MM bore tubing.

All as per item No 12. here in before but 40 MM bore tubing.

All as per item No 12. here in before but 50 MM bore tubing.

All as per item No 12. here in before but 80 MM bore tubing.

All as per item No 12. here in before but 100 MM bore tubing.

All as per item No 12. here in before but 150 MM bore tubing.

Taking out gun metal gate valve size 20, 25, 40, 50 mm existing connection in trenches / walls / floors complete all as specified and as directed.

Supply and fix in repair gun metal gate valve class 2 heavy duty conforming to IS-778 with iron wheel head, screwed both ends for iron pipe, 20 MM bore complete all as specified and directed. Note: The quoted rate shall deemed to be inclusive of cutting and necessary fittings required for the pipe.

All as per item No 18. here in before but 25 MM bore tubing.

All as per item No 18. here in before but 40 MM bore tubing.

All as per item No 18. here in before but 50 MM bore tubing.

Taking down old unserviceable sluice valve 80/100mm

Supply and fixing sluice valve with flanged ends cast iron body, flanged and drilled end non rising type MS spindle with check nuts, as per IS: 14846 ISI marked including all joints, class PN-1.6, 80 mm bore complete with nuts bolts gaskets complete all as specified and directed

Supply and fixing sluice valve with flanged ends cast iron body, flanged and drilled end non rising type MS spindle with check nuts, as per IS: 14846 ISI marked including all joints, class PN-1.6, 100 mm bore complete with nuts bolts gaskets complete all as specified and directed.

Taking down old unserviceable gun metal foot valve with strainer 50mm.

Supply and fix in repair gun metal foot valve with strainer for 50 MM dia from semi UG sump for tech area at ATC pump house/110 HU Pump House, 15 feet depth including required all tools and plant complete all as specified and directed.

Taking down old unserviceable CI foot valve 100mm flange type.

Supply and fix in repair CI foot valve with strainer for 100 MM dia complete all as specified and directed.

Supply and fix in repair flat rubber gasket 6-10mm thickness complete all as specified and directed.

Material and labour for Boring of holes under road, pavement, hard standing, by trenchless technology using ultra sounding technique and necessary machine including GI pipe (Heavy Grade) of 150 mm dia suitable for 0.4 mpa working pressure complete all as specified and as directed.

Material and labour for construction of brick masonnary valve pit chamber 900 x 900 x 900mm with 15 cm thick foundation using PCC 1:4:8, type D-2, over 15cm thick hard core, 23 cm thick brick wall built in cement and sand mortor (1:4), 15mm thick internal plaster including top, 2mm thick MS sheet cover with 40mm x 40mm x6mm MS angle iron frame layed in PCC 1:2:4, type B-1, using (20mm graded stone aggregate) with 25mm x 6mm flat iron hold fast with handle and locking arrangement including necessary earth work and excavation , returning filling in soil and disposal of surplus soil at a distance of not exc 50m and painting of all metal part blue color alongwith 1 No lock 50mm complete all as specified and directed.

Material and labour for brick work with sub class 'B' bricks straight or curved on plan exc 6 Mtr mean radius built in cement mortar (1:6), complete all as specified and directed.

Material and labour for rendering 10 MM thick in cement mortar (1:4) on fair faces of brick work or concrete surfaces, finished even and smooth without using extra cement complete all as specified and as directed.

Material and labour two coats of white wash including prepatory work on walls, valve chamber inside and outside complete all as specified and directed.

M/S NIRANJAN ROY (BID ID -3292412)

M/S PIJUSH BHATTACHARJEE (BID ID -3290331)

M/S R A ENTERPRISE (BID ID -3293675)