{"id":3075,"date":"2020-09-10T18:17:29","date_gmt":"2020-09-10T16:17:29","guid":{"rendered":"https:\/\/www.korad-radiators.sk\/?p=3075"},"modified":"2023-01-28T18:21:33","modified_gmt":"2023-01-28T17:21:33","slug":"faq","status":"publish","type":"post","link":"https:\/\/www.korad-radiators.sk\/ru\/faq\/","title":{"rendered":"FAQ – \u010casto kladen\u00e9 ot\u00e1zky"},"content":{"rendered":"\r\n

1. Maj\u00fa radi\u00e1tory vn\u00fatorn\u00fa ochranu vo\u010di kor\u00f3zii a ak\u00e1 je ich \u017eivotnos\u0165?<\/h2>\r\n\r\n\r\n\r\n

Panelov\u00e9 radi\u00e1tory maj\u00fa kvalitn\u00fa vonkaj\u0161iu povrchov\u00fa ochranu, \u017eiadne z nich v\u0161ak nemaj\u00fa \u0161peci\u00e1lne chr\u00e1nen\u00fd vn\u00fatorn\u00fd povrch. Ochrana vn\u00fatorn\u00e9ho povrchu je zabezpe\u010den\u00e1 vodou vo vykurovacom okruhu. Kysl\u00edk obsiahnut\u00fd vo vode zreaguje s oce\u013eov\u00fdm povrchom za vzniku ur\u010dit\u00e9ho mno\u017estva kor\u00f3zie. Po ukon\u010den\u00ed kor\u00f3znych reakci\u00ed je v okruhu spotrebovan\u00fd v\u0161etok kysl\u00edk a kor\u00f3zny proces sa zastav\u00ed. Je ve\u013emi d\u00f4le\u017eit\u00e9 aby sa syst\u00e9m dal bez probl\u00e9mov odvzdu\u0161ni\u0165 a zbyto\u010dne nedoch\u00e1dzalo k op\u00e4tovn\u00e9mu nap\u00fa\u0161\u0165aniu a vyp\u00fa\u0161\u0165aniu okruhu. \u017divotnos\u0165 oce\u013eov\u00fdch radi\u00e1torov \u00fazko s\u00favis\u00ed s jeho spr\u00e1vnym n\u00e1vrhom a prev\u00e1dzkovan\u00edm. Aby bola \u010do najvy\u0161\u0161ia jednozna\u010dne doporu\u010dujeme in\u0161tal\u00e1ciu uzavret\u00fdch syst\u00e9mov bez rizika zan\u00e1\u0161ania kysl\u00edka a ostatn\u00fdch vzdu\u0161n\u00fdch plynov do okruhu. Pri spr\u00e1vnom prev\u00e1dzkovan\u00ed dosahuje \u017eivotnos\u0165 oce\u013eov\u00fdch radi\u00e1torov 30 a viac rokov.<\/p>\r\n\r\n\r\n\r\n

2. M\u00f4\u017eu sa panelov\u00e9 radi\u00e1tory in\u0161talova\u0165 v k\u00fape\u013eniach?<\/h2>\r\n\r\n\r\n\r\n

Be\u017en\u00e9 oce\u013eov\u00e9 panelov\u00e9 radi\u00e1tory nie s\u00fa ur\u010den\u00e9 do vlhk\u00e9ho prostredia. Ich kor\u00f3zna odolnos\u0165 pri vlhkosti prostredia nad 70% sa v\u00fdrazne zni\u017euje. Za t\u00fdmto \u00fa\u010delom boli preto vyvinut\u00e9 pozinkovan\u00e9 radi\u00e1tory<\/a>. Svoj\u00edm vzh\u013eadom sa tieto radi\u00e1tory nijako neodli\u0161uj\u00fa od be\u017enej produkcie. Elektrolyticky nanesen\u00e1 vrstva zinku je ukryt\u00e1 pod polyesterov\u00fdm n\u00e1terom odtie\u0148a RAL 9016. Sortiment je vzh\u013eadom na dosiahnutie maxim\u00e1lnej kor\u00f3znej odolnosti z\u00fa\u017een\u00fd na modely bez konvektorov\u00fdch plechov. Podrobnej\u0161ie inform\u00e1cie o pozinkovan\u00fdch radi\u00e1toroch n\u00e1jdete v sekcii V\u00fdrobky.<\/p>\r\n\r\n\r\n\r\n

