Specifications Part 1 - Water Supply, Sewerage and Tube Well Works

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11.3.2 Each pipe and fittings may also be marked with the standard mark (ISIMarked).11.4 Pipes and fittings:11.4.1 The internal diameter of barrels of straight pipes, junctions and bends of size100mm to 300mm shall be as per table 9.2.11.4.2 The internal diameter of the barrels of straight pipes for pipes of 100 mm to 350mm shall be within ±3 % of the diameter.11.4.3 The mean thickness of the barrel and the socket of the pipes junctions andbends shall not be less than mean thickness given in col 4 of Table 1 of IS:651: 2007. Such mean thickness of the barrel or sockets of any individual pipejunctions and bends shall be ascertained by making several minimum 4measurements and adding the measured minimum thickness (not in thegroove) to the maximum thickness and dividing the sum by two. The meanthickness of the barrel and socket shall be determined separately.11.4.4 The difference between the minimum and maximum measured thickness ofbarrel and sockets mentioned in para 11.4.2 shall not exceed ±3 % (in mm) for100-350 mm diameter of pipes.11.4.5 Tolerance on angles of bends shall be within ±3º.11.4.6 Socket11.4.6.1 The interior of the socket shall be conical, having a minimum taper of 1 mm,measured on the diameter, per 15 mm length, thus the diameter of a socket 50mm deep will be at least 3 mm greater at the top than at the bottom. The depthof the sockets shall be in accordance with as given in Table 11.2.11.4.6.2 The width of the shoulder of socket of any individual pipe or fitting shall exceedthe mean thickness of the barrel by not less than the values given in Table11.2. If rubber ring joints are used, taper may not be provided.11.4.7 Grooving:-11.4.7.1 The interior of the socket and exterior of the spigots shall be groovedcircumferentially, and such grooving on the spigot shall be for a length equal toone and half times the depth of sockets, and the depth of such grooves shall bebetween 1 mm to 2.5 mm. If rubber ring joints are used, as agreed to betweenthe manufacturer and the buyer, grooving may not be provided.11.4.8 Bends :-11.4.8.1 Dimensions of bends shall be in accordance with tables 2 to 6 of IS: 651:2007.9.4.8.2 The barrel and branches of half section channel junctions may be of any of thediameters shown in col.2 of table 9.2. But the diameter of the branches shallnot exceed that of the barrel diameter. The angle at junction shall be 45º ±3º or90º ±3º.Urban Administration & Development Department Page 130
11.4.8.3 The taper pipes and half section tapers channels may be in any normalcombination of diameter and lengths.11.5 Loading and UnloadingAt every point of loading or unloading, pipes or casting must be handled byapproved lifting tackles. Unloading by rolling down planks or any other form ofinclined ramp will not be allowed unless the written consent of the engineer tothe method proposed has been obtained. Pipes are to be carefully stacked onsite with timber packing under and between the pipes. The pipes are to be laidup at the gradients beginning at the lower end. No pipe is to be laid until thetrench has been excavated to its required depth for a distance of 20m, in frontof the pipe to be laid. (this distance may very as directed by the Engineer.11.6. Laying11.6.1 Handling of Stoneware pipes into Trench in shallow trenches manual handlingis enough, but in deep trenches they should be lowered into the trench bymeans of ropes. Under no circumstances shall the pipes be dropped ordumped into the trench.11.6.2 Detection of Cracks in pipes and fittings: The pipe and fittings shall beinspected for defects, and be rung with a light hammer preferably whilesuspended to detect cracks.11.6.3 Cleaning pipes and fittings: All lumps, blisters and excess coating material shallbe removed gently from the socket and spigot end of each pipe and the outsideof the spigot and the inside of the socket shall be wiped clean and dry beforethe pipe is laid.11.6.4 Placing the pipes in Trench: Every precaution shall be taken to prevent foreignmaterials from entering the pipes when it is being placed in the line. Normallythe socket ends should face the up-stream. When the line runs uphill thesocket ends should face the up-grade.11.6.5 After placing a length of pipe in the trench on concrete bedding where that isspecified, the spigot end shall be centered in the socket and the pipe forcedhome and aligned to gradient. The pipe shall be secured in place withapproved backfill material or concrete tamped under it except at the socket.Pipe and fittings which do not allow a sufficient and uniform space for jointsshall be removed and replaced with pipe and fittings of proper dimensions toensure such uniform space. Precautions shall be taken to prevent dirt fromentering the joint space (see Drawing No.-8).11.6.6 At time when pipe laying is not in progress, the open ends of pipe shall beclosed by a watertight plug or canvas or other means approved by the siteengineer.11.6.7 Sight rails shall be provided at all changes of directions or gradients atdistances of about 30 m along straight lengths. The centre line shall be markedUrban Administration & Development Department Page 131
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GOVERNMENT OF MADHYA PRADESHDEPARTM
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Branch(i) A special form of cast ir
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A valve in which the closure to an
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Sullage waste Water:Spent water fro
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Laying:The approximate positions of
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CHAPTER NO.1CAST IRON SOCKET AND SP
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Socket and spigot pipes Class AWeig
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1.5 .4 Pipe shall be tested hydrost
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1.9.3 Mass (weight) of the various
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Diameter (mm)Weight (approx) kgHeav
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1.9.3.11 Cast iron plugs:-Diameter
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1.12.7 Caulking may be done with pn
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2.5 Thrust Blocks2.5.1 In case of b
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2.9.3 Should any test of the pipe l
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CHAPTER NO.3CAST IRON PIPES AND SPE
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3.4.2.2 Cast iron flanged spigot:-R
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3.4.2.6 All flanged cast iron tees:
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Nominal diameterTable 2.3Refer Tabl
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Table No.3.8DimensionWall thickness
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CHAPTER NO. 4DUCTILE IRON PRESSURE
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Nominal Diameter Outer diameter of
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4.3.2.4 Where the coating material
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Nominal DiameterDN (mm)Table No. 4.
