ʻO ka ʻike nui o ka Pipe Iron Ductile
ʻO nā paipu hao he mau paipu i hana ʻia me ka hao ductile. ʻO ka hao ductile he hao graphite i hoʻoheheʻe ʻia. ʻO ke kūlana kiʻekiʻe o ka hilinaʻi o ka hao ductile ma muli o kona ikaika kiʻekiʻe, paʻa, a me ka hopena a me ka pale ʻana i ka corrosion. Hoʻohana maʻamau ʻia nā paipu hao ductile no ka hāʻawi ʻana i ka wai inu a me ka pahū ʻana i nā slurries, ka ʻōpala a me ke kaʻina hana. ʻO kēia mau paipu hao he mea hoʻomohala pololei ia o nā paipu hao i hoʻolei ʻia i kēia manawa a aneane e pani. ʻO ke kūlana kiʻekiʻe o ka hilinaʻi ʻana o nā paipu hao ductile ma muli o kāna mau waiwai ʻoi aku ka maikaʻi. ʻO kēia mau paipu ka mea i ʻimi nui ʻia no kekahi mau hana.
ʻO ka ʻōlelo kikoʻī o nā paipu hao ductile
| Inoa Huahana | ʻO ka hao hoʻoheheʻe i hoʻopaʻa ʻia iā ia iho, Paipu Hao Ductile me ka Spigot & Socket, Paipu Hao Hina. |
| Nā kikoʻī | ʻO ASTM A377 Haʻahaʻa Uila, AASHTO M64 Nā Paipu Hoʻoheheʻe Hao |
| Kūlana | ISO 2531, EN 545, EN598, GB13295, ASTM C151 |
| Papa Papa | C20, C25, C30, C40, C64, C50, C100 & Papa K7, K9 & K12 |
| Ka lōʻihi | 1-12 mika a i ʻole e like me ke koi o ka mea kūʻai aku |
| Nui | DN 80 mm a i DN 2000 mm |
| ʻAno Hui | ʻAno T; Mechanical hui k type; Heleuma ponoʻī |
| Ka uhi waho | Epoxy ʻulaʻula / ʻulaʻula a i ʻole ʻeleʻele Bitumen, Zn & Zn-AI Coatings, Metallic Zinc (130 gm/m2 a i ʻole 200 gm/m2 a i ʻole 400 gm/m2 e like me nā koi o ka mea kūʻai aku) e pili ana i nā kūlana ISO, IS, BS EN pili me kahi ka hoʻopau ʻana i ka papa o Epoxy Coating / Black Bitumen (ka liʻiliʻi o ka mānoanoa 70 micron) e like me nā koi o ka mea kūʻai. |
| Ka uhi Kuloko | ʻO ka Lining Cement o OPC/ SRC/ BFSC/ HAC Lining mortar sima e like me ke koi me Portland Cement maʻamau a me Sulphate Resisting Cement e like me nā kūlana IS, ISO, BS EN pili. |
| Ka uhi ʻana | ʻO ka pāpaʻi zinc metala me ka uhi ʻana i ka bituminous (waho) ka lining mortar sima (loko). |
| Palapala noi | Hoʻohana nui ʻia ka Ductile cast iron Pipe no ka hoʻoili ʻana i ka wai ʻino, ka wai inu a no ka irrigation. |
Ekolu Papa Nui o ka Paipu Hao Hoolei
V-2 (papa 40) Hao Haohina, V-3 (65-45-12) Hao Uila, a me V-4 (80-55-06) Hao Uila. Hāʻawi lākou i ka ikaika hoʻopiʻi maikaʻi a me ka hiki ke hoʻoheheʻe haʻalulu kiʻekiʻe.
V-2 (papa 40) Hao Hina, ASTM B48:
He 40,000 PSI ka ikaika o kēia papa me 150,000 PSI. ʻO kona paʻakikī mai ka 187 - 269 BHN. Ua kūpono ʻo V-2 no nā noi ʻaʻahu pololei a loaʻa iā ia ka ikaika kiʻekiʻe, ka paʻakikī, ke kūpaʻa i ka ʻaʻahu a me ka pane mālama wela no ka hao hina ʻole. Hoʻohana nui ʻia ia no ka lawe ʻana a me nā noi bushing i ka ʻoihana hydraulics.
V-3 (65-45-12) Haʻa Uila, ASTM A536:
He 65,000 PSI ka ikaika o kēia māka, ka ikaika o ka 45,000 PSI, me ka elongation 12%. ʻO ka paʻakikī mai ka 131-220 BHN. ʻO kāna hana ferritic maikaʻi e hana ai i ka V-3 i ka maʻalahi maʻalahi o nā māka hao ʻekolu e hana ai i kekahi o nā māka helu ʻoi aku ka maikaʻi o ka machiniability o nā mea ferrous ʻē aʻe; hui pū ʻia me ka hopena maikaʻi loa, luhi, conductivity uila a me nā waiwai permeability magnetic. Hoʻohana mua ʻia ka hao Ductile, ʻoi aku ka nui o nā paipu, no nā laina wai a me nā laina wai. Loaʻa pinepine ʻia kēia metala i nā ʻāpana kaʻa a me nā noi ʻoihana.
V-4 (80-55-06) Haʻa Uila, ASTM A536:
He tensile ikaika kēia māka o 80,000 PSI, ikaika hua o 55,000 PSI a me ka elongation o 6%. ʻO ia ka ikaika kiʻekiʻe loa o nā papa ʻekolu, e like me ke kiola. Hiki ke mālama ʻia kēia papa i ka wela i 100,000 PSI ikaika tensile. Loaʻa iā 10-15% haʻahaʻa haʻahaʻa machiniability ma mua o ka V-3 ma muli o kona ʻano pearlitic. Hoʻohana pinepine ʻia i ka wā e pono ai ke kino kila.
ʻOi aku ka maikaʻi o nā paipu DI ma mua o nā paipu kila / PVC / HDPE
• Mālama pū ʻo DI Pipes i nā kumukūʻai hana ma nā ʻano like ʻole e like me nā kumukūʻai pumping, nā koina paʻi ʻana, a me nā pōʻino mai nā hana ʻē aʻe, e hōʻole ana a me ke kumu kūʻai e hoʻoponopono i ka laulā.
• ʻO nā kumukūʻai ola o DI Pipes kekahi o kāna mau pōmaikaʻi nui loa. No ka mea e mau ana no nā hanauna, ʻoi aku ka maikaʻi o ka hana ʻana, a maʻalahi a hoʻonohonoho pono ʻia a hoʻohana ʻia, ʻoi aku ka haʻahaʻa o kona kumukūʻai lōʻihi a i ʻole ke ola holoʻokoʻa ma mua o nā mea ʻē aʻe.
• He 100% mea hiki ke hana hou ia ka paipu hao ductile.
• Ua lawa ka ikaika e pale aku i nā kūlana koʻikoʻi, mai nā noi kiʻekiʻe, i ka honua kaumaha a me nā ukana kaʻa, i nā kūlana lepo paʻa ʻole.
• He maʻalahi a palekana ka hoʻonohonoho ʻana no nā limahana hiki ke ʻoki a paʻi i ka Ductile Iron Pipe ma ka pūnaewele.
• ʻO ke ʻano metala o Ductile Iron Pipe, ʻo ia ka mea hiki ke loaʻa ka paipu ma lalo o ka lepo me nā mea huli paipu maʻamau.
•Hāʻawi nā paipu DI i ka ikaika tensile kiʻekiʻe ma mua o ke kila māmā a mālama i ke kūpaʻa ʻana o ka corrosion o ka hao.
