金屬橢圓墊片由鍛造(zao)及(ji)熱處理和(he)機械加工制(zhi)成，是一(yi)種應(ying)(ying)用(yong)(yong)(yong)于(yu)(yu)(yu)(yu)(yu)油(you)及(ji)氣(qi)體的(de)(de)管法(fa)(fa)蘭(lan)，壓(ya)(ya)(ya)(ya)力(li)(li)容器，高(gao)(gao)(gao)(gao)速接合(he)面(mian)(mian)，高(gao)(gao)(gao)(gao)溫高(gao)(gao)(gao)(gao)壓(ya)(ya)(ya)(ya)閥蓋(gai)等的(de)(de)金屬(shu)(shu)密(mi)封墊(dian)(dian)(dian)(dian)片(pian)(pian)，尤其壓(ya)(ya)(ya)(ya)力(li)(li)、溫度(du)有(you)波動的(de)(de)場(chang)合(he)，仍能保持較(jiao)好的(de)(de)密(mi)封性(xing)。 常用(yong)(yong)(yong)的(de)(de)R型(xing)橢圓墊(dian)(dian)(dian)(dian)按(an)截面(mian)(mian)分為橢圓型(xing)或八角型(xing)，標(biao)(biao)(biao)(biao)準(zhun)(zhun)的(de)(de)R型(xing)環(huan)(huan)(huan)形(xing)墊(dian)(dian)(dian)(dian)片(pian)(pian)按(an)API 6A以及(ji)ASME B16.20標(biao)(biao)(biao)(biao)準(zhun)(zhun)尺寸(cun)制(zhi)造(zao)，zui高(gao)(gao)(gao)(gao)使(shi)用(yong)(yong)(yong)壓(ya)(ya)(ya)(ya)力(li)(li)是10000PSI。在梯形(xing)槽(cao)法(fa)(fa)蘭(lan)中八角墊(dian)(dian)(dian)(dian)與橢圓墊(dian)(dian)(dian)(dian)可以互(hu)換(huan)。RX型(xing)適用(yong)(yong)(yong)于(yu)(yu)(yu)(yu)(yu)壓(ya)(ya)(ya)(ya)力(li)(li)增(zeng)強(qiang)的(de)(de)標(biao)(biao)(biao)(biao)準(zhun)(zhun)R型(xing)環(huan)(huan)(huan)狀墊(dian)(dian)(dian)(dian)片(pian)(pian)，適合(he)于(yu)(yu)(yu)(yu)(yu)R 型(xing)一(yi)樣的(de)(de)法(fa)(fa)蘭(lan)槽(cao)密(mi)封面(mian)(mian)。BX型(xing)適用(yong)(yong)(yong)于(yu)(yu)(yu)(yu)(yu)壓(ya)(ya)(ya)(ya)力(li)(li)增(zeng)強(qiang)并且設計應(ying)(ying)用(yong)(yong)(yong)高(gao)(gao)(gao)(gao)達(da)(da)15000PSI壓(ya)(ya)(ya)(ya)力(li)(li)系(xi)統(tong)。有(you)多(duo)種材(cai)質(zhi)(zhi)及(ji)形(xing)式適用(yong)(yong)(yong)于(yu)(yu)(yu)(yu)(yu)不同的(de)(de)設計與操作要求，參考(kao)材(cai)質(zhi)(zhi)特性(xing)表(biao)。 注意(yi)：選用(yong)(yong)(yong)橢圓墊(dian)(dian)(dian)(dian)材(cai)質(zhi)(zhi)硬度(du)應(ying)(ying)低于(yu)(yu)(yu)(yu)(yu)法(fa)(fa)蘭(lan)面(mian)(mian)15~20HB,而且建議不要重復使(shi)用(yong)(yong)(yong)。 橢圓墊(dian)(dian)(dian)(dian)片(pian)(pian)適用(yong)(yong)(yong)標(biao)(biao)(biao)(biao)準(zhun)(zhun)： ANSI B16.5-1973 、 JPI-75-15-70 、 GB 699 、 GB1220 、 JB755 、 HG20633-97 【金屬(shu)(shu)橢圓墊(dian)(dian)(dian)(dian)片(pian)(pian)】主要形(xing)式： R型(xing)，橢圓墊(dian)(dian)(dian)(dian)片(pian)(pian) 標(biao)(biao)(biao)(biao)準(zhun)(zhun)橢圓型(xing)金屬(shu)(shu)環(huan)(huan)(huan)墊(dian)(dian)(dian)(dian)應(ying)(ying)用(yong)(yong)(yong)于(yu)(yu)(yu)(yu)(yu)有(you)標(biao)(biao)(biao)(biao)準(zhun)(zhun)凹(ao)槽(cao)的(de)(de)法(fa)(fa)蘭(lan)。 R型(xing) 八角墊(dian)(dian)(dian)(dian) 標(biao)(biao)(biao)(biao)準(zhun)(zhun)八角型(xing)金屬(shu)(shu)環(huan)(huan)(huan)墊(dian)(dian)(dian)(dian)應(ying)(ying)用(yong)(yong)(yong)于(yu)(yu)(yu)(yu)(yu)有(you)標(biao)(biao)(biao)(biao)準(zhun)(zhun)凹(ao)槽(cao)的(de)(de)法(fa)(fa)蘭(lan)。 RX型(xing) 八角墊(dian)(dian)(dian)(dian)　耐(nai)(nai)壓(ya)(ya)(ya)(ya)可達(da)(da)700bar 此(ci)款(kuan)墊(dian)(dian)(dian)(dian)片(pian)(pian)在使(shi)用(yong)(yong)(yong)時首先用(yong)(yong)(yong)外(wai)密(mi)封面(mian)(mian)與法(fa)(fa)蘭(lan)接觸(chu),很高(gao)(gao)(gao)(gao)的(de)(de)系(xi)統(tong)壓(ya)(ya)(ya)(ya)力(li)(li)會產(chan)生很高(gao)(gao)(gao)(gao)的(de)(de)底座(zuo)應(ying)(ying)力(li)(li)。 RX型(xing)可以和(he)標(biao)(biao)(biao)(biao)準(zhun)(zhun)R型(xing)互(hu)換(huan)。 BX型(xing) 八角墊(dian)(dian)(dian)(dian)　耐(nai)(nai)高(gao)(gao)(gao)(gao)壓(ya)(ya)(ya)(ya)（可達(da)(da)1500bar） BX型(xing)墊(dian)(dian)(dian)(dian)片(pian)(pian)由增(zeng)強(qiang)法(fa)(fa)蘭(lan)接觸(chu)面(mian)(mian)上的(de)(de)墊(dian)(dian)(dian)(dian)片(pian)(pian)底座(zuo)壓(ya)(ya)(ya)(ya)力(li)(li)而產(chan)生的(de)(de)內(nei)部系(xi)統(tong)壓(ya)(ya)(ya)(ya)力(li)(li)進行(xing)自我密(mi)封控制(zhi)。此(ci)款(kuan)墊(dian)(dian)(dian)(dian)片(pian)(pian)適用(yong)(yong)(yong)于(yu)(yu)(yu)(yu)(yu)API BX法(fa)(fa)蘭(lan)和(he)榫槽(cao)法(fa)(fa)蘭(lan)。