Directorate Of Municipal Administration Tender

PWD SR-2023-24-Vol.5-Page No.29-Item No.2.37.3 - Supply and fixing of Single / Double chamber triple function tamper proof (Both the orifces to be housed in the single chamber) Air valves with Body and cover in Ductile cast iron of grade GGG 40/50.All internal parts such as float, shell with appurtenances., all cover bolts of austenitic alloy / SS 304 steel, DN 50 float of HOSTAFLON / SS 304 and gaskers and seals of EPDM.Epoxy powder coating (EP-P) inside and outside colour blue RAL5005.The valves should be designed for all the three functions i.e., 1.Large orifice for venting of large air volumes on start up.2.Large orifice for intake of large air volumes.3.Small orifice for discharge of pressurized air during operation.For PN 10.0 For TP Air Valves of 100mm dia.

PWD SR-2023-24-Vol.5-Page No.22-Item No.2.23.3 - Providing and fixing DI Resilient seated soft sealing SLUICE VALVE of variouis dia.with body bonnet of Ductile Iron (DI) conforming ti IS-1865 with the latest amendments and of grade GGG 40/50, shaft of stainless steel, wedge fully rubber lined with EDPM seals of NBR and the valves should be vacum tight and 100% leak proof with face to face dimensions as per IS 14846-2000 with the latest amendments only.The stem sealing should be with toroidal sealing rings (minimum 2 " O " rings).Body and bonnet should be coated with Electrostatically applied Epoxy Powder Coating with minimum coating thickness of 250 micron both inside and outside.The rate is inclusive of cost of valves, T.P set, galvanized bolts & nuts and rubber insertions etc.but excluding earth work.For PN-10: (Note: TP set should be considered only for DI pipes estimate.For MS pipes estimates, TP sets cost of corresponding dia shall be deducted from the SR rates of valves and provision for corresponding dia MS flanges should be made in the estimate.) etc.complete: For sluice Valve of PN-10.0 and 100mm

PWD SR-2023-24-Vol.2-Page No.127-Item No.13.54 - Constructing brick masonry chamber for underground C.I.inspection chamber and bends with bricks in cement mortar 1:4 (1 cement : 4 coarse sand) C.I.cover with frame (light duty) 500X700 mm internal dimensions, total weight of cover with frame to be not less than 38 kg (weight of cover 23 kg and weight of frame 15 kg), R.C.C.top slab with 1:1.5:3 mix (1 cement : 1.5 fine sand : 3 graded stone aggregate 20 mm nominal size), foundation concrete 1:5:10 (1 cement : 5 fine sand : 10 graded stone aggregate 40 mm nominal size), inside lastering 12 mm thick with cement mortar 1:3 (1 cement : 3 coarse sand), finished smooth with a floating coat of neat cement on walls and bed concrete etc.complete as per standard design: Inside dimensions 500x700 mm and 45 cm deep for pipe line with one or two inlets :With common burnt clay (non modular) bricks of class designation 3.5

PWD SR-2023-24-Vol.2-Page No.127-Item No.13.55.2 - Constructing brick masonry chamber for underground C.I.inspection chamber and bends with bricks in cement mortar 1:4 (1 cement : 4 coarse sand) C.I.cover with frame (light duty) 500X700 mm internal dimensions, total weight of cover with frame to be not less than 38 kg (weight of cover 23 kg and weight of frame 15 kg), R.C.C.top slab with 1:1.5:3 mix (1 cement : 1.5 fine sand : 3 graded stone aggregate 20 mm nominal size), foundation concrete 1:5:10 (1 cement : 5 fine sand : 10 graded stone aggregate 40 mm nominal size), inside lastering 12 mm thick with cement mortar 1:3 (1 cement : 3 coarse sand), finished smooth with a floating coat of neat cement on walls and bed concrete etc.complete as per standard design:Extra for depth beyond 45 cm of brick masonry chamber : For 500x700 mm size With common burnt clay (non modular) bricks of class designation 3.5