Raws li lub hauv paus tseem ceeb ntawm kev thauj mus los ntawm cov kua dej, cov yeeb nkab hlau fittings yog categorized raws li lawv qhov chaw ua haujlwm, cov qauv tsim, thiab kev sib txuas ntawm kev sib txuas.
Raws li kev ua haujlwm tau zoo, cov yeeb nkab steel yeeb nkab fittings tuaj yeem muab faib ua hom kev sib txuas yooj yim, hom tswj ntws, thiab hom kev ua haujlwm tshwj xeeb. Cov hom kev sib txuas yooj yim yog cov khoom siv feem ntau siv hauv cov kav dej sib txuas, suav nrog cov kav dej ncaj, reducers, lub kaus mom, thiab plugs. Thaum cov kav dej ncaj nraim muaj cov qauv yooj yim, lawv qhov sib txawv ntawm phab ntsa thicknesses thiab ntev tso cai rau lawv hloov mus rau qhov sib txawv ntawm cov kev ntsuas siab thiab cov kev xav tau ntawm kev teeb tsa. Reducers yog siv rau kev hloov cov yeeb nkab txoj kab uas hla; lawv cov qauv tapered yuav tsum sib npaug ntawm cov kua dej sib xws nrog kev hloov pauv kev ntxhov siab. Cov ntaub ntawv muaj xws li concentric thiab eccentric reducers, yav tas los haum rau cov kua thauj, thiab tom kawg txo cov deposition ntawm gases los yog impurities nyob rau hauv cov kua. Caps thiab plugs yog siv rau sealing yeeb nkab kawg; lub kaus mom feem ntau yog hemispherical los yog tiaj tus, thaum cov ntsaws ruaj ruaj yog nquag siv nrog spigots rau tshem tau sealing.
Flow tswj fittings feem ntau ua haujlwm los hloov cov kev taw qhia ntawm kev tshaj tawm thiab feem ntau suav nrog lub luj tshib, tees, hla, thiab oblique tees. Lub luj tshib tau muab faib ua ob pawg raws li lawv lub vojvoog ntawm curvature: ntev vojvoog (R=1.5D) thiab luv vojvoog (R=1.0D). Ntev vojvoog luj tshib txo cov kua dej tsis kam thiab eddy tam sim no poob, ua rau lawv haum rau siab -flow- tus nqi daim ntawv thov los yog siab poob- tej yam kev mob rhiab heev. Luv vojvoog luj tshib txuag qhov chaw installation. Tees thiab crosses ua tiav kev sib cais los yog kev sib koom ua ke los ntawm kev sib tshuam ntawm cov kav dej loj thiab ceg ntoo . 90℃ceg yeeb nkab cov ces kaum feem ntau, tab sis cov kaum sab xis xws li 45℃thiab 60℃muaj rau cov ntawv tshwj xeeb. Lub hauv paus ceg yuav tsum tau ntxiv dag zog nrog ib puag ncig arc lossis tuab phab ntsa tsim los tiv thaiv cov dej yaig thiab kev ntxhov siab. Oblique tees txo cov kua dej tig thiab ua kom zoo dua qhov kev ua haujlwm hydraulic ntawm cov yeeb nkab network los ntawm cov tsis yog - cov ceg ntoo.
Raws li cov qauv tsim thiab txheej txheem molding, fittings tuaj yeem muab faib ua ib qho cam khwb cia yeeb nkab fittings thiab composite yeeb nkab fittings. Integral cam khwb cia yeeb nkab fittings yog tsim nyob rau hauv ib thooj los ntawm cov xuab zeb casting los yog centrifugal casting, ua rau muaj zog structural continuation thiab tsis muaj zog weld ntsiab lus. Lawv haum rau cov ntawv thov uas xav tau kev kub siab thiab kev ua haujlwm siab sealing. Modular yeeb nkab fittings, ntawm qhov tod tes, yog tsim los ntawm ntau yam castings lossis castings welded rau steel daim hlau, xws li flanged luj tshib thiab tees. Lawv cov flanges muab kev sib txuas yooj yim flange, tab sis kev tswj xyuas nruj ntawm vuam zoo yog qhov tsim nyog kom tsis txhob muaj kev pheej hmoo.
Raws li txoj kev sib txuas, cov yeeb nkab fittings tuaj yeem muab faib ua qhov (socket fittings), flange fittings, thiab mechanical fittings. Lub qhov (socket) - hom yeeb nkab fittings, sawv cev los ntawm T- hom swb- hauv kev sib tshuam, ua tiav lub foob hloov tau los ntawm lub conical nto ntawm lub qhov (socket) thiab lub nplhaib roj hmab sealing. Kev txhim kho tsuas yog siv zawv zawg qhov ntswg rau hauv lub qhov (socket) kom ua tiav qhov kev sib txuas, ua rau lawv tsim nyog rau feem ntau hauv nroog thiab tsim cov kav dej sib txuas. Flange- hom yeeb nkab fittings muaj flanges ntawm qhov kawg lossis ob sab, ua tiav lub foob los ntawm cov bolts thiab cov flange gaskets sib xws, ua kom yooj yim rau kev sib txuas ceev nrog li qub, twj, thiab lwm yam khoom siv. Mechanical yeeb nkab fittings (xws li K- hom interfaces) ntxiv cov cuab yeej ntsuas phoo rau lub qhov (socket)- hom qauv tsim, nruj kho cov spigot thiab lub qhov (socket) ua ke nrog bolts thiab flanges, txhim kho lub interface lub siab tiv thaiv thiab rub- tawm tsis kam, haum rau cov kav dej nrog kev ua haujlwm siab.
Tshwj xeeb muaj nuj nqi yeeb nkab fittings yog tsim los rau cov kev xav tau tshwj xeeb. Piv txwv li, expansion pob qij txha them rau qhov expansion thiab contraction ntawm pipelines vim qhov kub thiab txias hloov; lawv cov qauv sab hauv muaj xws li zawv zawg lossis rotating Cheebtsam, tso cai rau qee qhov axial lossis angular hloov chaw. Cov cua qhov cua thiab cov dej ntws ua ke ua ke cov dej tswj cov ntsiab lus rau qhov cua los yog tshem tawm cov yeeb nkab network. Insulated yeeb nkab fittings sau cov yeeb nkab phab ntsa nrog cov khoom siv rwb thaiv tsev kom txo tau cov cua sov thaum lub sij hawm kev thauj mus los.
Feem ntau, categorization system ntawm ductile hlau yeeb nkab fittings yog ua haujlwm - taw qhia, qauv - txhawb nqa, thiab kev sib txuas- txuas, npog txhua yam ntawm cov kev xav tau los ntawm kev sib txuas yooj yim mus rau kev tswj tsis yooj yim. Kev xaiv thiab kev sib xyaw ua ke ntawm ntau hom yeeb nkab fittings tuaj yeem tsis tsuas yog txhim kho hydraulic kev ua tau zoo ntawm cov raj xa dej, tab sis kuj tseem txhim kho kev nyab xeeb thiab yooj yim ntawm kev khiav lag luam thiab kev saib xyuas, muab cov kev daws teeb meem rau niaj hnub tsheb thauj mus los engineering.