SPL REPAIRS TO CI/DI/GI PIPELINE AT BI-5 TO PUMP HOUSE NO.4, SHIV MANDIR MD ACCN AREA, PUMP HOUSE NO.3 AND SPL REPAIRS TO PIPE LINE AT CQB MD ACCN AREA AT BARRACKPORE UNDER GE BARRACKPORE

Amount

Excavation in trenches in soft/loose soil not exceeding 1.5 mtr wide and not exceeding 1.5 meter in depth not exceeding 10 Sqm on plan and not exceeding 1.5 m in depth and getting out for taking out / laying of GI/CI/DI pipe lines and making bottom surface levelled to a gradient complete all as specified and directed.

Removing surplus excavated materials to a distance not exceeding 50m and depositing where directed at a level not exceeding 1.5m above the starting points in soft/loose soil complete all as specified and directed.

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

Cutting and screwing the existing 40/50mm bore GI steel tubing for alteration or additions in position without taking down/up pipe complete all as specified and directed.

S&F for 50mm dia GI tubings (medium grade) with all fittings laid in trenches after and including taking up/down old steel tubing and connection complete all as specified and as directed. (Note : Excavation, returning filling and removing of earth shall be measured and paid separately)

All as per Item No 5.00 here-in-before but 40mm dia complete all as specified and directed

All as per Item No 5.00 here-in-before but 25mm dia complete all as specified and directed

All as per Item No 5.00 here-in-before but 20mm dia complete all as specified and directed

S&F for 15 mm dia GI tubes (medium grade) galvanised, with all fittings and fixed complete to walls and ceilings or laid in floors, wall etc after and including taking up or down existing steel tubing complete all as specified and directed.

S&F for gunmetal gate valves with iron wheel head, screwed both ends for iron pipes after and including taking down/up old unserviceable gate valve of following sizes complete all as specified and directed:-

Gate Valve of 50mm dia

Gate Valve of 40mm dia

Gate Valve of 25mm dia

Gate Valve of 20mm dia

Supply, laying and testing of centrifugally cast (Spun), ductile iron pressure pipes of size 100mm bore with spigot and socket ends, Class K-7 conforming to IS: 8329/2000 and amendment No.1 suitable for (push- on) rubber gasket, jointing with inside cement mortar lining and outside zinc coating with finishing layer of black bitumen/blue epoxy coating duly ISI marked, in any length, laid in trenches/ on surface/ over masonry pillar and connection to old or new position of including push on rubber (EPDM) ring complete after and including taking out old cast iron / ductile iron pipe of any type and class (including all fittings) complete all as specified and directed. (Note: (i) Rubber ring/gasket joint, jointing materials, etc required for jointing of DI pipes shall deemed to be included in unit rate. (ii) Excavation and earth work shall be measured and paid separately).

Supply, laying and testing of centrifugally cast (Spun), ductile iron pressure pipes of size 150mm bore with spigot and socket ends, Class K-7 conforming to IS: 8329/2000 and amendment No.1 suitable for (push- on) rubber gasket, jointing with inside cement mortar lining and outside zinc coating with finishing layer of black bitumen/blue epoxy coating duly ISI marked, in any length, laid in trenches/ on surface/ over masonry pillar and connection to old or new position of including push on rubber (EPDM) ring complete after and including taking out old cast iron / ductile iron pipe of any type and class complete all as specified and directed. (Note: (i) Rubber ring/gasket joint, jointing materials, etc required for jointing of DI pipes shall deemed to be included in unit rate. (ii) Excavation and earth work shall be measured and paid separately).

M&L for ductile iron specials any type spigot and socket ends pipe as required at site (such as bend, taper, Tee, socket etc) as ordered of size up to 150mm bore as in repair complete all as specified and directed.

M&L for CI specials any type spigot and socket ends pipe as required at site (such as bend, taper, Tee, socket etc) socket end/ flanged as ordered of size up to 150mm bore as in repair complete all as specified and directed.

S&F for sluice valve, both end flanged with CI operating wheel, brass spindle etc as per latest IS specification, Class PN - 1.6 including necessary jointing and jointing materials such as gasket, nuts, bolts, washer etc after and including taking up old unserviceable sluice valve of following size complete all as specified and directed:-

Sluice valve of 150mm dia

Sluice valve of 100mm dia

Construction of valve pit chamber with brick masonary with sub class 'B' bricks (one brick thick) in cement mortar (1:6) and necessary PCC (100 mm thick) type D2 (1:4:8) as in foundation and 15mm thick plastering on brick work in cement mortar (1:4) including necessary earthwork etc work having internal dimension 60cm x 60cm x 60cm and providing of 3mm thick MS sheet cover duly hinged on 40mm x 40mm x 6mm angle iron frame and embedded on top of chamber by minimum 4 Nos MS hold fast. Necessary locking arrangement shall be provided to the sheet cover for safety. The steel surfaces shall be painted with two coats black bituminous paint over a coat of anti corrosive red oxide primer after and including demolition of old valve pit chamber complete all as specified and directed.

Construction of valve pit chamber with brick masonary with sub class 'B' bricks (one brick thick) in cement mortar (1:6) and necessary PCC (100 mm thick) type D2 (1:4:8) as in foundation and 15mm thick plastering on brick work in cement mortar (1:4) including necessary earthwork etc work having internal dimension 90cm x 90cm x 90cm and providing of 3mm thick MS sheet cover duly hinged on 40mm x 40mm x 6mm angle iron frame and embedded on top of chamber by minimum 4 Nos MS hold fast. Necessary locking arrangement shall be provided to the sheet cover for safety. The steel surfaces shall be painted with two coats black bituminous paint over a coat of anti corrosive red oxide primer after and including demolition of old valve pit chamber complete all as specified and directed.

Construction of valve pit chamber with brick masonary with sub class 'B' bricks (one brick thick) in cement mortar (1:6) and necessary PCC (100 mm thick) type D2 (1:4:8) as in foundation and 15mm thick plastering on brick work in cement mortar (1:4) including necessary earthwork etc work having internal dimension 120cm x 120cm x 120cm and providing of 3mm thick MS sheet cover duly hinged on 40mm x 40mm x 6mm angle iron frame and embedded on top of chamber by minimum 4 Nos MS hold fast. Necessary locking arrangement shall be provided to the sheet cover for safety. The steel surfaces shall be painted with two coats black bituminous paint over a coat of anti corrosive red oxide primer after and including demolition of old valve pit chamber complete all as specified and directed.

MAZUMDER AND CO

NANDY ENTERPRISE

M/s B B Enterprise

TAMALIKA ENTERPRISE

B.N. SADHUKHAN

ABHISHEK CONSTRUCTION CO

BANERJEE ENTERPRISE