1. 管子   大(da)外徑(jing)(jing)系列(JIS G3454、JIS G3458、JIS G3459)與(yu)ASME大(da)多數相同;無縫鋼(gang)(gang)管(guan)公稱(cheng)直徑(jing)(jing):DN6~DN650;用管(guan)子表(biao)號“Sch”表(biao)示壁厚:碳(tan)鋼(gang)(gang)及合金鋼(gang)(gang)(JIS G3454、JIS G3458):Sch10、Sch20、Sch30、Sch40、Sch60、Sch80、Sch100、Sch120、Sch140、Sch160;不銹(xiu)鋼(gang)(gang)(JIS G 3459):Sch5s、Sch10s、Sch20s、Sch40s、Sch80s、Sch120s、Sch160s。焊(han)接(jie)鋼(gang)(gang)管(guan)公稱(cheng)直徑(jing)(jing):DN350~DN2000。


  2. 管法蘭   管法蘭(lan)(lan)JIS B2201、JIS B2220等自成體系,既不(bu)屬于“美式(shi)(shi)法蘭(lan)(lan)”,也(ye)不(bu)屬于“歐式(shi)(shi)法蘭(lan)(lan)”。公(gong)稱直徑(jing):DN10~DN1000;公(gong)稱壓力等級(ji):2K、5K、10K、16K、20K、30K、40K、63K,其對應的許用(yong)壓力值(120℃時的)見表16.8。法蘭(lan)(lan)密封面(mian)(mian)形式(shi)(shi)光滑面(mian)(mian)、大(da)凸(tu)臺面(mian)(mian)、小凸(tu)臺面(mian)(mian)、凹(ao)凸(tu)面(mian)(mian)、榫槽面(mian)(mian)5種。法蘭(lan)(lan)形式(shi)(shi)有平焊(han)式(shi)(shi)、承插焊(han)式(shi)(shi)、對焊(han)式(shi)(shi)、螺(luo)紋(wen)連接式(shi)(shi)、松套式(shi)(shi)及(ji)法蘭(lan)(lan)蓋6種。JIS標準(zhun)體系與ASME和DIN等都不(bu)能配套使用(yong)。為了(le)彌補這個缺陷,日本(ben)石油學會編制了(le)一套JPI標準(zhun),它基本(ben)上等效采用(yong)了(le)ASME、API標準(zhun)體系,故(gu)能與ASME互換。


  表16.8 JIS法蘭(lan)標準(zhun)在120℃時的(de)許用壓力值(zhi)


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  日本標準體系JIS中配(pei)管(guan)(guan)(guan)設計常(chang)用(yong)(yong)(yong)的(de)管(guan)(guan)(guan)道材料(liao)標準有:JIS G3452《普通(tong)用(yong)(yong)(yong)途碳鋼(gang)(gang)管(guan)(guan)(guan)》、JISG 3454《承壓用(yong)(yong)(yong)碳鋼(gang)(gang)管(guan)(guan)(guan)》、JISG 3455《承壓用(yong)(yong)(yong)碳鋼(gang)(gang)管(guan)(guan)(guan)》、JISG 3456《高(gao)溫用(yong)(yong)(yong)碳鋼(gang)(gang)管(guan)(guan)(guan)》、JISG3457《電(dian)弧焊(han)碳鋼(gang)(gang)管(guan)(guan)(guan)》、JIS G3458《合金(jin)鋼(gang)(gang)管(guan)(guan)(guan)》、JIS G3459《不(bu)銹(xiu)鋼(gang)(gang)鋼(gang)(gang)管(guan)(guan)(guan)》、JIS G3468《電(dian)弧焊(han)大直徑不(bu)銹(xiu)鋼(gang)(gang)鋼(gang)(gang)管(guan)(guan)(guan)》、JIS B2220《鋼(gang)(gang)制(zhi)(zhi)(zhi)管(guan)(guan)(guan)法蘭(lan)》、JIS B2302《鋼(gang)(gang)制(zhi)(zhi)(zhi)螺紋連(lian)接管(guan)(guan)(guan)件》、JISB2311《普通(tong)用(yong)(yong)(yong)途的(de)鋼(gang)(gang)制(zhi)(zhi)(zhi)對(dui)焊(han)管(guan)(guan)(guan)件》、JIS B2312《鋼(gang)(gang)制(zhi)(zhi)(zhi)對(dui)焊(han)管(guan)(guan)(guan)件》、JIS B2313《鋼(gang)(gang)板制(zhi)(zhi)(zhi)對(dui)焊(han)管(guan)(guan)(guan)件》、JIS B2316《承插焊(han)管(guan)(guan)(guan)件》、JIS B2401《O形環》、JIS B2404《管(guan)(guan)(guan)閥(fa)蘭(lan)用(yong)(yong)(yong)纏繞式(shi)墊片》、JIS B3453《壓縮石棉墊片》等。




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