3. Ako zabezpe\u010di\u0165 vykurovac\u00ed syst\u00e9m pred zamrznut\u00edm?<\/h2>\r\n\r\n\r\n\r\n

V pr\u00edpade, \u017ee nechceme alebo nem\u00f4\u017eeme vykurovac\u00ed syst\u00e9m pou\u017e\u00edva\u0165 po\u010das celej vykurovacej sez\u00f3ny a z ekonomick\u00fdch d\u00f4vodov ho ani nechceme temperova\u0165, je potrebn\u00e9 naplni\u0165 tento syst\u00e9m nemrzn\u00facou zmesou. Existuj\u00fa nemrzn\u00face zmesi ur\u010den\u00e9 pr\u00e1ve na tento \u00fa\u010del ako napr\u00edklad Alycol Termo, Fridex EKO, Flamix Termo a podobne. Otvoren\u00fd syst\u00e9m napln\u00edme t\u00fdmito pr\u00edpravkami jednoducho cez expanzn\u00fa n\u00e1dobu. Uzavret\u00e9 syst\u00e9my je mo\u017en\u00e9 naplni\u0165 po \u010diasto\u010dnom alebo \u00faplnom vypusten\u00ed okruhu napr\u00edklad cez najvy\u0161\u0161\u00ed bod (automatick\u00fd odvzdu\u0161\u0148ovac\u00ed ventil alebo priamo do vykurovacieho telesa). D\u00f4le\u017eit\u00e9 je zachova\u0165 predp\u00edsan\u00fd pomer vody a nemrzn\u00facej zmesi a po doplnen\u00ed necha\u0165 be\u017ea\u0165 \u010derpadlo okruhu dostato\u010dne dlh\u00fd \u010das, aby sa zabezpe\u010dilo dokonal\u00e9 premie\u0161anie. Pri naplnen\u00ed syst\u00e9mu nemrzn\u00facou zmesou je potrebn\u00e9 po\u010d\u00edta\u0165 so zn\u00ed\u017een\u00edm tepeln\u00e9ho v\u00fdkonu radi\u00e1torov v d\u00f4sledku poklesu \u0161pecifickej tepelnej kapacity vykurovacej vody. Orienta\u010dn\u00e9 hodnoty n\u00e1jdete v nasledovnej tabu\u013eke.<\/p>\r\n\r\n\r\n\r\n

\"\"<\/figure>\r\n\r\n\r\n\r\n

4. V \u010dom je probl\u00e9m ak radi\u00e1tor nehreje alebo je tepl\u00fd iba z \u010dasti?<\/h2>\r\n\r\n\r\n\r\n

Pr\u00ed\u010din tohto javu m\u00f4\u017ee by\u0165 viacero. Prvou z nich je predimenzovan\u00e9 vykurovacie teleso. St\u00e1va sa to pri zlom odhade tepeln\u00fdch str\u00e1t, pr\u00edpadne ak do\u0161lo k zmene tepelnoizola\u010dn\u00fdch vlastnost\u00ed kon\u0161trukcie (zateplenie). In\u0161talovan\u00e9 teleso v tomto pr\u00edpade mus\u00ed doda\u0165 podstatne menej tepla ne\u017e je schopn\u00e9. Je to podobn\u00e9 ako pomal\u00e1 jazda na v\u00fdkonnom aute. T\u00fato pr\u00ed\u010dinu m\u00f4\u017eeme vyl\u00fa\u010di\u0165 v pr\u00edpade, \u017ee vo vykurovanom priestore je pri slabom ohreve telesa chladno. Pravdepodobnou pr\u00ed\u010dinou je nedostato\u010dn\u00fd prietok, ktor\u00fd m\u00f4\u017ee vypl\u00fdva\u0165 bu\u010f z nespr\u00e1vnej in\u0161tal\u00e1cie radi\u00e1tora (dlh\u00e1 odbo\u010dka od z\u00e1kladnej vetvy) alebo zl\u00e9ho prednastavenia termostatick\u00e9ho ventilu. V ka\u017edom pr\u00edpade sa obr\u00e1\u0165te na spr\u00e1vcu alebo firmu.<\/p>\r\n\r\n\r\n\r\n

