Untitled - Future Pipe Industries

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9.0: Tapping water mains Pressure pipes, which require tapping, should have a minimum stiffness of SN 36 psi. ‘Live’ water pipe can be tapped while pressurized and in service to obtain service connections to consumers. Typically, 3/4” service connections are made. 1” service taps are also available. Wide band gunmetal saddles or HDPE saddles may be used to tap FRP pipes. Saddles are normally provided with a threaded outlet of the required size (e.g. 3/4”). The following general procedure should be adhered to: • The outside surface of the pipe, where the saddle will be mounted, in particular where the outlet will be located, should be cleaned and all soil, sand, etc. should be removed by a brush, before mounting the saddle. • Insert the stopcock into the threaded outlet of the saddle before mounting on the pipe, using Teflon tape where necessary. Screw the stopcock in until a tight seal is obtained. • Attach a rubber or PE hose/pipe to the outlet of the stopcock. The hose should be sufficiently long so that water run-off will be outside the trench area. • The saddles should be assembled in accordance with the manufacturer’s instructions, making sure that the rubber O ring seal is well seated and centered between the threaded outlet and the outside surface of the pipe. Do not over-tighten the saddle to avoid damaging or distorting the FRP pipe. • Using a commercial tapping machine, attach the correct hole cutting tool into the tapping machine and screw the assembly quickly into the open stopcock. • Follow the tapping machine operating instruction and after drilling is complete, use the hose and pressurized water to flush out any debris. • Unscrew the tapping machine and close the stopcock, then connect the permanent house connection pipe (typically PE) to the stopcock using a male adapter. • Backfill the pipe following the standard instructions making sure that the backfill material is placed and compacted under the pipe haunches. 43
APPENDIX I: APPROXIMATE WEIGHT OF PIPE & JOINTS (FOR HANDLING PURPOSES ONLY) Nominal pipe weight; lb/ft Coupling weight DN (Inch) SN 18 psi SN 36 psi SN 46 psi SN 72 psi lb/pc 14 7 9 10 11 26 16 18 20 24 28 32 36 40 9 12 15 21 28 36 45 55 11 15 18 25 34 44 56 69 44 67 83 90 103 123 48 79 98 106 127 147 52 92 115 124 142 168 56 107 134 144 164 176 60 122 151 164 186 187 64 139 171 186 211 205 68 156 193 209 241 216 72 175 216 234 270 233 76 194 242 262 317 249 80 213 267 289 333 268 84 234 293 318 367 286 88 258 322 349 403 306 92 281 351 380 456 326 96/98 305 384 415 496 345 100/102 341 416 450 535 365 104/104 366 449 486 577 387 108/110 394 491 514 621 409 112/114 422 527 551 665 431 116/118 452 565 591 711 583 120/122 482 603 630 711 607 128/130 545 683 713 860 631 132/134 578 726 757 914 658 136/ 138 612 765 800 682 140/ 142 649 809 847 708 144/ 146 685 856 894 735 148/ 150 722 903 943 761 152/ 154 759 950 788 156/ 158 799 1000 814 Note: <strong>Pipe</strong> sizes larger than 96” may be ribbed and will weigh less. 44 12 16 19 27 37 48 61 74 14 19 23 33 42 57 72 85 29 33 37 64 73 81 88 101
Page 2 and 3: All information was correct at the
Page 4 and 5: 1.0: Introduction This manual deals
Page 6 and 7: 2.5: Storing pipes on site 2.5.1 Di
Page 9 and 10: Figure 4: Pipes in the same trench
Page 11 and 12: 4.0: Backfilling and installation s
Page 13: 4.5: Classification of native soils
Page 16 and 17: Installation type I ASTM D1586 Blow
Page 18 and 19: Installation type I ASTM D1586 Blow
Page 20: Installation type I ASTM D1586 Blow
Page 23 and 24: 5.1.1: Joint lubricant For lubrican
Page 25: Mechanical lowering is used for lar
Page 28: 5.6: Pipes with locked joints For s
Page 31 and 32: Caution: Always provide a standard
Page 34 and 35: Figure 20 6.2: Pipe zone backfillin
Page 36 and 37: 6.3: Backfilling where temporary sh
Page 38 and 39: 7.0: Hydrostatic testing of pipelin
Page 40 and 41: 7.2: Bracing test-ends and set-up D
Page 42 and 43: 7.6: Final pressure test After all
Page 44 and 45: 7.9.2: Low head water test The Cont
Page 48 and 49: APPENDIX II: Design considerations
Page 51 and 52: APPENDIX III AIR IN PIPELINES, AIR-
Page 53 and 54: APPENDIX IV FLANGE INSTALLATION INS
Page 55 and 56: Table 1a If connected to raised fac
Page 57 and 58: APPENDIX V: LIST OF REFERENCES The

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