Khoom haum rau kaw -Loop Systems
Brass yeeb nkab fittingsyog tag nrho haum rau hydronic cua sov tshuab. Cov tshuab no siv dej kub los ntawm cov tshuab hluav taws xob, cov voj voog hauv pem teb, lossis cov hauv qab. Brass muaj nuj nqis rau nws lub zog, tiv thaiv corrosion, thiab muaj peev xwm tiv taus qhov kub thiab txias. Nws yog cov khoom siv uas tau pom zoo los ntawm cov cai loj hauv tsev.
Txoj Cai Pom Zoo thiab Cov Qauv
Cov lej hauv tsev tshwj xeeb sau cov tooj dag rau kev pabcuam hydronic. International Residential Code (IRC) Table M2101.1 suav nrog " tooj dag yeeb nkab" thiab " tooj dag tubing" raws li cov ntaub ntawv tso cai hydronic piping. Qhov no siv rau saum - kev teeb tsa hauv av. Cov cai hais kom cov fittings raug ntsuas rau kev khiav hauj lwm kub thiab siab ntawm qhov system.
Kub thiab siab ntsuas
Hydronic systems ua haujlwm nyob rau hauv tooj dag qhov kev ua tau zoo. Cov txheej txheem nyob hauv cov txheej txheem khiav ntawm 140-160℃F (60-71℃). Ib tug raug tooj dag expansion haum yog ntsuas rau qhov siab tshaj plaws ntawm 160℃F ntawm 73 psi. Brass kuj muaj qhov kub thiab txias, ua rau nws zoo tagnrho rau kev faib dej kub.
DZR tooj dag rau kev tiv thaiv corrosion
Tsis yog txhua tus tooj dag yog sib npaug rau hydronic cua sov. Koj xav tau DZR (Dezincification Resistant) tooj dag fittings. DZR tooj dag yog tsim tshwj xeeb thiab cua sov- kho kom tiv thaiv corrosion. Qhov no yog qhov tseem ceeb vim tias cov tshuab hydronic tuaj yeem muaj cov tshuaj lom neeg muaj zog. DZR fittings yog "corrosion-resistant" thiab tau ntawv pov thawj rau hydronic cua sov system daim ntaub ntawv.
Hom haum haum rau Radiant cua sov
Brass manifolds muaj nyob rau hauv pem teb cua sov tshuab. Ib qho tooj dag manifold txuas 2, 3, lossis 4 kab dej. Nws faib cov dej kub sib npaug ntawm ntau lub voj voog cua sov. Brass T-puab fittings yog tsim los txuas lossis hloov ntau txoj kab dej rau cov kav dej hloov tau yooj yim hauv cov tshuab no. Cov manifolds no tuaj yeem ua haujlwm txog li 195 PSI hauv kev lag luam - qib kev thov.
Hloov Fittings rau Hybrid Systems
Brass yeeb nkab fittingsyog siv los hloov cov ntaub ntawv. Piv txwv li, "brass hws adapters" txuas PEX yeeb nkab rau tooj liab yeeb nkab siv rau hauv hydronic cua sov thiab cua txias tshuab. Ib qho kawg siv PEX kev sib txuas thaum lwm qhov muaj qhov sib txuas hws tooj liab. Qhov no tso cai rau hybrid systems uas sib txuas cov yeeb nkab sib txawv.
Lead-Cov Kev Xav Tau Dawb rau Kev Sib Txuas Ntxiv
Yog tias koj lub kaw lus hydronic muaj cov dej sib txuas, siv lead- tooj dag dawb. Lead - dawbtooj dag fittingsUa tau raws li NSF/ANSI 61 thiab 372 tus qauv. Cov no muaj cov ntsiab lus siab tshaj plaws ntawm 0.25% los ntawm qhov hnyav. Ntau qhov chaw txiav txim siab yuav tsum muaj cov khoom siv lead ua -dawb rau txhua qhov system txuas nrog cov dej haus.
Txwv tsis pub siv
Qee cov khoom siv tooj dag tsis muaj kev nyab xeeb rau qee yam kev siv. Piv txwv li, C36000 tooj dag fittings tshwj xeeb yog cim "tsis yog rau cov ntawv thov siv tau". Cov no yog siv tau rau kaw hydronic loops tab sis tsis yog rau cov kav dej haus. Nco ntsoov xyuas cov chaw tsim khoom lub npe ua ntej kev teeb tsa.
Kev sib koom ua ke tso cai los ntawm Code
Hydronic tooj dag sib txuas tuaj yeem ua tau ntau txoj hauv kev. IRC tso cai rau brazed, welded, threaded, mechanical, thiab flanged pob qij txha rau tooj dag yeeb nkab. Rau tooj dag tubing, brazed, soldered, thiab mechanical pob qij txha tau tso cai. Threaded kev sib txuas yuav tsum tau PTFE daim kab xev kom ruaj ntseg foob.
Kev ntsuas siab rau qib sib txawv
Brass yeeb nkab fittingstuaj nyob rau hauv cov chav kawm siab sib txawv. Chav kawm 125 fittings yog rau qis - cov tshuab siab (100-299 psi). Nickel-plated high-pressure fittings tuaj yeem ua haujlwm 1,000 txog 3,000 psi. Rau cov txheej txheem hauv tsev hydronic, Chav Kawm 125 nrog DZR tooj dag feem ntau txaus.
Nkag siab 160℃F / 73 psi Limits
Ntau yam tooj dag expansion fittings teev qhov siab tshaj plaws: 160℃F ntawm 73 psi. Qhov no yog ib qho kev ntsuas rau PEX-rau- tooj dag sib txuas. Nco ntsoov tias qhov ntsuas qhov siab poob qis thaum kub nce. Ntawm qhov kub thiab txias, tib qhov haum tuaj yeem tswj tau qhov siab dua.
Summary rau Installers
Brass yeeb nkab fittingsyog tag nrho sib xws nrog hydronic cua sov tshuab. Lawv yog code-pom zoo, ruaj, thiab tshav kub-resistant. Kom tau txais txiaj ntsig zoo tshaj plaws, siv DZR lead- tooj dag dawb rau kev tiv thaiv corrosion. Xaiv cov chav kawm siab thiab sib koom ua ke rau koj daim ntawv thov. Nco ntsoov ua raws li cov chaw tsim khoom kub thiab siab ntsuas. Txawm hais tias rau radiant pem teb cua sov los yog baseboard systems, tooj dag muab kev ntseeg siab, ntev - kev ua tau zoo.