5. \u010co je pr\u00ed\u010dinou hluku v radi\u00e1toroch?<\/h2>\r\n\r\n\r\n\r\n

Vykurovacia s\u00fastava b\u00fdva \u010dasto zdrojom hluku, ktor\u00fd m\u00e1 r\u00f4zne podoby a teda aj r\u00f4zne pr\u00ed\u010diny vzniku. Takmer nikdy ale samotnou pr\u00ed\u010dinou hluku nie je vykurovacie teleso.
Pokia\u013e sa jedn\u00e1 o zvuk podobn\u00fd \u0161pliechaniu<\/strong>, resp. \u017eblnkaniu<\/strong> vody, p\u00f4jde pravdepodobne o zl\u00e9 odvzdu\u0161nenie radi\u00e1tora. Ka\u017ed\u00fd radi\u00e1tor by mal by\u0165 vybaven\u00fd vlastnou odvzdu\u0161\u0148ovacou z\u00e1tkou a by\u0165 vhodne sp\u00e1dovan\u00fd. Odvzdu\u0161nenie m\u00e1 by\u0165 na najvy\u0161\u0161om mieste, na opa\u010dnej strane ako ventil. V star\u0161\u00edch syst\u00e9moch je odvzdu\u0161nenie radi\u00e1torov rie\u0161en\u00e9 opa\u010dn\u00fdm usporiadan\u00edm telies to znamen\u00e1, \u017ee najvy\u0161\u0161ie miesto je v mieste napojenia – pri ventile. Vzduch tak m\u00e1 mo\u017enos\u0165 unika\u0165 do st\u00fapa\u010dky a opusti\u0165 s\u00fastavu na najvy\u0161\u0161om mieste. Nov\u00e9 regula\u010dn\u00e9 ventily riaden\u00e9 termostatick\u00fdmi hlavicami tvoria vzduchu zvy\u010dajne v\u00e4\u010d\u0161iu prek\u00e1\u017eku ako klasick\u00e9 uzatv\u00e1racie ventily. Pri v\u00e4\u010d\u0161om objeme vzduchu v telese, napr\u00edklad pri op\u00e4tovnom napusten\u00ed po oprave, je potom odplynenie dos\u0165 zd\u013ahav\u00e9 a \u010dasto nie 100 % \u00faspe\u0161n\u00e9. Pom\u00f4c\u0165 si m\u00f4\u017eeme \u010diasto\u010dn\u00fdm uvo\u013enen\u00edm z\u00e1vitu ventilu a t\u00fdm vypusten\u00edm uv\u00e4znen\u00e9ho vzduchu. Odvzdu\u0161nenie telies nie je dobr\u00e9 zanedba\u0165. Okrem poklesu tepeln\u00e9ho v\u00fdkonu hroz\u00ed i zv\u00fd\u0161en\u00e9 riziko kor\u00f3zie.<\/p>\r\n\r\n\r\n\r\n

Sp\u00f4sob odvzdu\u0161nenia radi\u00e1torov:<\/p>\r\n\r\n\r\n\r\n

    \r\n
  1. do st\u00fapa\u010dky<\/li>\r\n
  2. cez odvzdu\u0161\u0148ovacie ventily<\/li>\r\n<\/ol>\r\n\r\n\r\n\r\n

