SPL REPAIR / REPLACEMENT OF OLD HDPE PIPE LINE FROM STP ANARWALA TO GOLF GROUND UNDER AGE E/M-I IN GE DEHRADUN

DESCRIPTION OF ITEMS

M&L for excavation in trenches in any type of soil not exceeding 1.5 Meter wide and not exceeding 1.5 Meter deep in any type of soil including cutting in slopes etc for laying of pipe line including getting out, complete all as specified and directed.

M&L for returning, filling in, including spreading, leveling, watering and well ramming in layers in soft / loose soil not exceeding 25 cm in each layer complete all as specified and directed by Engineer-in-Charge.

Cutting the existing hard standing/road of facilitate for laying of water pipe line of any type any size and making good the disturbed portion to bring it to original condition with plain cement concrete 1:4:8 type D2 (using 40mm graded stone aggregate). Note : Removal of debris obtained from excavation to a distance up to 50 Meter from starting point and depositing where directed at level not exceeding 1.5 Meter is included in the quoted rates.

Dismantling and taking out the existing old / scaled HDPE pipe with fittings connections from trenches, walls, ceiling or floor and removal from site or disposed off for the following sizes complete all as specifed and directed.

Supply and lay pipe ductile Iron , S/S including specials, Class “K-7” ,100 mm (4”) dia, including all the accessories such as unions, sockets, tees complete all as specified and directed.

M & L for DI fitting for spigot & socket end 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 and mechanical joints any type etc upto 150 mm bore including removing/ dismantling of old dI fittings complete all as specified and directed.

Supply and fixing in replacement CI sluice valve suitable for 100mm (4'') DI pipe with non rising spindle both end flanged dully drilled for both ends with stainless steel spindle (Non rising spindle) as IS-14846/2000, PN1.6 with hand wheel, ISI marked of following sizes and taking down the old unserviceable

Cutting of cast iron pipe mains 150 mm bore for insertion of tees, collars, sluice valves, etc including dewatering work required for working water pipe lines complete all as specified and directed.

Dismantle the broken valve chamber of size 90x90x90 cm to 110x110x110 cm and construct of new brick masonry valve pit of internal size 90x90x90 cm to 110x110x110cm with 230mm thick brick wall built in cement mortar plain cement concrete 1:3:6 and base surface area of valve chamber shall also built in cement mortar PCC 1:3:6 with adequate plastering and plastering 15mm wall sides in cement mortar 1:4 and the pit covered with MS chequred sheet 3 mm thick duly fixed to MS angle iron of size 40x40x3mm and duly embedded in plain cement concrete coping 5 cm thick plain cement concrete 1:2:4mm type B1with opening and locking arrangements including painting with two coat of synthetic enamel paint over one coat of primer complete all as directed.