Cov yeeb nkab fittings yog dab tsi?
Cov yeeb nkab fittings yog cov khoom siv yeeb nkab uas pab hloov txoj kev khiav, xws li lub luj tshib thiab tees. Hloov cov yeeb nkab loj, xws li reducers thiab txo tees. Txuas cov khoom sib txawv, xws li couplings, thiab nres ntws, xws li ntsaws.
Muaj ntau hom yeeb nkab fittings siv nyob rau hauv pipelines. Cov yeeb nkab fittings siv hauv cov yeeb nkab ua haujlwm tau teev tseg hauv qab no.
Luj tshib
Tee
Reducer
Union
Kev sib txuas
Adapters
Olet (Weldolet, Sockolet, Elbowlet, Thredolet, Nipolet, Letrolet, Swepolet)
Valve
Hla
Npog
Union pin
Plug
cap
Expansion sib koom
chav ntxiab
ntev lub luj tshib
Flanges
Nyob rau hauv cov lus saum toj no koj tuaj yeem pom cov npe ntawm cov qauv siv feem ntau siv cov yeeb nkab fittings. Cov qauv fittings no yog forged los yog forged. Tsuas yog cov raj seamless yog siv los tsim cov khoom siv forged. Loj txoj kab uas hla welded fittings yog tsim los ntawm cov ntawv hlau.
Cov khoom siv no muaj nyob hauv ntau hom kev sib txuas kawg.
cev elb
Lub luj tshib yog siv ntau dua li lwm cov yeeb nkab haum. Muab kev hloov pauv hloov cov kev taw qhia ntawm cov yeeb nkab. Lub luj tshib feem ntau muaj nyob rau hauv ob hom qauv ntawm 90℃thiab 45 degree. Txawm li cas los xij, nws tuaj yeem txiav mus rau lwm qib. Lub luj tshib muaj nyob rau hauv ob hom vojvoog, luv vojvoog (1D) thiab ntev vojvoog (1.5D).
90℃luj tshib
Lub luj tshib 90℃yog ntsia nruab nrab ntawm cov yeeb nkab kom hloov cov kev taw qhia ntawm cov yeeb nkab los ntawm 90 degrees. Muaj nyob rau hauv daim duab ntev thiab luv luv.
45℃luj tshib
Lub luj tshib 45℃yog ntsia nruab nrab ntawm cov yeeb nkab kom hloov cov kev taw qhia ntawm cov yeeb nkab los ntawm 45 degrees.
ntev lub luj tshib
Nyob rau hauv ib lub vojvoog ntev lub luj tshib, qhov nruab nrab lub vojvoog yog 1.5 npaug ntawm lub npe loj ntawm cov yeeb nkab lossis koj tuaj yeem hais 1.5 npaug ntawm txoj kab uas hla ntawm cov yeeb nkab. Feem ntau, lub luj tshib ntev yog siv rau hauv cov kav dej vim tias qhov poob siab tsawg dua piv rau luv luv luv luv luj tshib. Yuav tsum muaj chaw ntau dua li lub luj tshib luv luv.
luv radius luj tshib
Nyob rau hauv luv luv vojvoog luj tshib, lub centerline vojvoog yog tib yam li nominal loj ntawm cov yeeb nkab los yog nws muaj peev xwm hais tias yog ib zaug ntawm txoj kab uas hla ntawm cov yeeb nkab. Lub luj tshib luv luv yog siv rau hauv qhov chaw txwv. Txawm li cas los xij, lawv muaj qhov poob siab loj vim qhov kev hloov pauv sai sai hauv cov kev taw qhia ntws.
txo lub luj tshib
Lub 90 txo lub luj tshib yog tsim los hloov cov kev taw qhia thiab txo cov yeeb nkab loj hauv cov kav dej. Qhov txo lub luj tshib tshem tawm cov yeeb nkab haum thiab txo qhov vuam los ntawm ntau tshaj ib feem peb. Tsis tas li ntawd, maj mam txo qis hauv txoj kab uas hla ntawm lub arc ntawm lub luj tshib txo qis kom qis qis thiab txo qhov cuam tshuam ntawm kev kub ntxhov tam sim no thiab tuaj yeem ua rau sab hauv. Cov yam ntxwv no tiv thaiv kev poob siab ntau hauv kab.
Cov yeeb nkab khoov
Ntev vojvoog yeeb nkab luj tshib yog siv rau ntawm cov dej thauj mus los uas yuav tsum tau pigging. Vim nws lub vojvoog ntev thiab kev hloov pauv ntawm cov kev taw qhia, cov yeeb nkab lub luj tshib muaj lub siab me me, thiab cov dej ntws zoo thiab cov npua yog ua tau. 3D thiab 5D yeeb nkab luj tshib feem ntau muaj. Ntawm no, D yog qhov loj ntawm cov yeeb nkab.
