Extrudate ena e tla tlosoa ka potlako e baka tahlehelo ea thepa, 'me hang ha thepa e lekaneng e lahlehile, ho hlōleha ha tiiso ho tla latela kapele. Ho na le mekhoa e meraro ea ho thibela sena, ea pele e leng ho fokotsa lits'ebetso tsa ho fokotsa lekhalo la extrusion. Ho hlakile hore sena ke khetho e theko e boima, kahoo tharollo e theko e tlaase ke ho phahamisa durometer ea o-ring. Le hoja durometer o-ring e phahameng e fana ka khanyetso e phahameng ea extrusion, hangata sena ha se tharollo e ka khonehang ka lebaka la ho fumaneha ha thepa, le taba ea hore lisebelisoa tse thata tsa durometer li na le bokhoni bo fokolang ba ho tiisa. Reng ea bekapo ke selikalikoe sa lintho tse thata, tse hananang le extrusion joalo ka high-durometer Nitrile, Viton (FKM), kapa PTFE.
Reng ea bekapo e etselitsoe ho lekana pakeng tsa lesale la o le lekhalo la extrusion le ho thibela ho tsoa ha lesale la o. Ho ipapisitse le tataiso ea khatello ts'ebelisong ea tiiso, o ka sebelisa selikalikoe se le seng sa bekapo kapa mehele e 'meli. Bakeng sa tlhaiso-leseling e batsi kapa ho kopa quote ho li-backup rings, ka kopo ikopanye le rona ka kotloloho romella Sehlahisoa! re ka li rala ho latela lits'oants'o tsa hau kapa disampole tsa mantlha hape!