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

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10.11.2 Cast Iron Detachable Joints10.11.2.1 The joint shall consist of a central collar, two rubber rings, two flanges of castiron and the required number of bolts and nuts.10.11.2.2 One flange and rubber flange shall be placed on end of the pipe already laid,and the other flange, rings and central collar shall be slipped on to the pipe tobe assembled.10.11.2.3 The rubber ring shall be kept positioned at half the collar width less 2.5 mmfrom the end of the pipe already laid.10.11.2.4 The other pipe shall be brought nearer leaving a gap of 5 mm between the twopipe ends. This gap will facilitate maneuvering of deflection at joints afterassembly and will take care of an expansion in the pipeline.10.11.2.5 The collar shall be slided to sit square around the rubber ring on pipe 1, andthen the rubber ring shall be rolled on pipe 2 sit around the collar.10.11.2.6 The flanges shall be moved on both ends to enclose rubber rings. Thefastening bolts shall be inserted through the holes of the flanges and the boltsshall be tightened alternately and evenly for proper sitting of the joints.10.12 Asbestos Cement Coupling10.12.1 This joints shall consist of three rubber rings and an asbestos cement couplingmachined on the inside10.12.2 The rubber rings shall be sealed in their respective grooves, after cleaning thecoupling and rubber rings. The machined ends of the pipe and end rings in thecoupling shall be suitably lubricated with a soft soap solution or other lubricant.Then, the assembly shall be made by pushing with a crow-bar or using a pipepuller.10.12.3 The joints shall be made by keeping the pipes in one line. Any permissibledeflection at the joint shall be made after completion of the joint only.10.13 Detachable joints and rubber rings for the detachable joints shall conform to IS:8794 and IS: 10292 respectively.10.14 Laying of fittings10.14.1 All cast iron fittings shall be plain ended to suit the outside diameter ofasbestos cement pressure pipes and to the class and diameter of pipemanufactured. When using such cast iron, fittings, they are jointed by cast irondetachable joints only. For any cast iron specials having flange, they are jointedin the pipeline with cast iron flange adaptors having one end flanged and theother plain ended.Urban Administration & Development Department Page 122
10.15 Thrust Block10.15.1 Thrust block are required to transfer the hydraulic thrust from the fitting or pipeon to a larger load bearing soil section.10.15.2 Thrust block shall be installed wherever there is a change in the direction of thepipeline, size of the pipeline or the pressure-line diagram, or when the pipelineends at a dead end.10.15.3 Thrust block shall be constructed taking into account the pipe size, waterpressure, type of fitting, gravity component shell when laid on slopes, and thetype of soil. The location of thrust block for various types of fittings is given inFig-810.15.4 When a fitting is used to make a vertical bend, it shall be anchored to aconcrete thrust block designed to have enough weight to resist the upward andoutward thrust.10.15.4.1 Similarly at joints, deflected in vertical plane, it shall be ensured that the weightof the pipe, the water in the pipe and the weight of the soil over the pipeprovide resistance to upward movement. If it is not enough, ballast or concreteshall be placed around the pipe in sufficient weight to counteract the thrust.10.15.5 When the line is under pressure there is an outward thrust at each coupling.Good soil, properly tamped is usually sufficient to hold pipe from sidemovement.10.15.5.1 However, if soft soil condition is encountered, it may be necessary to provideside thrust blocks or other means of anchoring. In such cases only the pipe oneach side of the deflected coupling shall be anchored without restricting thecoupling.10.15.6 Pipes on slopes need be anchored only when there is a possibility of thebackfill around the pipe sloping down the hill and carrying the pipe with it.soil, carefully tamped in layersof 100 mm under and over the pipe, right up to the top of the trench will notrequire anchoring.10.15.6.1 For steeper slopes, one out of every three pipes shall be held by strapsfastened to vertical supports anchored in concrete.10.16 Service Connections10.16.1 When the pipe is used in distribution house service, connections shall beprovided through a saddle piece.10.16.1.1 The saddle piece consists of two straps which envelopes the portion of pipefrom where connection is to be given. The hole of required size shall be drilledthrough the pipe and the boss provided in the top strap. Ferrule piece shall beconnected after making threads in the boss and pipe. Suitable rubber packingUrban Administration & Development Department Page 123
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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
Page 74 and 75: Table No.6.6Material for different
Page 76 and 77: CHAPTER -7GALVANIZED IRON PIPES, SP
Page 78 and 79: 7.4.2 Globe Valves- The globe valve
Page 80 and 81: 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 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 132 and 133: 11.3.2 Each pipe and fittings may a
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
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14.22. Automotive Suction Machine :
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14.25.3 Brick Masonry Chamber : Aft
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15.2.5 Lift: the vertical distance
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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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