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4.7.2.3 Lengths of FittingsThe perm
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during the jointing operations. As
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CHAPTER NO.5:UNPLASTICIZED PVC PIPE
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NominaloutsideDiameter(Nominalsize)
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5.10 Handling and storage5.10.1 Bec
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a)b) Size of the fitting and the ap
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5.14.5 Trench Bottom5.14.5.1 The tr
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CHAPTER NO.6CAST IRON VALVES6.1 App
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efore painting. All exposed machine
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with the main. For large aqueduct p
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6.4.7 Nominal sizes :-6.4.7.1 The r
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Table No.6.6Material for different
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CHAPTER -7GALVANIZED IRON PIPES, SP
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7.4.2 Globe Valves- The globe valve
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7.6 Testing of valves:-7.6.1 Genera
Page 82 and 83: NominalBoreDimensions and Nominal M
Page 84 and 85: 7.10 Testing of Pipes :Following te
Page 86 and 87: Nominal BoreMinimum Outside Minimum
Page 88 and 89: 7.15.2.2 Taper Screw Plug TestSocke
Page 90 and 91: 7.20.2 All pipes and fittings shall
Page 92 and 93: S.NoTolerance and ovality is given
Page 94 and 95: 8.7.2 The pipe shall be as uniform
Page 96 and 97: directional changes within the tren
Page 98 and 99: frequently used and in normal or sl
Page 100 and 101: 8.22 Test to Establish Perfectibili
Page 102 and 103: 8.26.6.3 PP Saddles8.26.6.3.1 The b
Page 104 and 105: g Bypass Pipe Carbon Steel IS1239(p
Page 106 and 107: 9.4.1 Coupling Area of jointThis is
Page 108 and 109: Table No. 9.3Hydrostatic Design Pre
Page 110 and 111: polyester belts with a minimum widt
Page 112 and 113: 9.19.4 Straight continues lengths o
Page 114 and 115: Table No. 10.2(Refer Table No.1 IS
Page 116 and 117: 1592-2003. The tolerances on the in
Page 118 and 119: 10.5.2.5 Weight of cast iron plain
Page 120 and 121: 10.5.2.9 Weight of cast iron Plain
Page 122 and 123: 10.8.1.1 Width- The width of the tr
Page 124 and 125: 10.11.2 Cast Iron Detachable Joints
Page 126 and 127: shall be used between the straps an
Page 128 and 129: 10.18.9.1 After the test has been c
Page 130 and 131: CHAPTER NO- 11SALT GLAZED STONEWRE
Page 134 and 135: on each horizontal rail which is fi
Page 136 and 137: 11.7.7 The joint with cast iron or
Page 138 and 139: CHAPTER NO- 12UNPLASTICIZED NON-PRE
Page 140 and 141: 12.4 Dimensions of Pipes:12.4.1 Mea
Page 142 and 143: 12.8 Trench:-(See Drawing No.3)12.8
Page 144 and 145: 12.13.3 Care should be taken to lea
Page 146 and 147: 12.17.6 HandlingFollowing Recommend
Page 148 and 149: 12.17.10 Construction of backfill e
Page 150 and 151: CHAPTER - 13REINFORCED CEMENT CONCR
Page 152 and 153: Diameter ThicknessStrength Test Req
Page 154 and 155: Table 13.5(Refer Clause 8.2 IS 458
Page 156 and 157: efore the next pipe is laid. Adequa
Page 158 and 159: 13.11.4 The water shall be filled t
Page 160 and 161: Chapter - 14SEWER APPURTENANCES14.1
Page 162 and 163: provided with cover of medium duty
Page 164 and 165: 14.3.5.4.3 (c) By drop in previous
Page 166 and 167: 14.5.3.4 Where the diameter of the
Page 168 and 169: 14.7.4 Heavy reinforced concrete co
Page 170 and 171: 14.11 By pass:By pass arrangements
Page 172 and 173: acetate paper, silt drums, ropes, i
Page 174 and 175: 14.22. Automotive Suction Machine :
Page 176 and 177: 14.25.3 Brick Masonry Chamber : Aft
Page 178 and 179: 15.2.5 Lift: the vertical distance
Page 180 and 181: ensure that drilling has been done
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accepted deductions (stated as a pe
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described in IS 4031 (Part-5) : 198
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v) Cleat bolt of size M-10vi)vii)Se
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15.17.5.3 To protect persons from i
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15.17.5.19. Wherever a socket or co
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esults in unsuitable sub grade cond
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15.17.14.7 Clear out space shall be
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15.17.15.7.1 Ordinarily no surplus
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Water Supply pipes lines should be
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16.3.3 Failure to remove the ridge
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16.9.12 The cover shall be capable
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17.7 Development of tube-well with
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17.13.4 Fine enough to prevent the
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(iv) No. of slots per m 429(v) % Ar
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Annexure: ADRILLING OF TUBE WELL1.
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particularly those having clay or s
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5.3.2 The shape of the openings sho
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5.7.3.6.1 The contractor shall deve
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STRATACHATANNEXURE-2Mohalla/BastiNa
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LocationApparentResistivelyAB/2Inte
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GRAVEL PACKED TUBE WELLSGAVEL PACKE
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HAND PUMP PLATEFORMUrban Administra
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Urban Administration & Development
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Specifications Part 1 - Water Supply, Sewerage and Tube Well Works

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