{"id":830,"date":"2025-03-17T10:14:33","date_gmt":"2025-03-17T02:14:33","guid":{"rendered":"https:\/\/hengoseal.com\/?p=830"},"modified":"2025-03-17T10:14:33","modified_gmt":"2025-03-17T02:14:33","slug":"what-are-o-rings-how-they-work","status":"publish","type":"post","link":"https:\/\/hengoseal.com\/cs\/what-are-o-rings-how-they-work\/","title":{"rendered":"Co jsou O-krou\u017eky a jak funguj\u00ed? (Ultimate O-Ring Guide 2025)"},"content":{"rendered":"

O-krou\u017eky jsou z\u00e1kladn\u00ed t\u011bsnic\u00ed sou\u010d\u00e1sti pou\u017e\u00edvan\u00e9 v hydraulick\u00e9 syst\u00e9my, pneumatick\u00e9 aplikace, automobilov\u00e9 motory a pr\u016fmyslov\u00e9 stroje<\/strong>. V\u00fdb\u011br spr\u00e1vn\u00e9ho O-krou\u017eku zaji\u0161\u0165uje nepropustn\u00fd v\u00fdkon, prodlou\u017een\u00e1 \u017eivotnost a provozn\u00ed \u00fa\u010dinnost<\/strong>.<\/p>\n

V t\u00e9to p\u0159\u00edru\u010dce se budeme zab\u00fdvat jak funguj\u00ed O-krou\u017eky, r\u016fzn\u00e9 vlastnosti materi\u00e1l\u016f, kl\u00ed\u010dov\u00e1 krit\u00e9ria v\u00fdb\u011bru a p\u0159\u00edklady z re\u00e1ln\u00e9ho sv\u011bta<\/strong> kter\u00e9 v\u00e1m pomohou vybrat nejlep\u0161\u00ed O-krou\u017eek pro va\u0161i aplikaci.<\/p>\n


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Co je O-krou\u017eek?<\/strong><\/h2>\n

O-krou\u017eek je a kruhov\u00e9 elastomerov\u00e9 t\u011bsn\u011bn\u00ed<\/strong> navr\u017een\u00fd tak, aby zabr\u00e1nit \u00faniku kapalin a plynu<\/strong> mezi dv\u011bma mechanick\u00fdmi plochami. Je \u0161iroce pou\u017e\u00edv\u00e1n d\u00edky sv\u00e9mu hospod\u00e1rnost, jednoduch\u00e1 instalace a vynikaj\u00edc\u00ed t\u011bsn\u00edc\u00ed vlastnosti<\/strong>.<\/p>\n

Pro\u010d jsou O-krou\u017eky tak \u00fa\u010dinn\u00e9?<\/strong><\/h3>\n

T\u011bsn\u00edc\u00ed schopnost O-krou\u017eku je zalo\u017eena na jeho elastick\u00e1 deformace<\/strong> p\u0159i stla\u010den\u00ed mezi dv\u011bma povrchy. Tato komprese umo\u017e\u0148uje O-krou\u017eku udr\u017eovat t\u011bsn\u00e9 ut\u011bsn\u011bn\u00ed i p\u0159i vysok\u00e9m tlaku a m\u011bn\u00edc\u00edch se teplot\u00e1ch<\/strong>.<\/p>\n


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Pr\u016fvodce materi\u00e1lem O-krou\u017eku: V\u00fdb\u011br spr\u00e1vn\u00e9ho typu<\/strong><\/h2>\n

V\u00fdb\u011br spr\u00e1vn\u00e9ho materi\u00e1lu O-krou\u017eku je z\u00e1sadn\u00ed pro zaji\u0161t\u011bn\u00ed optim\u00e1ln\u00ed t\u011bsnic\u00ed v\u00fdkon<\/strong> za specifick\u00fdch pracovn\u00edch podm\u00ednek.<\/p>\n\n\n\n\n\n\n\n\n
Materi\u00e1l<\/strong><\/th>\nRozsah teplot (\u00b0C)<\/strong><\/th>\nKl\u00ed\u010dov\u00e9 vlastnosti<\/strong><\/th>\nNejlep\u0161\u00ed aplikace<\/strong><\/th>\n<\/tr>\n<\/thead>\n
NBR (Nitril)<\/strong><\/td>\n-40 a\u017e 120<\/td>\nVynikaj\u00edc\u00ed odolnost v\u016f\u010di oleji, n\u00e1kladov\u011b efektivn\u00ed<\/td>\nAutomobilov\u00fd pr\u016fmysl, hydraulick\u00e1 t\u011bsn\u011bn\u00ed<\/td>\n<\/tr>\n
FKM (Viton\u00ae)<\/strong><\/td>\n-20 a\u017e 230<\/td>\nVysok\u00e1 teplotn\u00ed a chemick\u00e1 odolnost<\/td>\nLetectv\u00ed, palivov\u00e9 syst\u00e9my<\/td>\n<\/tr>\n
EPDM<\/strong><\/td>\n-50 a\u017e 150<\/td>\nOdolnost v\u016f\u010di po\u010das\u00ed a oz\u00f3nu<\/td>\nVenkovn\u00ed aplikace, HVAC<\/td>\n<\/tr>\n
PTFE (Teflon\u00ae)<\/strong><\/td>\n-200 a\u017e 260<\/td>\nExtr\u00e9mn\u00ed chemick\u00e1 odolnost<\/td>\nChemick\u00e9 zpracov\u00e1n\u00ed, l\u00e9ka\u0159sk\u00e9<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Jak p\u0159izp\u016fsobit materi\u00e1l O-krou\u017eku va\u0161\u00ed aplikaci<\/strong><\/h3>\n

Chcete-li vybrat nejlep\u0161\u00ed O-krou\u017eek, zva\u017ete teplota, tlak a chemick\u00e1 expozice<\/strong>:<\/p>\n