Tsim cov qauv ASME B36.10 ASME B36.40

Titanium yog kev hloov pauv hlau uas tseem ua tau cov khoom sib thooj hauv nws tus cwj pwm tshuaj, tshwj xeeb tshaj yog nyob rau hauv qis dua li Chrome thiab Vanadium.

Lub Flange yog qhov thib ob feem ntau siv koom nrog txoj kev tom qab selding. Kev siv flanges tau siv thaum cov pob qij txha xav tau dismantling. Nws muab kev hloov tau rau kev saib xyuas. Flange txuas cov yeeb nkab nrog ntau yam khoom siv thiab li qub. Breakup Flanges tau ntxiv rau hauv cov raj xa hluav taws yog tias kev saib xyuas tsis tu ncua thaum lub sijhawm cog ntoo.

316L 1.4401 tus yeeb nkab stainless hlau yog ib qho kev xaiv yeeb nkab zoo heev thiab cov yeeb nkab ruaj khov siv hauv ntau cov ntawv siv. Qhov no ss s31603 yeeb nkab yog tsim los ntawm cov hlau zoo 316L stainless ua rau corrosion, oxidation thiab staining rau cov chaw hnyav lossis kev siv ntxhov siab.

Alloy 800 yog npib npib tsib xee-chromium alloy nrog siab zog thiab kev tiv thaiv zoo rau oxidation thiab corrosion ntawm qhov kub. ASTM B407 UNICS NC08800 INCOLOY 800 W. NR. 1.4876 Welded yeeb nkab yog dav siv rau kev tsim kho cov khoom siv uas yuav tsum tau ua rau corrosion tsis kam, lub zog, thiab ruaj khov rau kev pabcuam txog 1500 ° F (816 ° C).

Cov yeeb nkab steel yog cov siv cov khoom siv xa khoom hauv ntau yam kev tsim kho rau kev tsim kho, cov txheej txheem ua kua, cov roj kev sib kis rau dej, roj thiab roj. Cov yeeb nkab cov hlau yeeb nkab cov qib hauv API 5L Qib B, X42 B, Astm A53 B, Cov yeeb nkab A333 A slurry pipeline is designated to transmit ores (Iron, Coal materials), or the industry mining waste, we called the pipeline as taillings. Thiab feem ntau cov kav dej hlau txuas nrog kev ncua ntev. Cov ntaub ntawv saum toj no nrog dej, peb hu slurry. Cov neeg yuav siv cov twj thauj mus los rau lub hom phiaj kawg ces yuav tau lim. Txij li thaum slurry muaj cov khoom sib txawv ntawm cov khoom sib txawv, yog li cov yeeb nkab tuaj yeem sib xyaw nrog 3PE, Febe txheej los tiv thaiv los ntawm kev xeb.

ASTM A240 Hom 2205 Phaj yog lub Duplex phaj yog siv ntau yam kev lag luam xws li kev ua yeeb yam, roj thiab roj kev tshawb nrhiav, thiab marine engineering. Sa 240 gr 2205 daim ntawv yog tsim los ntawm qib 220) stainless hlau, uas yog kev sib xyaw ntawm ferritic thiab ustenitic steel.

Inconel 600 puag ncig bar yog npib tsib xee-raws li benign carburization thiab zoo heev corrosion thiab kub heev. Inconel 600 cov khoom sib txuas ua haujlwm tiv thaiv kom qhuav cl2 thiab ntau lwm cov roj sib txawv ntawm cov mob me thiab kub. Alloy 600 Bar yog npib tsib xee-chromium alloy nrog zoo oxoidation decomposition decomposition decomposition thiab acid oxidation ntawm ntug dej kub.

Nws tseem zoo tagnrho rau kev lag luam rhiab xws li kev npaj khoom noj thiab khoom noj, uas muaj kev pheej hmoo ntawm kev paug qis dua.

Nilo Alloy 36, W.NR 1.3912, Tiv Thaiv 36% Nickel-Npib thiab muaj tus nqi ntawm kev nthuav dav ntawm cov hlau.

Cov khoom muaj nce ntxiv yog tau los ntawm kev ntxiv txhuas thiab totion-Tooj-tooj ​​liab, thiab los ntawm cov cua sov hauv qab ntawm Ni3 (Ti, Al) yog precipitated hout rau matrix.

Hastelloy C2000 muaj nyob rau ntau qhov ntau thiab tsawg, hom no-lickel-molybdenum alloy muaj zog thiab corrosion tsis kam.