    \u0160umenie<\/strong> a\u017e sy\u010danie<\/strong> sa vyskytuje ve\u013emi \u010dasto. Je sp\u00f4sobovan\u00e9 vysok\u00fdm rozdielom tlaku na regula\u010dn\u00fdch ventiloch. Ventily uzatv\u00e1raj\u00fa prietok vody do radi\u00e1torov v z\u00e1vislosti od nastavenia termostatick\u00fdch hlav\u00edc. Pri uzatv\u00e1ran\u00ed ventilov doch\u00e1dza k zmen\u0161ovaniu prierezu prietoku a t\u00fdm aj k n\u00e1rastu rozdielu tlaku pred a za ventilmi. Zvy\u0161uje sa t\u00fdm r\u00fdchlos\u0165 pr\u00fadenia kvapaliny cez ventil. Spr\u00e1vne navrhnut\u00e1 s\u00fastava mus\u00ed na tak\u00e9to tlakov\u00e9 zmeny reagova\u0165 a vyrovn\u00e1va\u0165 tlakov\u00e9 rozdiely cez regula\u010dn\u00e9 armat\u00fary na st\u00fapa\u010dk\u00e1ch. Pokia\u013e tomu tak nie je, vznik\u00e1 nepr\u00edjemn\u00fd sykav\u00fd zvuk, ktor\u00fd najm\u00e4 v no\u010dn\u00fdch hodin\u00e1ch m\u00f4\u017ee p\u00f4sobi\u0165 ve\u013emi nepr\u00edjemne a ru\u0161ivo. Hluk sa m\u00f4\u017ee e\u0161te zintenz\u00edvni\u0165 v pr\u00edpade, \u017ee vykurovacia voda obsahuje vzduchov\u00e9 bubliny. Niekedy posta\u010d\u00ed v\u00e4\u010d\u0161ie pootvorenie ventilu, inokedy hluk nezmizne ani pri jeho maxim\u00e1lnom otvoren\u00ed. Na odstr\u00e1nenie tohto javu je nutn\u00fd z\u00e1sah odborn\u00edka, mnohokr\u00e1t je potrebn\u00e1 zmena syst\u00e9mu vyrovn\u00e1vania diferen\u010dn\u00e9ho tlaku.<\/p>\r\n\r\n\r\n\r\n

    Klepanie<\/strong>, \u0165ukanie<\/strong> \u010di v\u0155zganie<\/strong> s\u00fa zvuky, ktor\u00e9 naj\u010dastej\u0161ie sp\u00f4sobuje tepeln\u00e1 dilat\u00e1cia pr\u00edvodn\u00e9ho potrubia. Potrubie sa pri ohreve roz\u0165ahuje a pokia\u013e s\u00fa priechody medzi jednotliv\u00fdmi poschodiami resp. miestnos\u0165ami zamurovan\u00e9, bez mo\u017enosti vo\u013en\u00e9ho pohybu potrubia vznik\u00e1 nap\u00e4tie, ktor\u00e9 v kone\u010dnom d\u00f4sledku sp\u00f4sobuje hluk. To sa deje na st\u00fapa\u010dk\u00e1ch alebo aj odbo\u010dk\u00e1ch pre pripojenie jednotliv\u00fdch telies. Tu vznik\u00e1 zmena teploty m\u00e9dia vplyvom otv\u00e1rania a uzatv\u00e1rania ventilu po\u010das regul\u00e1cie. N\u00e1prava neb\u00fdva jednoduch\u00e1. U\u017e po\u010das stavebn\u00fdch pr\u00e1c je potrebn\u00e9 po\u010d\u00edta\u0165 s dilat\u00e1ciou potrubia a umo\u017eni\u0165 mu vo\u013en\u00fd pohyb. Dodato\u010dn\u00e9 rie\u0161enie situ\u00e1cie spo\u010d\u00edva v lokaliz\u00e1cii probl\u00e9mov\u00fdch miest a n\u00e1slednom vyb\u00faran\u00ed pevn\u00fdch ulo\u017een\u00ed potrub\u00ed a vyplnen\u00ed ich pru\u017en\u00fdm ulo\u017een\u00edm. V pr\u00edpade radi\u00e1torov je \u010diasto\u010dn\u00fdm rie\u0161en\u00edm pou\u017eitie z\u00e1vesn\u00fdch konzol dovo\u013euj\u00facich pohyb vo vodorovnom smere.<\/p>\r\n\r\n\r\n\r\n

