Material of construction. The materials of construction to be used in the work shall be governed by the MORTH /IRC specifications for Rural roads /other IRC publications and their manual/ latest CPWD specifications/ISI codes for buildings and the relevant Indian standard specification with amendments and revisions issued up to the date of tender notice. Where ever any material has I.S.I. mark such material alone has to be used
Material of construction. Body: Main body should be made up of Ductile Iron with standard BSP female threads.
Material of construction. The can body and can lid shall be made from sheets of Aluminium alloy conforming to BIS designation 64304 (HS 30) of BIS: 737-1974 and handles and bottom band of BIS: 733-1975. Further, the cans shall be manufactured as per specifications laid down in BIS 1825/1983. Can body shall be made of single piece stream-lined construction formed by deep drawing/ spinning and subsequent spinning. Weld joints should be completely eliminated. Bottom shall be made from extruded section of aluminium alloy, rolled and brazed or welded, to ring shape. The bottom band shall be shrunk fit with proper locking arrangement on the body. This shall be followed by brazing or welding all sides flushed with bottom permitting draining of water and detergent from bottom of the reversed can. The lid should also be of the same aluminium alloy and with conical skirts provided with air equalizing holes. The lid to have mushroom shape to drain off any water outside. The lid should be provided with two nos. of punched holes near periphery of lid for sealing the can. The two-piece can lid should be perfectly spot welded at four points near periphery and one point at the centre followed by brazing all around. Handle shall be made of extruded Aluminium alloy bar, and properly bent to ensure a firm grip. The ends of the handles shall be rounded to avoid injury while handling. Each can to have 2 handles, one on each side of the shoulder.
Material of construction. X.XX. Description (CS) - MATERIAL FOR CARBON STEEL VALVE BODY (A216 WCB) 2 Disc STAINLESS STEEL A351 Gr CF8M 3 Shaft SS AISI 410 4 Bearings Manufacturer STD 5 Seat EPDM Rubber 6 Gear Casing MFG STD 7 Gears MFG STD 8 Handle Malleable Iron only no alternate material allowed 9 Bolt/Nut ASTM A193 Gr.B7/ ASTM A194 Gr.2H NAottacNhom. e#n1t:PR DOCS – MAIN –19B0H01A4R12A2T6-HFREAAMVEY WELOERCKT-RCIACSATLISROLINMBITUETTDERFLY VALVES.pdf Form No: PROJECT ENGINEERING & SYSTEMS DIVISION TECHNICAL SPECIFICATION FOR BUTTERFLY VALVES (WAFER/WAFER LUG) WITH RESILIENT SEAT F0R WATER / AIR SERVICE PY 52 148 Rev. No. 10 X.XX. Description (SS) - MATERIAL FOR STAINLESS STEEL VALVE BODY (CF8M) 4 Bearings Manufacturer STD 5 Seat EPDM Rubber 6 Gear Casing MFG STD 7 Gears MFG STD 8 Handle Malleable Iron only no alternate material allowed 9 Bolt/Nut ASTM A193 Gr.B7/ ASTM A194 Gr.2H X.XX. Description (CI) - MATERIAL FOR CAST IRON VALVE BODY (FG 260) 2 Disc STAINLESS STEEL A351 Gr CF8M 3 Shaft SS AISI 410 4 Bearings Manufacturer STD 5 Seat EPDM Rubber 6 Gear Casing MFG STD 7 Gears MFG STD 8 Handle Malleable Iron only no alternate material allowed 9 Bolt/Nut ASTM A193 Gr.B7/ ASTM A194 Gr.2H The information on this document is the property of BHARAT HEAVY ELECTRICALS LIMITED, It must not be used directly or indirectly in any way detrimental to the interest of the company.
