1. 管子 大外徑系(xi)列(JIS G3454、JIS G3458、JIS G3459)與ASME大多數相同(tong);無(wu)縫鋼(gang)(gang)(gang)管(guan)公(gong)稱(cheng)直徑:DN6~DN650;用管(guan)子表(biao)號“Sch”表(biao)示壁厚:碳鋼(gang)(gang)(gang)及合金(jin)鋼(gang)(gang)(gang)(JIS G3454、JIS G3458):Sch10、Sch20、Sch30、Sch40、Sch60、Sch80、Sch100、Sch120、Sch140、Sch160;不銹(xiu)鋼(gang)(gang)(gang)(JIS G 3459):Sch5s、Sch10s、Sch20s、Sch40s、Sch80s、Sch120s、Sch160s。焊(han)接鋼(gang)(gang)(gang)管(guan)公(gong)稱(cheng)直徑:DN350~DN2000。
2. 管法(fa)蘭(lan) 管法(fa)蘭(lan)(lan)JIS B2201、JIS B2220等自成體系,既不屬(shu)于“美式(shi)(shi)法(fa)蘭(lan)(lan)”,也(ye)不屬(shu)于“歐(ou)式(shi)(shi)法(fa)蘭(lan)(lan)”。公稱(cheng)直徑(jing):DN10~DN1000;公稱(cheng)壓力(li)等級:2K、5K、10K、16K、20K、30K、40K、63K,其對應的(de)許用壓力(li)值(120℃時的(de))見表16.8。法(fa)蘭(lan)(lan)密封面(mian)形(xing)式(shi)(shi)光滑面(mian)、大凸(tu)臺面(mian)、小凸(tu)臺面(mian)、凹凸(tu)面(mian)、榫(sun)槽(cao)面(mian)5種(zhong)(zhong)。法(fa)蘭(lan)(lan)形(xing)式(shi)(shi)有(you)平焊(han)(han)式(shi)(shi)、承插焊(han)(han)式(shi)(shi)、對焊(han)(han)式(shi)(shi)、螺紋連接式(shi)(shi)、松套(tao)式(shi)(shi)及法(fa)蘭(lan)(lan)蓋6種(zhong)(zhong)。JIS標準(zhun)體系與ASME和(he)DIN等都不能配套(tao)使用。為了(le)彌補這個缺陷,日本石(shi)油學會編制了(le)一套(tao)JPI標準(zhun),它(ta)基本上等效采用了(le)ASME、API標準(zhun)體系,故能與ASME互換。
表16.8 JIS法蘭(lan)標準(zhun)在(zai)120℃時的許用壓(ya)力(li)值
日本標準(zhun)體系JIS中配管(guan)(guan)(guan)設計常用(yong)(yong)(yong)(yong)的管(guan)(guan)(guan)道(dao)材料標準(zhun)有:JIS G3452《普通用(yong)(yong)(yong)(yong)途碳鋼(gang)(gang)管(guan)(guan)(guan)》、JISG 3454《承(cheng)壓(ya)用(yong)(yong)(yong)(yong)碳鋼(gang)(gang)管(guan)(guan)(guan)》、JISG 3455《承(cheng)壓(ya)用(yong)(yong)(yong)(yong)碳鋼(gang)(gang)管(guan)(guan)(guan)》、JISG 3456《高溫用(yong)(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《合金鋼(gang)(gang)管(guan)(guan)(guan)》、JIS G3459《不(bu)(bu)銹(xiu)鋼(gang)(gang)鋼(gang)(gang)管(guan)(guan)(guan)》、JIS G3468《電(dian)弧焊(han)大直(zhi)徑不(bu)(bu)銹(xiu)鋼(gang)(gang)鋼(gang)(gang)管(guan)(guan)(guan)》、JIS B2220《鋼(gang)(gang)制(zhi)管(guan)(guan)(guan)法蘭》、JIS B2302《鋼(gang)(gang)制(zhi)螺紋連(lian)接管(guan)(guan)(guan)件》、JISB2311《普通用(yong)(yong)(yong)(yong)途的鋼(gang)(gang)制(zhi)對(dui)焊(han)管(guan)(guan)(guan)件》、JIS B2312《鋼(gang)(gang)制(zhi)對(dui)焊(han)管(guan)(guan)(guan)件》、JIS B2313《鋼(gang)(gang)板制(zhi)對(dui)焊(han)管(guan)(guan)(guan)件》、JIS B2316《承(cheng)插焊(han)管(guan)(guan)(guan)件》、JIS B2401《O形環》、JIS B2404《管(guan)(guan)(guan)閥蘭用(yong)(yong)(yong)(yong)纏(chan)繞式墊片》、JIS B3453《壓(ya)縮石棉墊片》等。