SPECIAL REPAIR TO DI/CI PIPE LINE AT L AREA AT AFS DIGARU (2ND CALL)

Amount

SCHEDULE 'A' PART-I (B/R PORTION)

Taking up/out CI/DI/GI water mains of any sizes including all fittings with spigot and socketed ends/flanged ends including burning out lead joints or dismantling flanged joints including valve complete all as specified and directed.

Supply and fixing Ductile Iron Pipes of size 100 mm dia with Spigot & Socket end, Class K-9 conforming to IS: 8329/2000 suitable for (push-on) rubber gasket jointing with centrifugally applied inside cement mortar lining with Portland Slag Cement and external Metallic Zinc Coating with a finishing layer of Epoxy Resin(Blue Epoxy) coating on external surfaces. The standard lengths of the pipes are 5.5 and 6.00 meter. Note: - 1. DI fittings shall be measured and paid seprately under resptctive items. 2. Earth work will be measured and paid for separately. 3. Rubber ring push on joints shall be deemed to be included in the unit rate quoted against this item.

S & F sluice valve of 100mm bore, PN 1.6 (conforms to IS:14846) with brass spindle, fixed on the DI pipe line through leather gasket of suitable thickness and nut, bolt & washer of suitable sizes all as specified and directed. (Make-Kirloskar/L&T (Audco)/Upadhyay.

Supply and fix cast iron air release valves with single air outlets conformimg to IS 14845 of Size 100mm dia including all fittings complete all as specified and as directed.

M & L for ductile iron special class K-12 conforming to IS:9523/2000 any type & angle/socket & spigot/flange ends and dia upto 150 mm bore and straight connecting pieces all as specified and directed.

Construction of brick masonry (full brick thick wall) valve chamber, of 1050x1050x950mm size of internal diomension, PCC work with (1:4:8) type D2; 150mm thick (using 40mm grade stone aggregate) for foundation complete with 3.00mm thick MS sheet cover and frame of MS angle iron 40x40x5mm with locking arrangement and painting with one coat of red oxide primer and two coats of synthetic enamel paint all as specified shall be plastering to internal and exposed surfaces of the chamber, in CM(1:4) 15mm thick and PCC coping (1:2:4) type B-1, 50mm thick all as specified.

Boring of holes under road, pavement hard standing by trenchless technology using ultra sounding technique and necessary machine including HDPE pipe of 150 mm dia suitable for 0.4 map working pressure.

Excavation in trenches not exeeding 1.5m wide and not exceeding 1.5m depth for laying ductile iron pressure pipes in trench/foundation and getting out in soft/loose soil all as specified and directed.

Returning filling in trenches, including spreading, levelling, watering and well ramming in layers not exceeding 25 cm complete all as directed. (Note: Surplus soil shall not be removed but left protrude over the trench).

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

M/s Ravi Enterprise