    P\u00edskanie<\/strong> alebo klepotanie<\/strong> m\u00f4\u017ee by\u0165 prejavom chyby v napojen\u00ed radi\u00e1tora. St\u00e1va sa to pri opa\u010dnom pripojen\u00ed radi\u00e1torov typu Ventil Kompakt (VK). K z\u00e1mene pr\u00edvodu a spiato\u010dky m\u00f4\u017ee \u013eahko d\u00f4js\u0165 hlavne pri s\u00fa\u010dasnej in\u0161tal\u00e1cii radi\u00e1torov s prav\u00fdm a \u013eav\u00fdm pripojen\u00edm na jednej vetve. Poz\u00edcia pr\u00edvodu a spiato\u010dky sa zrkadlovo men\u00ed. V\u0161eobecne plat\u00ed z\u00e1sada, \u017ee spiato\u010dka sa nach\u00e1dza v\u017edy bli\u017e\u0161ie k bo\u010dnej hrane radi\u00e1tora. Pri opa\u010dnom pripojen\u00ed voda vstupuje do integrovanej regula\u010dnej vlo\u017eky z opa\u010dnej strany, \u010do m\u00e1 za n\u00e1sledok rozkmitanie ku\u017ee\u013eky ventilu spojenej so zvukov\u00fdmi efektmi. Intenzita a charakter zvukov\u00e9ho prejavu chyby sa men\u00ed v z\u00e1vislosti od prietokov\u00e9ho mno\u017estva a pracovn\u00e9ho tlaku v s\u00fastave. Opa\u010dn\u00e9 pripojenie ma z\u00e1rove\u0148 negat\u00edvny dopad na tepeln\u00fd v\u00fdkon, ktor\u00fd poklesne pribli\u017ene o jednu tretinu.<\/p>\r\n\r\n\r\n\r\n

    6. Ak\u00fa vodu pou\u017ei\u0165 pre vykurovac\u00ed syst\u00e9m?<\/h2>\r\n\r\n\r\n\r\n

    Ot\u00e1zka na po\u017eadovan\u00e9 vlastnosti vykurovacej vody je kladen\u00e1 ve\u013emi \u010dasto. Kvalita vody ovplyv\u0148uje chod a \u017eivotnos\u0165 cel\u00e9ho vykurovacieho syst\u00e9mu. V\u00e4\u010d\u0161inou sa ako plniace m\u00e9dium pou\u017e\u00edva pitn\u00e1 voda. To, \u017ee je voda klasifikovan\u00e1 ako pitn\u00e1 ale nezaru\u010duje jej vhodnos\u0165 pre vykurovacie syst\u00e9my. D\u00f4le\u017eit\u00fdmi parametrami s\u00fa tvrdos\u0165, kyslos\u0165, obsah sol\u00ed a rozpusten\u00fdch plynov.<\/p>\r\n\r\n\r\n\r\n

    Tvrdos\u0165<\/strong> vody s\u00favis\u00ed s geologick\u00fdm podlo\u017e\u00edm a p\u00f4dnymi pomermi. Vo vy\u0161\u0161\u00edch poloh\u00e1ch s \u017eulov\u00fdm podkladom b\u00fdva voda m\u00e4k\u0161ia, v ni\u017e\u0161\u00edch poloh\u00e1ch v\u010faka v\u00e1pencov\u00fdm hornin\u00e1m naopak tvrd\u0161ia. Tvrdos\u0165 vody n\u00e1m ur\u010duje mno\u017estvo v\u00e1penat\u00fdch a hore\u010dnat\u00fdch sol\u00ed obsiahnut\u00fdch vo vode. Po\u010das prev\u00e1dzky syst\u00e9mu pr\u00e1ve tieto soli tvoria na teplo v\u00fdmenn\u00fdch ploch\u00e1ch kotlov nerozpustn\u00e9 uhli\u010ditany – vodn\u00fd kame\u0148. Zvy\u010dajne sa jedn\u00e1 o kotlov\u00e9 v\u00fdmenn\u00edky. Vrstva vodn\u00e9ho kame\u0148a m\u00f4\u017ee na t\u00fdchto ploch\u00e1ch narasta\u0165 a po \u010dase doch\u00e1dza k jeho odlupovaniu a rozn\u00e1\u0161aniu do syst\u00e9mu, kde sp\u00f4sobuje upchanie jednotliv\u00fdch armat\u00far. V\u00fdsledkom je nielen pokles v\u00fdkonu kotla ale aj postupn\u00e9 vyradenie regula\u010dn\u00fdch armat\u00far z \u010dinnosti. Navy\u0161e sa pri tvorbe vodn\u00e9ho kame\u0148a uvo\u013e\u0148uje do vody oxid uhli\u010dit\u00fd, ktor\u00fd p\u00f4sob\u00ed koroz\u00edvne a z\u00e1rove\u0148 obohacuje s\u00fastavu o ne\u017eiaduce plyny. Tak\u00fato s\u00fastavu je nutn\u00e9 neust\u00e1le dop\u013a\u0148a\u0165 o \u010fal\u0161iu vodu. Tento cyklus dopl\u0148ovania a zan\u00e1\u0161ania syst\u00e9mu vodn\u00fdm kame\u0148om sa kon\u010d\u00ed upchan\u00edm v\u00fdmenn\u00edka, resp. ventilov.<\/p>\r\n\r\n\r\n\r\n