Miter nkhaus
Miter luj tshib tsis yog tus qauv yeeb nkab fittings, tab sis yog tsim los ntawm cov raj. Lawv feem ntau nyiam rau qhov ntau thiab tsawg 10 "thiab saum toj no vim tias lub luj tshib loj yog kim, kev siv lub luj tshib miter yog txwv rau cov kab dej uas tsis tshua muaj siab. Lub luj tshib miter tuaj yeem tsim hauv 2, 3 thiab 5 daim.
Rov qab - 180℃luj tshib
Rov qab lub luj tshib yog siv los ua 180º hloov kev taw qhia. Muaj nyob rau hauv luv luv thiab ntev qauv. Cov khoom xa rov qab yog siv rau hauv cov cua kub coil, cua sov exchanger, tank qhov cua, thiab lwm yam.
Tee rau cov kav dej
Cov yeeb nkab tee yog siv los faib lossis sau cov kua dej los ntawm cov kav dej. Qhov no yog ib qho luv luv ntawm cov yeeb nkab nrog 90-degree ceg nyob hauv nruab nrab. Muaj ob hom tees siv hauv cov kav dej, qhov sib npaug / ncaj tee thiab txo / tsis sib npaug tee.
ncaj koj
Nyob rau hauv lub ncaj tee, txoj kab uas hla ntawm ceg yog tib yam li cov yeeb nkab conduction (header).
txo tshuaj yej
Nyob rau hauv qhov txo tee, txoj kab uas hla ntawm ceg yog me dua li ntawm cov yeeb nkab conduction (header).
T nrog bars
Ib qho barred tee, tseem hu ua scrap tee, yog siv rau cov kav dej uas txuas nrog. Lub ceg ntawm T muaj qhov tuav tuav welded sab hauv los tiv thaiv tus npua los yog khawb los ntawm kev nkag mus rau hauv ceg. Cov tuav yog welded mus rau ceg nyob rau hauv xws li ib txoj kev raws li tso cai rau unrestricted passage ntawm npua los ntawm lub khiav yeeb nkab.
Y/Side Tee
Nws yog hom tee uas muaj ceg ntawm lub kaum sab xis ntawm 45 degrees, lossis lub kaum sab xis dua li 90 degrees. Lub hnub qub tee tso cai rau ib lub yeeb nkab txuas mus rau lwm qhov ntawm lub kaum sab xis ntawm 45 degrees. Hom tee no txo cov kev sib txhuam thiab kev kub ntxhov uas tuaj yeem cuam tshuam kev ntws. Lub T hauv Y tseem hu ua lateral.
Hla
Tus ntoo khaub lig kuj tseem hu ua plaub txoj kab yeeb nkab haum. Ib tug ntoo khaub lig muaj ib tug nkag thiab peb tawm (los yog vice versa). Crosses feem ntau tsis siv rau hauv cov kav dej los thauj cov kua. Tab sis forged crosses yog muaj nyob rau hauv cov hluav taws dej sprinkler kab.
Cov yeeb nkab reducers
Cov yeeb nkab reducer hloov qhov loj ntawm cov yeeb nkab. Muaj ob hom reducers siv hauv cov kav dej: concentric thiab eccentric.
Concentric yeeb nkab reducer los yog conical reducer
Nyob rau hauv lub concentric reducer uas tseem hu ua conical reducer, qhov nruab nrab ntawm ob qhov kawg yog nyob rau tib axis. Tswj cov yeeb nkab centerline elevation. Thaum cov kab nruab nrab ntawm cov yeeb nkab loj thiab cov yeeb nkab me yuav tsum tau khaws cia zoo ib yam, ces siv concentric reducers.
Eccentric reducer
Hauv eccentric reducer, qhov nruab nrab ntawm ob qhov kawg yog nyob ntawm qhov sib txawv raws li pom hauv daim duab. Tuav lub BOP (hauv qab ntawm cov yeeb nkab) qhov siab ntawm cov kav dej. Thaum ib qho ntawm sab nraud ntawm cov yeeb nkab yuav tsum tau khaws cia zoo ib yam, eccentric reducers yuav tsum tau.
Offset=( Tus ID loj - Tus ID me) / 2
Lub zog Reducer
Lub swage zoo li cov reducers tab sis me me thiab yog siv los txuas cov kav dej rau lwm cov kav me me los yog qhov (socket-welded pipes). Zoo li reducers, lawv kuj muaj nyob rau hauv concentric thiab eccentric hom. Reducers muaj nyob rau hauv ntau hom kawg. Piv txwv li, ob qho tib si xaus ncaj los yog ib qho kawg thiab ib qho xov kawg.
