Ngā Paipa Whakarewa Porowhita mō ngā Paipa Hau Māori
Paipa whakarewa porowhita, e mōhiotia ana kongongowhakarewa, he mea hanga mā te whakamahi i te hangarau whakarewa matatau hei hanga i tētahi hua kaha. He hononga porowhita tonu tēnei i hangaia mā te whakarewa porowhita i ngā rīpene maitai. Ka whakaratohia e tēnei hanganga ahurei te kaha tino pai, he mea tino pai mō ngā tono uaua pēnei i tengā raina hau māori.
Ko tētahi o ngā whakamahinga matua o ngā paipa whakarewa porowhita ko te kawe i te hau māori. He mea hanga motuhake, he mea hanga hoki kia tū atu ki ngā taiao pēhanga teitei e pā ana ki te tuku hau māori. Mā ngā paipa whakarewa porowhita ka whakarite kia haumaru, kia whai hua hoki te tukunga o te hau māori ki ngā ahumahi me ngā kaihoko, kia tika ai te tuku me te whakaiti i ngā turuturu, i ngā aituā rānei.
| Diameter o Waho Ingoa | Matotoru Pakitara Ingoa (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 |
| Taumaha mō ia waeine Roa （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 | ||||||||||
Hei tāpiritanga,ngā paipa porowhita kua whakapirihiae whakamahia whānuitia ana hoki i roto i ngā pūnaha tuku wai me ngā pūnaha waikeri. Nā tōna hanganga ātete-tauraki me tōna ātete ki te waikura, he mea tino pai mō te kawe wai mai i te pūtake ki te ūnga. Nā tōna pakari, ka taea e ia te tu atu i ngā āhuatanga uaua e pā ana ki ngā kaupapa tuku wai, ka whakarato i ngā otinga pumau, pono hoki ki ngā hapori me ngā ahumahi.
I roto i te umanga matū hinu, he mea nui te mahi a ngā paipa porowhita i whakarewahia ki te kawe i te hau, te mamaoa, te hau hinu wai me ētahi atu matū. Nā tōna kaha me te ātete ki te waikura, he mea pai rawa atu tēnei mō te kawe i ēnei rauemi pūngāwerewere. Ahakoa he wheketere matū hinu nui, he whakaurunga iti rānei, mā ngā paipa porowhita i whakarewahia e whakarite kia haumaru, kia whai hua hoki te kawe i ēnei rauemi nui.
Heoi anō, he whānui te whakamahinga o te hanganga paipa porowhita kua whakapirihia. He maha ngā wā ka whakamahia hei ngongo pou mō ngā turanga i roto i ngā kaupapa hanga, hei whakarato i te tautoko me te pumau e tika ana. Nā te pakari o te paipa i waiho ai hei whiringa tuatahi mō ngā piriti, ngā tauranga, ngā rori me ngā hanganga whare. Nā tōna kaha ki te tu atu ki ngā kawenga taumaha me ngā kaha o waho ka whakarite i te haumaru me te pono o ēnei hanganga, ka waiho hei wāhanga nui i roto i te ao hanga tāone.
Hei whakamutunga, ko te paipa whakarewa porowhita (e mōhiotia ana ko te whakarewa paipa) he otinga maha-whakamahinga, he roa hoki mō ngā momo ahumahi me ngā rāngai. Ko ōna whānuitanga o ngā whakamahinga ko te hangarau tuku wai, te ahumahi hinu matū, te ahumahi matū, te ahumahi hiko, te whakamakuku ahuwhenua, te hanganga tāone, me ētahi atu. Ahakoa e whakamahia ana mō te kawe wai, hau rānei, mō ngā kaupapa hanganga rānei, he kōwhiringa pono, he kōwhiringa whai hua hoki te paipa whakarewa porowhita. Nā tōna kaha, tōna ngāwari me tōna ātete ki te waikura, he mea nui tonu ia i roto i te ahumahi hou.