    Tvrdos\u0165 vody sa ur\u010duje napr\u00edklad v nemeckej stupnici tvrdosti (\u00b0d alebo dH\u00b0). Na baleniach prac\u00edch pr\u00e1\u0161kov je \u010dasto rozdelen\u00e1 na 4 stupne:<\/p>\r\n\r\n\r\n\r\n

    \r\n\r\n\r\n\r\n\r\n\r\n\r\n
    1<\/th>\r\n0 – 7 \u00b0d<\/td>\r\nm\u00e4kk\u00e1<\/td>\r\n<\/tr>\r\n
    2<\/th>\r\n7 – 14 \u00b0d<\/td>\r\nstredne tvrd\u00e1<\/td>\r\n<\/tr>\r\n
    3<\/th>\r\n14 – 21 \u00b0d<\/td>\r\ntvrd\u00e1<\/td>\r\n<\/tr>\r\n
    4<\/th>\r\nnad 21 \u00b0d<\/td>\r\nve\u013emi tvrd\u00e1<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<\/figure>\r\n\r\n\r\n\r\n

    Tvrdos\u0165 u n\u00e1s na Slovensku sa pohybuje zvy\u010dajne od 5 \u00b0d po 35 \u00b0d.<\/p>\r\n\r\n\r\n\r\n

    Pre vykurovacie syst\u00e9my sa hod\u00ed voda s tvrdos\u0165ou nepresahuj\u00facou 5,6 \u00b0d. Pre porovnanie mo\u017eno uvies\u0165 in\u00e9 odpovedaj\u00face jednotky:<\/p>\r\n\r\n\r\n\r\n

    \r\n\r\n\r\n\r\n\r\n
    Nemeck\u00fd \u00b0d<\/th>\r\nFranc\u00fazsky \u00b0f<\/th>\r\nAnglick\u00fd \u00b0e<\/th>\r\nAmerick\u00fd gr \/ gal<\/th>\r\nmmol \/ liter<\/th>\r\n<\/tr>\r\n
    5,6<\/td>\r\n10,0<\/td>\r\n7,0<\/td>\r\n5,8<\/td>\r\n1,0<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<\/figure>\r\n\r\n\r\n\r\n

    Hodnotu tvrdosti vody by v\u00e1m mal poskytn\u00fa\u0165 aj v\u00e1\u0161 dod\u00e1vate\u013e pitnej vody. Je ale ot\u00e1zne, nako\u013eko hodnovern\u00fd \u00fadaj od neho dostanete. Preto je istej\u0161ie v\u017edy premera\u0165 tvrdos\u0165 pou\u017e\u00edvanej vody priamo na mieste. Tvrdos\u0165 vody mo\u017eno zmera\u0165 orienta\u010dne napr\u00edklad pomocou testovac\u00edch s\u00e1d pre akvaristov. Tie m\u00f4\u017eu by\u0165 zalo\u017een\u00e9 na indika\u010dn\u00fdch papierikoch alebo na \u0161peci\u00e1lnych pr\u00edpravkoch (metyloran\u017e), ktor\u00e9 sa prid\u00e1vaj\u00fa do vzorky tekutiny po kvapk\u00e1ch dovtedy, k\u00fdm nezmen\u00ed farbu. Ka\u017ed\u00e1 kvapka predstavuje napr\u00edklad 1\u00b0d. Samotn\u00fa \u00fapravu vody v\u0161ak odpor\u00fa\u010dame necha\u0165 na \u0161pecialistov. Je to v\u017edy lacnej\u0161ie ako nesk\u00f4r plati\u0165 za odstra\u0148ovanie vzniknut\u00fdch \u0161k\u00f4d na syst\u00e9me.<\/p>\r\n\r\n\r\n\r\n

