反壓狀態是不良的工作狀態，介質中的顆粒、雜質很容易進入密封面，使密封失效。磨軸的主要件為橡膠波紋管，且由于上端密封面處于不良潤滑狀態，動靜環之間的摩擦力矩大于橡膠波紋管與軸之間的傳遞轉矩，從而發生相對轉動。動、靜環輔助密封由于受到污水中的弱酸、弱堿的腐蝕，橡膠件已無彈性。渣漿泰山泵用泰山機械密封的工作原理要求泰山機械密封內部無任何雜質，在組裝泰山機械密封前要徹底清掃動環、靜環、軸套等部件，檢查動靜環表面是否存在劃痕、裂紋等缺陷，這些缺陷存在會造成泰山機械密封嚴重漏泄。必要時可以制作工裝在組(zu)裝前水壓(ya)試驗，檢查動靜(jing)環座是否存在影響密封的(de)缺陷。

　　渣漿泰山泵用泰山機械密封由于密封面變形所引起的，而且泰山機械密封面泄漏的概率是很高的。如果泵在啟動時就發生泰山泵用泰山機械密封泄漏，而拆查密封面時看不見有損壞的地方，這時就應該用平晶檢查泰山機械密封的(de)變形(xing)(xing)情況。如果發生變形(xing)(xing)，用平晶檢(jian)查密(mi)封(feng)面的(de)干涉帶的(de)變化(hua)情況，密(mi)封(feng)面變形(xing)(xing)存在于動環(huan)和靜環(huan)之間。

　　壓缸體動(dong)(dong)(dong)態(tai)密(mi)(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)系統(tong)采(cai)用(yong)(yong)的(de)(de)是主密(mi)(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)設計，一(yi)般都用(yong)(yong)U型(xing)密(mi)(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)圈。液壓缸體的(de)(de)往復式動(dong)(dong)(dong)態(tai)密(mi)(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)系統(tong)的(de)(de)設計，開(kai)始(shi)使用(yong)(yong)了更加復雜的(de)(de)U型(xing)圈和(he)(he)(he)同軸(zhou)密(mi)(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)組(zu)件的(de)(de)復合式設計。密(mi)(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)的(de)(de)靜(jing)(jing)環(huan)(huan)通(tong)(tong)常(chang)固(gu)定在殼體上，動(dong)(dong)(dong)環(huan)(huan)通(tong)(tong)過彈簧(huang)、彈簧(huang)座(zuo)與(yu)軸(zhou)一(yi)同旋轉(zhuan)。靜(jing)(jing)環(huan)(huan)與(yu)殼體、動(dong)(dong)(dong)環(huan)(huan)與(yu)軸(zhou)形成(cheng)的(de)(de)間隙用(yong)(yong)成(cheng)型(xing)填(tian)料(liao)密(mi)(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)。在動(dong)(dong)(dong)環(huan)(huan)和(he)(he)(he)靜(jing)(jing)環(huan)(huan)接(jie)觸的(de)(de)端面(mian)(mian)(mian)形成(cheng)相對滑動(dong)(dong)(dong)面(mian)(mian)(mian)，即動(dong)(dong)(dong)密(mi)(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)面(mian)(mian)(mian)。為保證密(mi)(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)良好，動(dong)(dong)(dong)密(mi)(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)面(mian)(mian)(mian)應十分平直和(he)(he)(he)光潔。彈簧(huang)力和(he)(he)(he)被密(mi)(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)的(de)(de)流體壓力使動(dong)(dong)(dong)環(huan)(huan)貼緊(jin)靜(jing)(jing)環(huan)(huan)。因(yin)動(dong)(dong)(dong)環(huan)(huan)與(yu)軸(zhou)通(tong)(tong)過彈簧(huang)連接(jie)，動(dong)(dong)(dong)環(huan)(huan)和(he)(he)(he)靜(jing)(jing)環(huan)(huan)間貼合性(xing)受軸(zhou)的(de)(de)振(zhen)動(dong)(dong)(dong)和(he)(he)(he)擺動(dong)(dong)(dong)影響較小。靜(jing)(jing)環(huan)(huan)一(yi)般常(chang)用(yong)(yong)潤滑性(xing)好的(de)(de)軟質材料(liao)如石墨、填(tian)充聚四氟(fu)乙烯等(deng)，動(dong)(dong)(dong)環(huan)(huan)多(duo)用(yong)(yong)硬質合金、陶瓷等(deng)材料(liao)制造。