REPAIR AND MAINTENANCE OF CI, DI, GI PIPE LINES AND OTHER EXTERNAL WATER SUPPLY SERVICES AT AFS HAKIMPET UNDER GE(AF) HAKIMPET

Amount

Excavation in trenches not exc 1.5 wide and not exc 1.5 mtr deep and getting out in hard /dense soil for laying pipes complete all as specified .

Returning and filling in soils , including spreading ,levelling ,watering and well ramming in layers not exc 25 cm thick complete all as specified and directed .

Removal of excavated material to a distance not exc 50 mtr away from starting point and depositing where directed at a level not exc 1.5 mtr above the starting point complete all as specified and directed .

Material and labour for cutting of road / hard standing not exc . 1.5 mtr wide and not exc. 1.5 mtr deep upto 45 cm wide for laying and taking out water pipe line including making good the disturbed portion as per existing earlier complete all as specified and directed .

Supply and laying in replacement of DI pipe spigot and socket ends class 'K-7'suitable in replacement of CI Pipes for tyton joint or any length properly laid in trenches all as specified and directed by Engr-In-Charge of following sizes:- Make - Srikalahasti/Electrosteel/Kesoram/TISCO Note:- Lead joint and Tyton joint will be measured and paid seperately under respective items of sch.

(a) 300mm dia pipe

(b) 200mm dia pipe

© 150mm dia pipe

(d) 100mm dia pipe

Labour only for taking out sluice valve any make and size including re- facing , replacement of check nuts , spindles , re- grinding of shutter and re - fixing the same including providing rubber insertion sheet , gland packing rope , nuts , bolts and washers etc to make the sluice valve leak proof and free. operational all as specified and directed for the following sizes . Note -1 :- Spindle and check nut will be measured and paid seperately. Note -2 :- Rate of rubber insertion sheet,nut,bolts,washers etc will deemed to be included in the item.

(a) 80 mm dia

(b) 100 mm dia

(c) 150 mm dia

(d) 200 mm dia

Supply and fix in repair CI sluice valve flanged of class PN 1.6 conforming to IS - 780 complete with iron wheel head , stainless steel spindle and check nut , including jointing material such as rubber insertion nut bolts washers etc complete ,of following size : Make - Kirloskar/Kartar/Leader

(a ) 80 mm dia pipe

(b ) 100 mm dia pipe

(c) 150 mm dia pipe

(d ) 200 mm dia pipe

(e) 300 mm dia pipe

Material and Labour for fixing Sluice Valve spindle with check nut (High tension Brass) of PN 1.6 for the following sizes:-

(a) 150mm dia

(b) 100mm dia

(c) 80mm dia

Taking down UNSV NRV of any description and Supply and fix CI Non - Return Valves PN 1.6, ISI marked , heavy duty , flanged type complete all as specified and directed for the following sizes. Make - Kirloskar/Kartar/Leader

(a ) 50 mm dia pipe

(b ) 80 mm dia pipe

(c ) 100 mm dia pipe

(d) 150mm dia pipe

Supply and fix in repair Air Release Valve PN 1.6 with double chamber conforming to IS - 14845 including all connecting items etc complete,of following size : Make - Durga/Venus/Leader/Kirloskar

(a) 150mm dia

(b) 100mm dia

(c) 80mm dia

Taking down UNSV Foot Valve of any description and Supply and fix Foot valves ISI marked of cast iron with brass diaphragm heavy duty screwing type complete of the following sizes .Make-Kirloskar/Kartar/Leader

(a) 80 mm dia pipe

(b) 100 mm dia pipe

(c) 150 mm dia pipe

Material and labour caulking to the existing run lead joint complete to make it leak proof including lead wool all as specified and directed for the following sizes . Note : - Earth work and excavation will be measured and paid separately.

(a) 80 mm dia pipe

(b) 100 mm dia pipe

(c) 150 mm dia pipe

(d) 200 mm dia pipe

Material and Labour for run lead joints complete including jointing material such as spun yarn, pig lead all as specified for the CI pipe of following sizes all as specified and directed.

(a) 300 mm dia

(b) 200mm dia

(c) 150mm dia

(d) 100mm dia

M&L Rubber gasket Joint (Tyton Joint) suitable for DI/CI pipe of following sizes all as specified and directed.

(a) 150mm dia pipe

(b) 100mm dia pipe

Supply and fix CI fitting for spigot socketed pipe 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 , of size - up to 150 mm dia all as specified and directed.

Cutting of DI/CI/GI mains in position for insertion of new tees, tail pieces , sluice valve etc for following sizes all as specified and directed.

(a) 200 mm dia pipe

(b) 150 mm dia pipe

(c) 100 mm dia pipe

Labour only steel tubing medium grade 80mm dia pipe complete all as specified and directed. Note : - GI Tubing will be supplied by the department under Schedule-B. Earth work and excavation will be measured and paid separately.

Supply and Lay in repairs for Galvanized Iron water tubing " Medium Grade" with all fittings laid in trenches for following sizes Complete all as specified and directed.Make - Jindal/Tata/Zenith

15 mm dia GI tubing

20 mm dia GI tubing

25 mm dia GI tubing

40mm dia GI tubing

50 mm dia GI tubing

Supply and fix in repair Gun metal globe or gate valve ISI marked high pressure with iron wheel head screwed both ends for iron pipe line and fixed of properly of following sizes .Make - Zoloto/Kartar/Venus

(a) 15 mm dia pipe

(b) 20 mm dia pipe

(c) 25 mm dia pipe

(d) 40 mm dia pipe

(e) 50 mm dia pipe

Repair to valve chamber in PCC coping, cracks of walls to be plastered and making good all as directed. Note:- MS covers sheet including angle frame cleats shall be removed and refixed in position after repairing with one coat of synthetic enamal paint to all steel surfaces.

Demolition of valve chamber of any description and size and removing demolished material to a distance exc 1.5 km and not exc 5 km and depositing where directed.

M & L for construction of valve chamber of following internal sizes with 100 mm thick PCC (1:4:8 ) type D-2 for foundation , brick walls built in cement mortor (1:4 ) , PCC 1:2:4 type B1 for coping , rendering in cement mortor 1:4 , 15 mm thick both internally and externally upto 15 cm below GL including provision of MS sheet cover using angle iron 40 x40 x6 mm as a frame embedded in concrete and 3 mm thick MS sheet as in cover with necessary locking arrangements duly painted with two coats of synthetic enamel paint over a coat of red oxide primer including necessary earth work and excavation complete.

(a) 600x600x600 mm

(b) 750mm x 750mm x 750mm

(c ) 1050mm x 1050mm x 1050mm

Supply only Calcium based Chlorine granuals disinfectant for water treatment in 45 kg plastic drums having concentration of clorine 60% to 70% complete all as specified and directed. Make : All Makes approved by E-in-C Branch.

Supply and laying of 3-layer PP-R Polypropylene random copo-lymer) concealed pipes SDR 7.4 (PN16) UV stabilized and antimicrobial fusion welded having thermal stability for hot & cold water supply all PP-R plain & brass threaded polypropylene random fittings laid in trenches complete all as specified and directed for following sizes

110mm dia

63 mm dia

32 mm dia

Srinivash Engineers

M Shyam Sunder