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ating p art sCOPYRIGHT (20 0 1) EA T ON CORPORA T IONCA housing pro vides rigidity andalignment during in st allationThe lip for ms the seal, pre ssureforces the lip tighter ar ound the shaf tto aid in pr oviding a leak free sealS pr ings and backup r ings provide sealing under no load cond itionsFigur e 422 L ip seals are used in rot ating shaf t sCOPYR I G HT (2 001 ) E A T ON CO RPO RA TIONCCu p s e al s a rePr es s u re ac t ua te dBa c ki ng pl at e a nd re t a i ne rs c la m p cu p s i n po s it io nPr es s u rePr es s u reFi gu re 4 2 3 C up s e a ls a re u se d o n c y li nd e r p is to n sC OP Y RI GH T (2 00 1) E A T O N C O RP O R A T IO NCS te el pis to n se alsFig ur e 42 4 P ist on rin gs a re u se d for c ylin de r p isto nsCO P YR IG H T (200 1) E A T O N CO RP OR A TIO NCSup por t RingPac kingGland Follow er Ri ngThr eaded, flange d andspr ing load ed fo llower sFigur e 425 Com press ion p acki ngsCOP YRI GHT (2022) EA T O N CO RPO RA TIONCW ave wa sher pro vides spr ingtensio n to force st ation ar y face aga inst rot ating faceHous ingOring pro vides st atic sea lBea rin gThis p ar t of seal ro t ates with sh af tThis p ar t of the sealrema ins st ation er y inthe h ousin gFigu re 4 26 Face seals for high pre ssure sealin g of ro t ating shaf tCOP YR I G HT (2 001 ) E A T O N CORP ORA TIONCF ig u r e 4 27 B a c k m o u n t in g l e a v e s c o n n e c t io n s u n d is t u r b e dCOPYR IGHT (20 01) EA T ON CO RPO RA TIONCF ig u r e 4 28 D r ille d m a n if o ld s c o n t a in i n t e r c o n n e c t in g p a s s a g e s t o e lim in a t e p ip in g b e t w e e n v a lv e sCOP YRIG HT (20 01) EA T ON CO RP ORA TI O