    V\u00fdznamn\u00fd faktor ovplyv\u0148uj\u00faci kor\u00f3znu odolnos\u0165 vykurovacieho syst\u00e9mu je kyslos\u0165 – pH<\/strong>. V\u010faka nest\u00e1losti chemick\u00fdch v\u00e4zieb vody sa m\u00f4\u017ee za ur\u010dit\u00fdch podmienok meni\u0165 jej chemick\u00e9 zlo\u017eenie a t\u00fdm aj jej kyslos\u0165. Neutr\u00e1lna voda m\u00e1 hodnotu pH = 7. \u010c\u00edm ni\u017e\u0161ia hodnota pH t\u00fdm je voda kyslej\u0161ia a naopak, \u010d\u00edm vy\u0161\u0161ia hodnota pH t\u00fdm je viac z\u00e1sadit\u00e1. Pre vykurovaciu vodu je potrebn\u00e9 nastavi\u0165 hodnotu pH pod\u013ea odolnosti pou\u017eit\u00fdch materi\u00e1lov vo vykurovacom syst\u00e9me. Hodnotu pH mo\u017eno zmera\u0165 napr. pomocou indika\u010dn\u00fdch papierikov.<\/p>\r\n\r\n\r\n\r\n

    \"\"<\/figure>\r\n\r\n\r\n\r\n

    Napriek tomu, \u017ee pre syst\u00e9m s r\u00f4znymi materi\u00e1lmi ako oce\u013e a me\u010f zvol\u00edme pH, ktor\u00e9 je z h\u013eadiska kor\u00f3znych procesov \u010do naj\u0161etrnej\u0161ie, m\u00f4\u017ee d\u00f4js\u0165 napr\u00edklad ku elektrochemickej kor\u00f3zii. T\u00e1 je vyvolan\u00e1 vysok\u00fdm obsahom sol\u00ed vo vode ozna\u010dovanej tie\u017e ako so\u013enos\u0165<\/strong>. So\u013enos\u0165ou, \u010di lep\u0161ie povedan\u00e9 mineraliz\u00e1ciou<\/strong> sa vyjadruje s\u00fa\u010det v\u0161etk\u00fdch sol\u00ed rozpusten\u00fdch vo vode. Jedn\u00e1 sa predov\u0161etk\u00fdm o kati\u00f3ny Na+<\/sup>, K+<\/sup>, Fe+<\/sup> a ani\u00f3ny Cl–<\/sup>, SO4<\/sub>2-<\/sup>.

    Ich obsah vo vode sa d\u00e1 \u0161pecifikova\u0165 vodivos\u0165ou. Vodivos\u0165<\/strong> (obsah i\u00f3nov) je ud\u00e1van\u00e1 v \u00b5S (mikrosiemens) a je merate\u013en\u00e1 konduktometrom. Pre vykurovacie syst\u00e9my je vhodn\u00e1 voda s vodivos\u0165ou do 0,5 \u00b5S \/ cm.<\/p>\r\n\r\n\r\n\r\n