Tube ntsaws
Lub ntsaws npog qhov kawg ntawm cov yeeb nkab. Cov yeeb nkab ntsaws yog siv rau qhov kawg ntawm cov kav dej. Lawv kuj tau siv nyob rau hauv headers ntawm cov kav dej rau yav tom ntej kev sib txuas.
Expansion sib koom xaus
Qhov kawg ntawm cov kav dej yog siv nrog lub union flanges. Nyob rau hauv hom flange no, lub tes tsho yog pob tw welded rau cov yeeb nkab, thaum lub flange txav ywj siab tshaj qhov kawg ntawm lub tes tsho. Nws yog ib qho flange piece, tab sis yog them los ntawm ASME B16.9, yog li nws raug suav hais tias yog cov yeeb nkab haum.
Cov yeeb nkab union
Cov koom haum yog siv los ua lwm txoj hauv kev sib txuas flanged hauv cov kab me me uas tsis tshua muaj siab uas cov yeeb nkab disassembly xav tau ntau zaus. Cov koom haum tuaj yeem muaj threaded kawg lossis solder xaus. Muaj peb daim rau lub union, ib tug txiv ntoo, ib tug poj niam kawg, thiab ib tug txiv neej kawg. Thaum cov poj niam thiab txiv neej xaus tau koom nrog, cov txiv ntoo muab lub siab tsim nyog los muab kev sib koom ua ke.
Cov yeeb nkab txuas
Muaj peb hom coupling muaj;
Tag nrho coupling
Ib nrab coupling
txo coupling
Tag nrho coupling
Cov coupling tag nrho yog siv los txuas cov kav dej me me. Nws yog siv los txuas ib lub yeeb nkab mus rau lwm qhov los yog cov yeeb nkab rau lub tes tsho lossis lub txiv mis. Nws tuaj yeem yog threaded hom lossis nrog lub qhov (socket) xaus.
Ib nrab Coupling
Qhov ib nrab coupling yog siv rau me me txoj kab uas hla ntawm lub nkoj loj lossis cov yeeb nkab. Nws tuaj yeem yog threaded lossis plug-in hom. Nws muaj threaded los yog socket kawg ntawm ib sab.
txo coupling
Qhov txo qis coupling yog siv los txuas ob qhov sib txawv ntawm cov kav dej. Nws zoo li lub concentric reducer uas tswj cov kab nruab nrab ntawm cov yeeb nkab tab sis txo qhov loj me.
cev spi
Lub txiv mis yog ib qho luv luv ntawm tubing uas muaj ib tug txiv neej xov ntawm ob kawg lossis ib kawg. Nws yog siv los txuas ob lwm yam khoom siv. Cov txiv mis yog siv los txuas cov kav dej, hoses thiab li qub. Lub tes tsho yog siv rau hauv cov kav dej uas tsis tshua muaj siab.
Cov yeeb nkab fittings rau welding thiab threading
Threaded thiab socket weld yeeb nkab fittings yog cov khoom forged thiab raug cais raws li lawv qhov siab thiab kub. Lawv muaj los ntawm NPS 1/8 "mus rau 4". Cov khoom siv no muaj nyob rau hauv plaub lub siab- chav ntsuas kub.
Class 2000 fittings tsuas yog muaj nyob rau hauv threaded version.
Chav kawm 3000 thiab 6000 fittings muaj nyob rau hauv ob qho tib si threaded thiab socket weld hom.
Chav kawm 9000 fittings muaj nyob rau hauv lub qhov (socket weld type) nkaus xwb.
Cov fittings no yog siv rau cov kab me me, cov kav dej tsis tshua muaj siab.
Cov yeeb nkab fittings Qhov ntev ntawm cov fittings yuav tsum ua tau raws li qhov yuav tsum tau ua ntawm tus qauv,
Qhov loj me ntawm cov khoom forged (WP) yog xav txog hauv
ASME B16.9 - uas yog tus qauv rau forged pob tw weld fittings hauv qhov ntau thiab tsawg NPS 1⁄₂ rau NPS 48 "thiab
Thiab B16.28- uas yog tus qauv rau Butt Welded Forged Steel Short Radius Luj tshib thiab rov qab rau qhov loj NPS 1⁄₂ rau NPS 24 ".
Rau forged accessories qhov ntev yog xav nyob rau hauv
ASME B16.11 - tus qauv rau forged steel fittings npog qhov (socket) weld thiab threaded fittings
