Cov yeeb nkab hlau yog ib hom yeeb nkab ua los ntawm cov hlau molten, muaj lub zog siab thiab corrosion kuj. Nws yog dav siv hauv kev tsim kho, kev tsim vaj tsev hauv nroog, kev txuag dej, thiab lwm yam.
Cia peb saib ze dua ntawm lub siab -cov kabmob muaj peev xwm ntawm cov kav dej hlau thiab cov ntaub ntawv ntsig txog.
01.Qhov zoo ntawm cov kav hlau kav hlau
Zoo toughness, siab zog, corrosion kuj, thiab nyias yeeb nkab phab ntsa.
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Nws cov khoom siv tshuab yog nyob ze rau cov kav hlau, thaum nws cov corrosion kuj zoo dua li cov kav hlau.
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Muaj zog adaptability rau tam sim ntawd rog; cov yeeb nkab seem tsis yooj yim khoov lossis deformed thaum siv.
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Cov pob qij txha yooj yooj yim siv, ua rau kev tsim kho yooj yim thiab txo cov nqi ntawm qhov project.
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Cov pob qij txha yooj yooj yim siv, ua rau kev tsim kho yooj yim thiab txo cov nqi ntawm qhov project.
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02.Pressure Ratings of Ductile Iron Pipes
Chav Kawm C ductile hlau kav yog cais raws li qhov ntsuas siab ntawm "Permissible Working Pressure" (PFA).
Cov kav dej C yog cov qauv tshiab tshaj plaws uas tau qhia los ntawm tus txheej txheem thoob ntiaj teb ISO2531 thiab European tus qauv EN545, nrog kev pom zoo kev ntsuas siab ntawm C25, C30, thiab C40, thaum lwm yam kev ntsuas siab kuj tau tso cai. Cov kav dej hauv chav kawm C ntawm tib qhov tshwj xeeb muaj qhov ua haujlwm qis dua li cov kav dej Class K.
C25 qhia txog kev tso cai ua haujlwm siab ntawm 2.5MPa, haum rau cov kav dej dav dav.
C30 qhia txog kev tso cai ua haujlwm siab ntawm 3.0MPa, haum rau cov kav dej loj loj.
C40 qhia txog kev tso cai ua haujlwm siab ntawm 4.0 MPa, haum rau cov kav dej tshwj xeeb.
Nco tseg: Lub siab tso cai nyob rau hauv lub raj xa dej yuav tsum yog qhov ntsuas qis tshaj plaws ntawm tag nrho cov kav dej, fittings thiab accessories hauv cov kav dej.
Cov lus hauv qab no qhia txog kev tso cai rau cov kav dej ntawm qib C25, C30, thiab C40.
| Tso cai siab rau Roj Hmab-Cov kav dej sib txuas | |||
| qib C cev | Tso cai ua haujlwm siab (PFA) | Qhov siab tshaj plaws tso cai ua haujlwm siab (PMA) | Permissible Test Pressure at Site (PEA) |
| bar | bar | bar | |
| 25 | 25 | 30 | 35 |
| 30 | 30 | 36 | 41 |
| 40 | 40 | 48 | 53 |
| Cov kev ntsuas siab tau teev saum toj no tsuas yog qee qhov piv txwv xwb; qhov kev ntsuas siab tsim nyog yuav tsum tau txiav txim siab raws li cov kev xav tau tshwj xeeb ntawm qhov project thiab kev tsim cov kav dej. | |||
Lub siab-cov kabmob muaj peev xwm ntawm cov kav dej hlau yog feem ntau cuam tshuam los ntawm cov khoom xws li cov yeeb nkab phab ntsa tuab, txheej txheem tsim khoom, thiab cov khoom zoo. Feem ntau hais lus, qhov ntau dua cov yeeb nkab phab ntsa thickness, lub zog siab - bearing peev..
Shanxi Jintaihongye Casting & Forging & Machinery Co., Ltd., raws li ib qho ntawm cov ua ductile hlau yeeb nkab manufacturers, nruj me ntsis tswj txhua theem ntau lawm. Thoob plaws hauv cov txheej txheem tsim khoom, ntau yam kev tshuaj xyuas thiab kev tswj xyuas kev tswj xyuas zoo tau ua kom ntseeg tau tias txhua lub kav hlau txuas tau raws li lub teb chaws cov qauv thiab cov kev cai.
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