金屬橢圓墊片由(you)鍛(duan)造及(ji)熱處理和機械加工制成，是(shi)一(yi)種應(ying)(ying)用(yong)(yong)于(yu)油及(ji)氣體(ti)的(de)管法(fa)蘭(lan)，壓(ya)(ya)(ya)力(li)(li)(li)(li)(li)容器，高(gao)(gao)(gao)速接合面(mian)(mian)，高(gao)(gao)(gao)溫高(gao)(gao)(gao)壓(ya)(ya)(ya)閥蓋(gai)等的(de)金屬(shu)(shu)密(mi)(mi)(mi)(mi)(mi)封(feng)墊(dian)(dian)(dian)(dian)片(pian)，尤其壓(ya)(ya)(ya)力(li)(li)(li)(li)(li)、溫度有(you)波動(dong)的(de)場合，仍能保持較好的(de)密(mi)(mi)(mi)(mi)(mi)封(feng)性。 常(chang)用(yong)(yong)的(de)R型(xing)(xing)(xing)(xing)橢(tuo)(tuo)圓(yuan)(yuan)墊(dian)(dian)(dian)(dian)按截面(mian)(mian)分為橢(tuo)(tuo)圓(yuan)(yuan)型(xing)(xing)(xing)(xing)或八角(jiao)型(xing)(xing)(xing)(xing)，標準(zhun)的(de)R型(xing)(xing)(xing)(xing)環(huan)形(xing)墊(dian)(dian)(dian)(dian)片(pian)按API 6A以及(ji)ASME B16.20標準(zhun)尺寸制造，zui高(gao)(gao)(gao)使用(yong)(yong)壓(ya)(ya)(ya)力(li)(li)(li)(li)(li)是(shi)10000PSI。在梯形(xing)槽(cao)法(fa)蘭(lan)中八角(jiao)墊(dian)(dian)(dian)(dian)與橢(tuo)(tuo)圓(yuan)(yuan)墊(dian)(dian)(dian)(dian)可以互換(huan)。RX型(xing)(xing)(xing)(xing)適(shi)用(yong)(yong)于(yu)壓(ya)(ya)(ya)力(li)(li)(li)(li)(li)增強的(de)標準(zhun)R型(xing)(xing)(xing)(xing)環(huan)狀(zhuang)墊(dian)(dian)(dian)(dian)片(pian)，適(shi)合于(yu)R 型(xing)(xing)(xing)(xing)一(yi)樣的(de)法(fa)蘭(lan)槽(cao)密(mi)(mi)(mi)(mi)(mi)封(feng)面(mian)(mian)。BX型(xing)(xing)(xing)(xing)適(shi)用(yong)(yong)于(yu)壓(ya)(ya)(ya)力(li)(li)(li)(li)(li)增強并且設(she)計(ji)應(ying)(ying)用(yong)(yong)高(gao)(gao)(gao)達(da)15000PSI壓(ya)(ya)(ya)力(li)(li)(li)(li)(li)系統(tong)。有(you)多種材(cai)質(zhi)及(ji)形(xing)式(shi)適(shi)用(yong)(yong)于(yu)不同的(de)設(she)計(ji)與操作(zuo)要求(qiu)，參考材(cai)質(zhi)特(te)性表。 注意：選(xuan)用(yong)(yong)橢(tuo)(tuo)圓(yuan)(yuan)墊(dian)(dian)(dian)(dian)材(cai)質(zhi)硬度應(ying)(ying)低于(yu)法(fa)蘭(lan)面(mian)(mian)15~20HB,而且建(jian)議不要重復(fu)使用(yong)(yong)。 橢(tuo)(tuo)圓(yuan)(yuan)墊(dian)(dian)(dian)(dian)片(pian)適(shi)用(yong)(yong)標準(zhun)： ANSI B16.5-1973 、 JPI-75-15-70 、 GB 699 、 GB1220 、 JB755 、 HG20633-97 【金屬(shu)(shu)橢(tuo)(tuo)圓(yuan)(yuan)墊(dian)(dian)(dian)(dian)片(pian)】主要形(xing)式(shi)： R型(xing)(xing)(xing)(xing)，橢(tuo)(tuo)圓(yuan)(yuan)墊(dian)(dian)(dian)(dian)片(pian) 標準(zhun)橢(tuo)(tuo)圓(yuan)(yuan)型(xing)(xing)(xing)(xing)金屬(shu)(shu)環(huan)墊(dian)(dian)(dian)(dian)應(ying)(ying)用(yong)(yong)于(yu)有(you)標準(zhun)凹槽(cao)的(de)法(fa)蘭(lan)。 R型(xing)(xing)(xing)(xing) 八角(jiao)墊(dian)(dian)(dian)(dian) 標準(zhun)八角(jiao)型(xing)(xing)(xing)(xing)金屬(shu)(shu)環(huan)墊(dian)(dian)(dian)(dian)應(ying)(ying)用(yong)(yong)于(yu)有(you)標準(zhun)凹槽(cao)的(de)法(fa)蘭(lan)。 RX型(xing)(xing)(xing)(xing) 八角(jiao)墊(dian)(dian)(dian)(dian)　耐壓(ya)(ya)(ya)可達(da)700bar 此款墊(dian)(dian)(dian)(dian)片(pian)在使用(yong)(yong)時首先用(yong)(yong)外密(mi)(mi)(mi)(mi)(mi)封(feng)面(mian)(mian)與法(fa)蘭(lan)接觸(chu),很(hen)高(gao)(gao)(gao)的(de)系統(tong)壓(ya)(ya)(ya)力(li)(li)(li)(li)(li)會產(chan)生很(hen)高(gao)(gao)(gao)的(de)底座應(ying)(ying)力(li)(li)(li)(li)(li)。 RX型(xing)(xing)(xing)(xing)可以和標準(zhun)R型(xing)(xing)(xing)(xing)互換(huan)。 BX型(xing)(xing)(xing)(xing) 八角(jiao)墊(dian)(dian)(dian)(dian)　耐高(gao)(gao)(gao)壓(ya)(ya)(ya)（可達(da)1500bar） BX型(xing)(xing)(xing)(xing)墊(dian)(dian)(dian)(dian)片(pian)由(you)增強法(fa)蘭(lan)接觸(chu)面(mian)(mian)上的(de)墊(dian)(dian)(dian)(dian)片(pian)底座壓(ya)(ya)(ya)力(li)(li)(li)(li)(li)而產(chan)生的(de)內部系統(tong)壓(ya)(ya)(ya)力(li)(li)(li)(li)(li)進(jin)行(xing)自我密(mi)(mi)(mi)(mi)(mi)封(feng)控制。此款墊(dian)(dian)(dian)(dian)片(pian)適(shi)用(yong)(yong)于(yu)API BX法(fa)蘭(lan)和榫槽(cao)法(fa)蘭(lan)。