Valve Xxxxxxxx. All valve xxxxxxxx shall be constructed according to the standard chamber drawings enclosed with the bid document. Brick masonry Xxxxxxxx shall be plastered internally and externally with cement mortar (1:4) 20mm thick with water proof compound and RCC xxxxxxxx shall have form finish with fine rendering. RCC xxxxxxxx shall be of M20 concrete. No plaster is required, unless otherwise directed by the Employer’s Representative. Each valve chamber shall be considered as a composite item and they measured in numbers. Anchor bolts shall be of MS as per specification and drawing. Lifting Hooks Lifting hook shall be of MS as per specification and drawing. Ladders with MS Rungs The rung shall be of MS rod as per specification and drawing. The exposed surface shall be painted with primer. This item shall be read in conjunction to Standard Specification. Scope This work shall consist of removing & dismantling worn out pipes, valves, specials etc. and which are in place but interfere with the new construction or are not suitable to remain in place, and of salvaging and disposing/carrying of the pipes, pipe fittings, valves, and back filling the resulting trenches and pits. Dismantling and removal operations of worn out pipes or other obstacles coming in the execution of the work shall be carried out with such equipment and in such a manner as to leave undisturbed any other work to be left in place. Dismantling/demolishing of valve chamber, thrust block etc., stacking of useful material and disposal of surplus material/debris/rubbish. All operations necessary for the removal of any existing worn out pipes, fittings and valves which might endanger new construction shall be completed prior to the start of new work. This item shall be executed as per direction of the Employer’s Representative. Terminology The term ‘Dismantling’ implies carefully separating the parts without damage and removing. This may consist of dismantling one or more parts of the pipe works as specified. The term ‘Demolition’ implies breaking up. This shall consist of demolishing whole or part of work including all relevant items as specified. Dismantling of Cement concrete, RCC, Brick work in mortar in cum within 50m lead. Dismantling & stacking of pipes valves, steel items and other useful items (serviceable) to GMDA Store as directed by Employer’s Representative. Dismantling of RCC pipes and stacking within a lead of 50m. Disposal of building/construction rubbish by mechanical transport up ...
Valve Xxxxxxxx. The Concessionaire shall provide suitable brick masonry xxxxxxxx in cement mortar 1:5 (1 cement: 5 coarse sand) on cement concrete foundations 150 mm thick 1:4:8 mix (1 cement: 4 fine sand: 8 graded stone aggregate 40 mm nominal size) 15 mm thick cement plaster of 1:4 (1 cement: 4 coarse sand) inside and outside finished with a floating coat at neat cement inside with casts iron surface box approved by fire brigade including excavation, back filling complete. Valve chamber shall be of following size: For depth 90 cms – 60 x 60 cms For depths upto 100 cms beyond– 120x120 cms
21. Testing
a) All pipes, fitting and valves shall be tested by hydrostatic pressure of 7.5 kg/xx.xx. Pressure shall be maintained for a period of at least 120 minutes without any drop in the pressure after fixing at site. A test register shall be maintained and all entries shall be signed and dated by the Concessionaires and the Independent Engineer.
b) In addition to the sectional testing carried out during the construction, the Concessionaire shall test the entire installation after connections to the overhead tanks or pumping system or mains. He shall rectify all leakages and shall replace all defective materials in the system. Any damage done due to carelessness, open or burst pipes or failure of fittings to the building,furniture and fixtures shall be made good.
c) After commissioning of the water supply system, the Concessionaire shall test each valve by closing and opening it a number of times to observe if it is working effectively. New ones shall replace valves, which do not effectively operate, and the same shall be tested as above.
22. Intentionally left blank
Valve Xxxxxxxx. As per relevant subsections of the document.
Valve Xxxxxxxx. 4.1 Construction of RCC and Brick masonry xxxxxxxx for valves* hydrants, flow meters etc. including cost of PCC and RCC work, cost of supply and bending and binding of steel with required shuttering, cost of brick work with plaster from inside and outside, precast slabs and supply and installation of SFRC frame and coves wherever required, including all the miscellaneous items of work, but excluding the supply and installation of pipes and specials, valves etc. The item shall be as per specification, drawing and as directed.
(a) Chamber for Sluice valve TYPE S1 Nos. 1.00
(b) Chamber for Pressure reducing valve/ Flowmeter TYPE P4 Nos. 1.00 Subtotal Item Xx. 0 0 XXXX XXXXXXXXXXX
5.1 Reconstruction of WBM Roads
a) Providing and laying of Granular sub base (GSB), as per specification drawing and as directed m3 22.71
b) Providing , laying .spreading and compacting stone aggregates of specific sizes as per specification and drawing to water bound macadam including spreading in uniform thickness, hand packing, rolling with vibratory roller 8-10 tonnes in stages to proper grade and camber, applying and brooming requisite type of stone screenings & binding material, and completer as per specification drawing and as directed by Employer's Representative. m3 37.85 5.2 Reconstruction of Bituminous Asphalt Roads
a) Prime coat-Providing and applying primer coat with bitumen emulsion on prepared surface of granular base including clearing of road surface and spraying primer at the rate of 0.6kb/sqm using mechanical means including cost of testing of materials at site and laboratory as directed by the department. m2 50.00
b) Providing and laying of Bituminous macadam (BM), as per specification drawing and as directed m3 2.50
c) Providing and applying tack coat with bitumen emulsion using emulsion pressure distributor at the rate of 0.2kg/sqm on the prepared bituminous/granular surface cleaned with mechanical broom including cost of testing of materials at site and laboratory as directed by the department. m2 50.00
d) Premix chip carpet-Providing, laying and rolling of close graded premix chip surfacing of 20 mm thickness composed of 11.2 mm to 0.09 mm (Type A) or 13.2 mm to 0.09 mm (Type B) aggregates either using penetration grade bitumen to required line, grade and level to serve as wearing coarse on previously prepared base including mixing in a suitable plant laying , rolling with smooth wheeled roller 8 -10 Tonne capacity to the required level and grade including car...
