ADDITION AND ALTERATION TO SEWAGE TREATMENT PLANT AT AFS BEGUMPET UNDER GE AF HAKIMPET

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

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

Supply and spreading clean, fine, dry river sand in trenches for cushioning of under ground cable / inside transformer yard complete all as specified and directed by Engineer-in-Charge. Note: Only rammed thickness shall be measured for payment purpose.

Material and labour for brick sub class 'B' to be laid in trenches as protection to cable 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 starting point complete all as specified and as directed.

Material and labour for cutting road/hard standing not exc. 0.60 mtr wide and not exc. 0.25 mtr deep for laying and taking out water pipe line including making good the disturbed portion as per existing earlier complete all as specified and as directed.

Supply and fix Bib taps, cast copper alloy with crutch or butterfly handle, screwed down, screwed for iron pipe or for brass ferrule chromium plated 20 mm dia as specified and directed by Engineer in charge

Supply, laying, jointing, and testing of 50 mm HDPE pipes of pressure 6kgf/sqcm for underground irrigation, including installation of branch connections at specified points for mounting rotary/adjustable sprinklers with threaded or compression adaptors. The work shall ensure leak-proof joints, proper alignment, and support for sprinkler risers. All work shall conform to standard specifications for HDPE pipe installation, including pressure testing at 1.5 times operating pressure and placement of warning tapes above the pipe for identification

Construction of valve chamber having inner dimension 600 x 600 x 600 mm (suitable for gate valve upto 50mm) with PCC 1:4:8 type D2 for foundation, brick work wall in cement mortar (1:4), PCC 1:2:4 type B1 for coping, rendering plaster in CM 1:4, 15 mm thick including provision of MS Sheet top cover 3 mm thick with brazing of MS flat of size 25 mm x 4 mm at edges and in diagonal and angle iron base frame of 40 x 40 x 5 mm, painting with two coat of synthetic enamel paint over a coat of red oxide primer on iron surfaces, lime wash on internal and external cement surfaces and locking arrangements including demolition of the existing chamber, necessary excavation earth work complete all as specified.

M&L for PP-R gate valves (brass insert) of size 50 mm outer dia including taking down existing gate valve of any description complete all as specified and as directed by Engineer-in-charge.