    Plyny<\/strong> sa vyskytuj\u00fa vo vode rozpusten\u00e9. Vo vykurovacej vode sa jedn\u00e1 predov\u0161etk\u00fdm o dus\u00edk, kysl\u00edk a oxid uhli\u010dit\u00fd. Obsah rozpusten\u00fdch plynov vo vode z\u00e1vis\u00ed od jej teploty a tlaku. Rozpustnos\u0165 kles\u00e1 s narastaj\u00facou teplotou a klesaj\u00facim tlakom. Tento jav je zrejm\u00fd pri otvoren\u00ed f\u013ea\u0161e s\u00fdten\u00e9ho n\u00e1poja. N\u00e1hly pokles tlaku sp\u00f4sob\u00ed objavenie sa bubliniek oxidu uhli\u010dit\u00e9ho, ktor\u00e9 boli a\u017e do tejto chv\u00edle rozpusten\u00e9 vo vode. V pr\u00edrode voda pri atmosf\u00e9rickom tlaku be\u017ene obsahuje rozpusten\u00e9 plyny a to kysl\u00edk a\u017e do 11 mg \/ l a dus\u00edk 18 mg \/ l. Dus\u00edk je s\u00edce inertn\u00fd plyn, ale jeho v\u00e4\u010d\u0161ie mno\u017estvo v syst\u00e9me vedie k poruch\u00e1m cirkul\u00e1cie. Bezprobl\u00e9mov\u00e9 koncentr\u00e1cie dus\u00edka vo vode musia by\u0165 ni\u017e\u0161ie ako 15 mg \/ l. Pre vykurovac\u00ed syst\u00e9m s\u00fa najv\u00e4\u010d\u0161ou hrozbou predov\u0161etk\u00fdm kysl\u00edk a oxid uhli\u010dit\u00fd. Tieto plyny sp\u00f4sobuj\u00fa kor\u00f3ziu syst\u00e9mu. Ve\u013ek\u00fa \u010das\u0165 plynov je mo\u017en\u00e9 zo syst\u00e9mu odstr\u00e1ni\u0165 odvzdu\u0161nen\u00edm. Samozrejme nie je to mo\u017en\u00e9 urobi\u0165 100 %. Zvy\u0161kov\u00fd kysl\u00edk a oxid uhli\u010dit\u00fd sa spotrebuje pri kor\u00f3znych reakci\u00e1ch, ktor\u00e9 sa \u010dasom zastavia. Pokia\u013e v\u0161ak na\u010falej doch\u00e1dza k prenikaniu kysl\u00edka do s\u00fastavy, je toto naj\u010dastej\u0161ou pr\u00ed\u010dinou kor\u00f3zie syst\u00e9mu.
    1g O2<\/sub> skoroduje 2,6 g Fe za vzniku a\u017e 4,13 g Fe(OH)3<\/sub>, teda hrdze za s\u00fa\u010dasn\u00e9ho vzniku 1,4.10-3<\/sup> m3<\/sup> vod\u00edka.
    Zdrojom vnikania kysl\u00edka m\u00f4\u017eu by\u0165 netesnosti jednotliv\u00fdch prvkov syst\u00e9mu, nevhodn\u00e1 alebo zle rie\u0161en\u00e1 expanzn\u00e1 n\u00e1doba, priepustnos\u0165 niektor\u00fdch plastov\u00fdch prvkov ale predov\u0161etk\u00fdm je to dopl\u0148ovan\u00e1 voda.<\/p>\r\n","protected":false},"excerpt":{"rendered":"

    1. Maj\u00fa radi\u00e1tory vn\u00fatorn\u00fa ochranu vo\u010di kor\u00f3zii a ak\u00e1 je ich \u017eivotnos\u0165? Panelov\u00e9 radi\u00e1tory maj\u00fa kvalitn\u00fa vonkaj\u0161iu povrchov\u00fa ochranu, \u017eiadne z nich v\u0161ak nemaj\u00fa \u0161peci\u00e1lne chr\u00e1nen\u00fd vn\u00fatorn\u00fd povrch. Ochrana vn\u00fatorn\u00e9ho povrchu je zabezpe\u010den\u00e1 vodou vo vykurovacom okruhu. Kysl\u00edk obsiahnut\u00fd vo vode zreaguje s oce\u013eov\u00fdm povrchom za vzniku ur\u010dit\u00e9ho mno\u017estva kor\u00f3zie. Po ukon\u010den\u00ed kor\u00f3znych reakci\u00ed je […]<\/p>\n","protected":false},"author":1,"featured_media":2849,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[68],"tags":[],"class_list":["post-3075","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-o-spolocnosti"],"translation":{"provider":"WPGlobus","version":"3.0.2","language":"ru","enabled_languages":["sk","en","ru"],"languages":{"sk":{"title":true,"content":true,"excerpt":false},"en":{"title":false,"content":false,"excerpt":false},"ru":{"title":false,"content":false,"excerpt":false}}},"acf":[],"yoast_head":"\nFAQ - \u010casto kladen\u00e9 ot\u00e1zky - Radi\u00e1tory KORAD<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.korad-radiators.sk\/faq\/\" \/>\n<meta property=\"og:locale\" content=\"ru_RU\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"FAQ - 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