Valve Xxxxxxxx. 4.1 Construction of RCC and Brick masonry xxxxxxxx for valves* hydrants, flow meters etc. including cost of PCC and RCC work, cost of supply and bending and binding of steel with required shuttering, cost of brick work with plaster from inside and outside, precast slabs and supply and installation of SFRC frame and coves wherever required, including all the miscellaneous items of work, but excluding the supply and installation of pipes and specials, valves etc. The item shall be as per specification, drawing and as directed.
(a) Chamber for Sluice valve TYPE S1 Nos. 2.00
(b) Chamber for Sluice valve TYPE S2 Nos. 1.00
(c) Chamber for Wash out valve TYPE W2 Nos. 1.00
(d) Chamber for Pressure reducing valve/ Flowmeter TYPE P2 Nos. 1.00 Subtotal Item Xx. 0
Valve Xxxxxxxx. 4.1 Construction of RCC and Brick masonry xxxxxxxx for valves* hydrants, flow meters etc. including cost of PCC and RCC work, cost of supply and bending and binding of steel with required shuttering, cost of brick work with plaster from inside and outside, precast slabs and supply and installation of SFRC frame and coves wherever required, including all the miscellaneous items of work, but excluding the supply and installation of pipes and specials, valves etc. The item shall be as per specification, drawing and as directed.
Valve Xxxxxxxx. According to the standard drawings for various types of valves, the type of xxxxxxxx to be constructed shall be as specified below.
Valve Xxxxxxxx. According to the standard drawings for various types of valves, the type of xxxxxxxx to be constructed shall be as specified below. Sl. No Type of Xxxxxxxx Unit Qty in DMA 5A1 Qty in DMA 5A2 Total Qty in Pkg. 5F 1 Chamber for Sluice valve TYPE S1 Nos. 6 3 9 2 Chamber for Wash out valve TYPE W1 Nos. 3 3 6 3 Chamber for Wash out valve TYPE W2 Nos. 4 -- 4 Hydraulic testing of the pipeline shall be carried out in sections as specified in Technical specifications Sl. No Descriptions Unit Length in DMA 5A1 Length in DMA 5A2 Total length in Pkg. 5F 1 80 mm - 200mm internal diameter km 1.41 0.88 2.29 2 Above 500 mm - 800 mm internal diameter km -- 0.47 0.47 Total 1.41 1.35 2.76 Sl. No Descriptions Unit Length in DMA 5A1 Length in DMA 5A2 Total length in Pkg. 5F
Valve Xxxxxxxx. According to the standard drawings for various types of valves, the type of xxxxxxxx to be constructed shall be as specified below. Sl. No Type of Xxxxxxxx Unit Qty in DMA 6G4 Qty in DMA 6G7 Qty in DMA 6G10 Qty in DMA 6G19 Total Qty in Xxx. 0X 3 Chamber for Wash out valve TYPE W1 Nos. 1 -- -- -- 1 6 Chamber for PRV/Flow Meter TYPE P2 Nos. 1 -- -- -- 1 7 Chamber for PRV/Flow Meter TYPE P4 Nos. -- 1 -- -- 1 Hydraulic testing of the pipeline shall be carried out in sections as specified in Technical specifications Sl. No Descriptions Unit Length in DMA 6G4 Length in DMA 6G7 Length in DMA 6G10 Length in DMA 6G19 Total length in Pkg. 6C 1 80 mm - 200mm internal diameter km 1.15 1.25 0.83 1.20 4.43 2 Above 200 mm - 300 mm internal diameter km 0.12 -- -- 0.13 0.25 3 Above 300 mm - 500 mm internal diameter km -- -- 1.06 0.05 1.11 Total km 1.27 1.25 1.89 1.38 5.79 Sl. No Descriptions Unit Length in DMA 6G4 Length in DMA 6G7 Length in DMA 6G10 Length in DMA 6G19 Total length in Xxx. 0X
Valve Xxxxxxxx. The Concessionaire shall provide suitable brick masonry xxxxxxxx in cement mortar 1:5 (1 cement: 5 coarse sand) on cement concrete foundations 150 mm thick 1:4:8 mix (1 cement: 4 fine sand: 8 graded stone aggregate 40 mm nominal size) 15 mm thick cement plaster of 1:4 (1 cement: 4 coarse sand) inside and outside finished with a floating coat at neat cement inside with casts iron surface box approved by fire brigade including excavation, back filling complete. Valve chamber shall be of following size: For depth 90 cms – 60 x 60 cms For depths upto 100 cms beyond– 120x120 cms
