套筒(tong)(tong)式補償(chang)器的(de)內(nei)(nei)套筒(tong)(tong)與(yu)(yu)管(guan)(guan)(guan)道(dao)連接,采(cai)用(yong)高性能(neng)(neng)(neng)自(zi)壓式動密封(feng)的(de)原理與(yu)(yu)結構,它可(ke)(ke)以隨著管(guan)(guan)(guan)道(dao)的(de)伸縮(suo)在外殼內(nei)(nei)進行(xing)自(zi)由滑動,能(neng)(neng)(neng)適(shi)應任何管(guan)(guan)(guan)道(dao)的(de)密封(feng)要(yao)求.外殼與(yu)(yu)內(nei)(nei)套筒(tong)(tong)之間采(cai)用(yong)新(xin)型合成(cheng)材料(liao)密封(feng),能(neng)(neng)(neng)耐(nai)高溫,防腐蝕抗老化,適(shi)用(yong)溫度-40至(zhi)150,特(te)殊情況下可(ke)(ke)達(da)350.既能(neng)(neng)(neng)保(bao)證(zheng)(zheng)軸(zhou)向滑動,又能(neng)(neng)(neng)保(bao)證(zheng)(zheng)管(guan)(guan)(guan)內(nei)(nei)介質不泄漏。