Spiral Welded Pipe Bakeng sa Fire Fighting Piping
Re motlotlo ho hlahisa tse ntle ka ho fetisisaphala e tjheseletsang ea seam e spiralmohala, o etselitsoeng ka ho khetheha phaephe ea mohala le phaephe ea mollo ka lits'ebetso tse bophara bo boholo. Liphaephe tsa rona tse tšetsoeng ka seam seal ke tharollo e phethahetseng bakeng sa liindasteri tse hlokang litsamaiso tsa liphaephe tse tšoarellang le tse tšepahalang. Ka theknoloji e tsoetseng pele ea tlhahiso le thepa ea boleng bo holimo, liphaephe tsa rona tse tšetsoeng ka seam seal li fihlela le ho feta maemo a indasteri.
Phaephe e phuthetsoeng ka seam e spiral e bolela phaephe ea tšepe e nang le seam e phuthetsoeng ka mokhoa oa ho tjheseletsa ka arc e qoelitsoeng. Mokhoa ona o netefatsa weld e matla le e tsitsitseng boleleleng ba phaephe, e fanang ka matla a phahameng le ho tšoarella. Mela ea rona ea phaephe e phuthetsoeng ka seam e spiral e etselitsoe ho mamella litlhoko tse thata tsa ts'ebeliso, e leng se etsang hore e be e loketseng liindasteri tse fapaneng.
| Bophara ba Kantle bo Ikhethang | Botenya ba Lebota bo Ikhethang (mm) | ||||||||||||||
| mm | In | 6.0 | 7.0 | 8.0 | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 15.0 | 16.0 | 18.0 | 20.0 | 22.0 |
| Boima ka Yuniti Bolelele (kg/m) | |||||||||||||||
| 219.1 | 8-5/8 | 31.53 | 36.61 | 41.65 | |||||||||||
| 273.1 | 10-3/4 | 39.52 | 45.94 | 52.30 | |||||||||||
| 323.9 | 12-3/4 | 47.04 | 54.71 | 62.32 | 69.89 | 77.41 | |||||||||
| (325) | 47.20 | 54.90 | 62.54 | 70.14 | 77.68 | ||||||||||
| 355.6 | 14 | 51.73 | 60.18 | 68.58 | 76.93 | 85.23 | |||||||||
| (377.0) | 54.89 | 63.87 | 72.80 | 81.67 | 90.50 | ||||||||||
| 406.4 | 16 | 59.25 | 68.95 | 78.60 | 88.20 | 97.76 | 107.26 | 116.72 | |||||||
| (426.0) | 62.14 | 72.33 | 82.46 | 92.55 | 102.59 | 112.58 | 122.51 | ||||||||
| 457 | 18 | 66.73 | 77.68 | 88.58 | 99.44 | 110.24 | 120.99 | 131.69 | |||||||
| (478.0) | 69.84 | 81.30 | 92.72 | 104.09 | 115.41 | 126.69 | 137.90 | ||||||||
| 508.0 | 20 | 74.28 | 86.49 | 98.65 | 110.75 | 122.81 | 134.82 | 146.79 | 158.69 | 170.56 | |||||
| (529.0) | 77.38 | 90.11 | 102.78 | 115.40 | 127.99 | 140.52 | 152.99 | 165.43 | 177.80 | ||||||
| 559.0 | 22 | 81.82 | 95.29 | 108.70 | 122.07 | 135.38 | 148.65 | 161.88 | 175.04 | 188.17 | |||||
| 610.0 | 24 | 89.37 | 104.10 | 118.77 | 133.39 | 147.97 | 162.48 | 176.97 | 191.40 | 205.78 | |||||
| (630.0) | 92.33 | 107.54 | 122.71 | 137.83 | 152.90 | 167.92 | 182.89 | 197.81 | 212.68 | ||||||
| 660.0 | 26 | 96.77 | 112.73 | 128.63 | 144.48 | 160.30 | 176.05 | 191.77 | 207.43 | 223.04 | |||||
| 711.0 | 28 | 104.32 | 121.53 | 138.70 | 155.81 | 172.88 | 189.89 | 206.86 | 223.78 | 240.65 | 257.47 | 274.24 | |||
| (720.0) | 105.65 | 123.09 | 140.47 | 157.81 | 175.10 | 192.34 | 209.52 | 226.66 | 243.75 | 260.80 | 277.79 | ||||
| 762.0 | 30 | 111.86 | 130.34 | 148.76 | 167.13 | 185.45 | 203.73 | 211.95 | 240.13 | 258.26 | 276.33 | 294.36 | |||
