REPAIRS / MAINTENANCE OF EXTERNAL WATER SUPPLY PIPE LINES AT TECHNICAL AREA AT AF STN SURYALANKA

Amount

Excavation in trenches not exceeding 1.5 m wide and not exceeding 1.5 m in depth and getting out in soft/ loose soil, for under ground electric cable, pipes etc.complete all as specified & directed.

Returning, filling-in, including, spreading, watering and well ramming in layers not exceeding 25 cm thick each, in soft /loose soil complete all as specified & directed.

Removing excavated surplus soil to a distance not exceeding 50 m and depositing where directed at a level not exceeding 1.5 m above the starting point complete all as specified & directed.

M&L in repair for Unplasticized PVC 25 mm pipes of pressure rating 10 kgf/Sq.Cm fixed complete to walls, ceilings or in floors etc., existing pipe of any type as per site requirement complete all as specified and as directed.

-Do- But 32 mm

M&L in repair for Unplasticized PVC 40 mm pipes of pressure rating 10 kgf/Sq.cm laid in trenches as per site requirement complete all as specified and as directed.

-Do- But 50 mm

-Do- But 63 mm

-Do- But 90 mm

-Do- But 110 mm

S&F in repair 110mm outer dia, ISI marked 3-layer PP-R polypropylene random copolymer pipes SDR 7.4 (PN-16) UV stabilized and antimicrobial welded having thermal stability for hot & cold water supply including all PP-R plain & brass threaded polypropylene random fittings laid in trenches or floors etc., including taking up existing unserviceable pipes of any type complete all as specified and as directed.

-Do- But 90 mm

-Do- But 75 mm

-Do- But 63 mm

S&F in repair 32mm outer dia, ISI marked 3-layer PP-R polypropylene random copolymer pipes SDR 7.4 (PN-16) UV stabilized and antimicrobial welded having thermal stability for hot & cold water supply including all PP-R plain & brass threaded polypropylene random fittings fixed complete to walls, ceilings or in floors etc. including taking up existing unserviceable pipes of any type complete all as specified and as directed.

-Do- But 25 mm

S&L in repair Ductile Iron pipes 100 mm dia with spigot and socketed ends class k-9 in any length with internal cement motar lining and external zinc and bitumen coated confirming to IS:8239-2000 including push on rubber gasket joints and laid in trenches as per IS 12288 complete all as specified and as directed. Make: Tata Metaliks/ Jindal/ Electrosteel / Srikalahasthi

M&L for making suitable hole in Existing 150/100mm DI/CI pipe and fixing of Iron D Clamps with any ferrule size for tapping, including disconnecting the existing PVC/PPR/GI tapping pipe from PVC 110mm main pipe line by closing the old tapping with PVC dummy and reconnecting to ferrule with necessary accessories, fittings, Gaskets etc, excavation and refilling complete all as specified and directed. Note: Supply of D Clamp with Ferrule is measured under relevant item.

Supply of iron D Clamp made out of MS flat not less than 50mm width not less than 5 mm thick, suitable size for 100mm DI pipe, 25 mm GI socket welded to D clamp with necessary gaskets, nuts and Bolts for connection, including two coat of red oxide paint complete all as specified and directed.

S & F in repair Sluice valve 100mm dia, Class PN 1.6 complete set as per site requirement complete all as specified and as directed.

S & F in repair UPVC ball valve of size 50mm dia, 2 Inch long complete all as specified and as directed.

M&L in repair for Construction of valve chamber of size 1200 x 1200 x 1000 mm (internal dimension) suitable for 150/100 mm sluice valve, PCC 1:4:8 type D2 using 40 mm graded stone aggregate as in foundation, brick wall with sub class 'B ' bricks built in CM 1:4, PCC 1:2:4 type B1 using 20 mm graded stone aggregate for coping, plastering in CM 1:4,15 mm thick including provision of MS sheet cover 4 mm thick with two coat of synthetic enamel paint over a coat of red oxide primer to steel surfaces and locking arrangement including excavation earth work in any type of soil, returning in filling and removing the surplus soil complete all as specified & directed.

PAVANI INFRAS

DHANA CONSTRUCTIONS

K VENUGOPALA SWAMY