Iska da sarewa, da galvanized (Standard)

Kwanan nan, samun iska bututu ya zama quite na kowa tutiya, wanda yana da babban plasticity kuma daban-daban anti-lalata kaddarorin. Irin kayayyakin da za a iya amfani da wani iri-iri na yanayi, amma yana da muhimmanci a zabi su daidai. A shafi da ake amfani a cikinta aluzinc kunshi 5% aluminum da kuma 95% tutiya.

M ducts da yawa iri, amma ana yi daidai da jihar 14918-80 matsayin da babban mataki na sinadaran da kwanciyar hankali. A sayarwa za a iya gani bututu domin samun iska tsarin, abin da ya bambanta ultrahigh lalata juriya, kazalika da zazzabi canje-canje, a cikin wannan yanayin Gost 5632-72 da ake amfani a samar da tsari.

Bayani dalla-dalla da kuma Standard

Iska bututu , galvanized iya samun rectangular ko madauwari giciye-sashe, da kabu aka rebated ko welded, kuma ta shugabanci - mike ko helical shugabanci. Akwai daban-daban kayayyakin da cewa za a iya classified bisa ga tightness. Amma bututu iya aiki a lokacin da yanayi zazzabi lẽƙãwa 80 ° C. Iska da sarewa, da galvanized 100 mm - wani samfurin line cewa yana farawa masu girma dabam a diamita. The most diamita ne a cikin iyaka na 1250 mm. A kauri daga cikin takardar amfani iya bambanta daga 0.5 zuwa 1.25 mm, alhãli kuwa m tsawon na samfurin iya zama daidai da 3 m, amma matsakaicin tsawon ne 25 mita. Bi da wadannan kayayyakin tsafta norms da kuma dokoki 2.04.05-91. 3.05.01-85.

Bututu ventilating galvanized za a iya amfani shari iska zafi ne 60% ko kasa, da yawan zafin jiki ya kamata ba tashi sama 80 ° C. Idan samfur ne da za a sarrafa a karkashin yanayi da cewa a lokacin da samar da karfe takardar da ake amfani, wanda aka kera da Hanyar sanyi mirgina. Its kauri ya zama daidai da iyaka dari 0.5 zuwa 1 mm, da kayan dole ne bi da gwamnatin nagartacce 14918-80. Don matsar da mafi zafi iska wanda zazzabi matakin zai isa 500 ° C, musamman kayayyakin dole ne a yi amfani da su dace da gas sufuri.

A kauri daga tsafta norms da kuma dokoki

Iska da sarewa, da galvanized 100 mm - ne a samfur na diamita, amma wannan ba shine kawai halayyar cewa ma'anar da halaye na wannan tsarin. Yana da muhimmanci a san ma game da kauri wanda aka kayyade ta tsafta norms da kuma mallakar 11-33-75. 41-01-2003. Idan diamita daga cikin bututu dabam a cikin kewayon har zuwa 315 mm, da kauri daga cikin takardar amfani ne 0.5 mm. Idan na farko siga zai bambanta daga 350 zuwa 800 mm, da samfurin ya kamata da wani bango kauri daga 0.7 mm. lokacin da diamita ne ta ƙara zuwa 900-1250 mm, bango kauri zai zama daidai da 0.9 mm. A bango kauri daga 1.2 mm, idan diamita na 1400-1600 mm.

wuta juriya

Galvanized bututu iska iya samun wasu wuta juriya, wannan halayyar kayyade nawa lokaci da samfurin iya rataya a farkon na dumama. Wannan siga da aka kayyade a cikin minti, shi za a iya samu a bututu. Domin bututu da ake amfani da a high-Yunƙurin gine-gine iska tsarin, wuta juriya da iyaka ne minti 90, wannan constructions aka saka a kan rufi.

Idan muna magana ne game da corridor ganuwar, iyaka ya minti 30. Wadannan ducts ne sifili wuta juriya aji, alhãli kuwa a yau shi ne da aka sani biyar azuzuwan. Daga sifili har zuwa biyar digiri na wuta hadarin ƙãra. A tube iya kara kare da wuta-resistant abun da ke ciki. Za ka iya yi shi da kanka, bayan wani mabukaci kana bukatar ka tsaftace da matsanancin surface daga cikin samfurin.

rarrabuwa na iska ducts

Aka bayyana ducts iya zama rectangular ko madauwari sashe. Products cewa an ambaci karshe fall cikin karkace kulle da kuma welded. Tubes tare da madauwari sashe ne mai fa'ida fiye da idan aka kwatanta da rectangular giciye sashe shambura. Zagaye ku auna nauyi da yawa kasa tightness sama da installing irin wannan tsarin shafar sauki.

Rectangular samfurin juna flanges a lokacin shigarwa, amma yin amfani da fasahar ba tare da flanges. Areas na yin amfani da rectangular bututu ne gidajensu, da ofisoshi da makarantu da kuma wuraren. Zagaye ducts ne da yawa kasa rectangular, Farashin ne 35% m. Air rarraba a cikin wadannan kayayyakin ne uniform, da kuma sauti-mamaye Properties - sama.

Features makaran, karkace-rauni, kuma longitudinally welded kayayyakin

A makaran piping zafin jiki ba ya sauke, shi da gusar da abin da ya faru na sandaro a kan garun, wanda zai iya lalata abu. Galvanized bututu aikin quite m, da kuma gaban insulating Layer yi aikin aiki na sauti rufi. Irin wannan Layer iya sanya daga ma'adinai fiber ji, polyurethane, kuma kumfa elastomers.

Galvanized bututu nuna (125) da aka yi na karkace Twisted kintinkiri cewa an samar da karkace, yanã ƙara ƙarfi ne, kuma rigidity. A tsawon wannan kayayyakin ne yawanci daidai 3 m. A seams bututu kadan yawan gidajen abinci, wanda ke nufin cewa tsarin yana da mafi girma tightness. Welded bututu ne mai rahusa idan aka kwatanta da karkace, saboda su yi lallai ba ne su shirya wani galvanized karfe sheet. A tsawon na tsaye bututu ne yawanci 125 m, matsayin mai mulkin, suna saya don waje kafuwa.

Kudin madauwari ducts na galvanized karfe, dangane da diamita

Iska da sarewa, da galvanized 200 mm - wannan ne tsĩra 'samfurin, wanda zai biya 755 rubles. Idan diamita an karu zuwa 1250 mm, sa'an nan da farashin zai zama daidai da 7500 rubles. apiece. Ga kayayyakin da karami diamita na 100 mm da biya 400 rubles. A talakawan kudi zuwa 500 mm a diamita kudin da mabukaci na 2800 rubles.