| 813.0 | 32 | 119.41 | 139.14 | 158.82 | 178.45 | 198.03 | 217.56 | 237.05 | 256.48 | 275.86 | 295.20 | 314.48 | |||
| (820.0) | 120.45 | 140.35 | 160.20 | 180.00 | 199.76 | 219.46 | 239.12 | 258.72 | 278.28 | 297.79 | 317.25 | ||||
| 864.0 | 34 | 147.94 | 168.88 | 189.77 | 210.61 | 231.40 | 252.14 | 272.83 | 293.47 | 314.06 | 334.61 | ||||
| 914.0 | 36 | 178.75 | 200.87 | 222.94 | 244.96 | 266.94 | 288.86 | 310.73 | 332.56 | 354.34 | |||||
| (920.0) | 179.93 | 202.20 | 224.42 | 246.59 | 286.70 | 290.78 | 312.79 | 334.78 | 356.68 | ||||||
| 965.0 | 38 | 188.81 | 212.19 | 235.52 | 258.80 | 282.03 | 305.21 | 328.34 | 351.43 | 374.46 | |||||
| 1016.0 | 40 | 198.87 | 223.51 | 248.09 | 272.63 | 297.12 | 321.56 | 345.95 | 370.29 | 394.58 | 443.02 | ||||
| (1020.0) | 199.66 | 224.39 | 249.08 | 273.72 | 298.31 | 322.84 | 347.33 | 371.77 | 396.16 | 444.77 | |||||
| 1067.0 | 42 | 208.93 | 234.83 | 260.67 | 286.47 | 312.21 | 337.91 | 363.56 | 389.16 | 414.71 | 465.66 | ||||
| 118.0 | 44 | 218.99 | 246.15 | 273.25 | 300.30 | 327.31 | 354.26 | 381.17 | 408.02 | 343.83 | 488.30 | ||||
| 1168.0 | 46 | 228.86 | 257.24 | 285.58 | 313.87 | 342.10 | 370.29 | 398.43 | 426.52 | 454.56 | 510.49 | ||||
| 1219.0 | 48 | 238.92 | 268.56 | 298.16 | 327.70 | 357.20 | 386.64 | 416.04 | 445.39 | 474.68 | 553.13 | ||||
| (1220.0) | 239.12 | 268.78 | 198.40 | 327.97 | 357.49 | 386.96 | 146.38 | 445.76 | 475.08 | 533.58 | |||||
| 1321.0 | 52 | 291.20 | 323.31 | 327.97 | 387.38 | 449.34 | 451.26 | 483.12 | 514.93 | 578.41 | |||||
| (1420.0) | 347.72 | 355.37 | 416.66 | 451.08 | 485.41 | 519.74 | 553.96 | 622.32 | 690.52 | ||||||
| 1422.0 | 56 | 348.22 | 382.23 | 417.27 | 451.72 | 486.13 | 520.48 | 554.97 | 623.25 | 691.51 | 759.58 | ||||
| 1524.0 | 60 | 373.38 | 410.44 | 447.46 | 484.43 | 521.34 | 558.21 | 595.03 | 688.52 | 741.82 | 814.91 | ||||
| (1620.0) | 397.03 | 436.48 | 457.84 | 515.20 | 554.46 | 593.73 | 623.87 | 711.11 | 789.12 | 867.00 | |||||
| 1626.0 | 64 | 398.53 | 438.11 | 477.64 | 517.13 | 556.56 | 595.95 | 635.28 | 713.80 | 792.13 | 870.26 | ||||
| 1727.0 | 68 | 423.44 | 465.51 | 507.53 | 549.51 | 591.43 | 633.31 | 675.13 | 758.64 | 841.94 | 925.05 | ||||
| (1820.0) | 446.37 | 492.74 | 535.06 | 579.32 | 623.50 | 667.71 | 711.79 | 799.92 | 887.81 | 975.51 | |||||
| 1829.0 | 72 | 493.18 | 626.65 | 671.04 | 714.20 | 803.92 | 890.77 | 980.39 | |||||||
| 1930.0 | 76 | 661.52 | 708.40 | 755.23 | 848.75 | 942.07 | 1035.19 | ||||||||
| (2020.0) | 692.60 | 741.69 | 790.75 | 888.70 | 986.41 | 1084.02 | |||||||||
| 2032.0 | 80 | 696.74 | 746.13 | 795.48 | 894.03 | 992.38 | 1090.53 | ||||||||
| (2220.0) | 761.65 | 815.68 | 869.66 | 977.50 | 1085.80 | 1192.53 | |||||||||
| (2420.0) | 948.58 | 1066.26 | 1183.75 | 1301.04 | |||||||||||
| (2540.0) | 100 | 995.93 | 1119.53 | 1242.94 | 1366.15 | ||||||||||
| (2845.0) | 112 | 1116.28 | 1254.93 | 1393.37 | 1531.63 | ||||||||||
Phaephe ea rona e phuthetsoeng ka seam e entsoeng ka spiral e etselitsoe ka ho khetheha hore e sebelisoe e lephaephe ea mohala, e fana ka tharollo e theko e tlaase bakeng sa ho tsamaisa oli, khase ea tlhaho le maro a mang libakeng tse telele. Kaho ea sehokelo sa spiral e fana ka khanyetso e ntle haholo likhatellong tse phahameng tsa kahare le meroalo ea kantle, e leng se etsang hore e lokele mefuta e fapaneng ea lits'ebetso tsa liphaephe. Ho feta moo, liphaephe tsa rona tse kopantsoeng ka sehokelo sa spiral li fumaneha ka bophara bo boholo, e leng se etsang hore li be ntle bakeng sa merero e hlokang ho koaheloa ho hoholo le sekhahla se phahameng sa phallo.
Ho phaella moo, liphaephe tsa rona tse welded ka seam tse potolohang le tsona li loketse bakeng samohala oa phaephe ea molloditshebediso. Kaho e tiileng le ho tjheseletsa ka botshepehi ha diphaephe tsa rona di etsa hore di lokele ho sebediswa ditsamaisong tsa tshireletso ya mollo, ho netefatsa hore metsi kapa dintho tse ding tse timang mollo di tsamaiswa ka polokeho le ka bokgabane. Ka matla a tsona a ikgethang le ho hanyetsa mocheso o phahameng, diphaephe tsa rona tse tjheseletsang ka seam tse spiral di fana ka karolo ya bohlokwa ya meralo ya motheo ya tshireletso ya mollo.
Ntle le tshebetso e ntle ka ho fetisisa, mela ya rona ya diphaephe tse welditsweng ka seam e spiral e entswe ka boleng le botshepehi kelellong. Re sebedisa thepa ya boleng bo hodimo le mekgwa ya tlhahiso e tsoetseng pele ho netefatsa hore phaephe e nngwe le e nngwe e fihlella maemo a rona a tiileng a boleng. Boitlamo ba rona ba ho ba le bokgoni bo botle bo bolela hore o ka tshepa phaephe ya rona e welditsweng ka seam e spiral ho fana ka tshebetso e ntle maemong a thata ka ho fetisisa.
Re utloisisa bohlokoa ba ho fana ka lihlahisoa tse tšepahalang le tsa boleng bo holimo ho bareki ba rona, ke ka lebaka leo mohala oa rona oa tlhahiso ea liphaephe tse tšehelitsoeng ka seam seam o tšehetsoang ke boitlamo ba rona ba ho khotsofatsa bareki. Hore na o hloka phaephe ea mohala bakeng sa phetisetso ea mokelikeli o hole kapa mela ea mollo bakeng sa litsamaiso tsa bohlokoa tsa tšireletso ea mollo, phaephe ea rona ea spiral seam e tšehelitsoeng ke khetho e phethahetseng bakeng sa litlhoko tsa hau.
Ka bokhutšoanyane, mohala oa rona oa tlhahiso ea liphaephe tse kopantsoeng ka seam seam ke tharollo ea ho qetela bakeng sa liindasteri tse batlang litsamaiso tsa liphaephe tse tšepahalang le tse tšoarellang. Matla a eona a sa bapisoeng le a mang, bokhoni ba eona ba bophara bo boholo, le ho tšoaneleha bakeng sa lits'ebetso tsa mohala oa liphaephe tsa mollo li etsa hore e be karolo e feto-fetohang le ea bohlokoa bakeng sa merero e fapaneng. Re motlotlo ho fana ka phaephe e kopantsoeng ka seam seam e le tharollo e tšepahalang le e theko e tlaase litlhokong tsa hau tsa liphaephe.