Inconel 718 yog npib tsib xee-chromium-based alloy uas feem ntau siv nyob rau hauv cov ntawv thov kub siab xws li aerospace thiab roj turbines. Ib qho ntawm cov tseem ceeb tshaj plaws hauv kev tsim cov astm b670 inconel 718 daim ntawv yog lub phaj dov. Muaj ob hom tseem ceeb ntawm inconel 718 daim hlau muaj nyob rau ntawm kev ua lag luam: kub dov thiab cov phiaj txias. Cov paib.

Caw 36 ® yog npib npib npib tsib xee, tsis muaj nyiaj npib ob leeg uas muaj 36%, commar 36 muaj qhov kub tsawg los ntawm kev nthuav dav ntawm + 500 ° F (260 ° C).

Duplex Steel Tuav & Rods
Siab chromium, molybdenum thiab nitrogen cov ntsiab lus cuam tshuam nrog pitting tsis zoo rau cov medtenatent thiab corrosive corrosive conduction, thiab tseem ceeb pitting txias rau tag nrho cov xov xwm, thiab tseem ceeb pitting txias rau saum 50¡Ãc.

Npib tsib xee raws 800 incoloy hexagonal yeeb nkab yog paub kom muaj qhov zoo tiv taus corrosion. Tshwj xeeb hais txog kev hais lus, tus incoloy 800 yeeb nkab muaj txaus tiv taus ob carburization zoo li oxidation corrosion.

Incoloy 800H Flange Peb muaj lub koob npe nrov hauv kev lag luam rau kev tsim cov hom kev ua haujlwm zoo ntawm cov hom uas yuav tsum tau ua rau peb cov neeg siv khoom. Peb tsim khoom tsim prololoy 800 flanges uas muaj kev ntseeg siab thiab siab dua. Peb siv cov peev txheej hwm thiab qib siab tshaj tawm rau kev tsim ASTM B564 UNFANCES 800 flanges.

Titanium cov khoom siv thermodynamic tsis pub nws kom yaj nyob rau hauv ib txwm muaj mob thiab tuaj yeem ntes cov hluav taws yog tias cov pa roj oxygen nyob hauv nws ib puag ncig.

Tsis suav txog N08367 tseem hu ua Alloy Al6XN yog cov carbon ntau, siab purity, nitrogen-batoy nrog zoo heev rau chloride pitting thiab compevice corrosion.

Inconel 625 coil yog cov yam ntxwv zoo los ntawm nws cov kev tiv thaiv zoo rau oxidation, qhov siab-kub corrosion thiab qaug zog. ASTM B443 tsis yog N06625 Inconel P phaj tau siv dav hauv Aerospace, kev ua lag luam thiab roj thiab muaj zog zoo dua qub txawm tias muaj ib puag ncig zoo.

Lub 316 cov yeeb nkab stainless hlau tau dhau los ua cov khoom siv tsis tau rau cov kev lag luam lag luam. Qhov no alloy ntawm hlau thiab chrome tau lees paub rau nws lub siab tiv taus corrosion, nrog rau nws cov kav ntev. 316 Stainless hlau Tubing tuaj yeem tsim nyob rau hauv ob leeg seamless thiab welded leeg kom tau raws li cov neeg siv khoom xav tau.

Peb tsim khoom, muab khoom thiab xa tawm ASME Alloy Steel Seamless Yeeb \ / Tube (SA335 Qib P9) rau ntau qhov kev siv khoom. Peb cov kws tshaj lij hauv kev muab cov khoom siv uas siv cov hlau ua rau peb muaj cov qib ntawm Alloy Steel, xws li A-387 gr, rau ntau hom kev siv engineering. P1, P5, P9, P11, P12, P22, P91, ASTM A-335, thiab lwm yam.

Qhov no muab kev txhim kho zoo heev rau cov sulfuric acid. Nws kuj tseem muaj cov ntsiab lus chromium siab, kom ua kom zoo dua rau oxidizing tshuaj lom neeg cov tshuaj lom kabmob uas muaj kuab lom thiab yaj oxygen.
Titanium yeeb nkab fittings luj tshib superconduction thaj chaw

Hastelloy alloy B2 kav yog paub rau nws cov tshuaj lom neeg zoo heev, haum rau cov ntawv thov kub siab thiab ntsuas kub.

Lub corrosion resistant Hastelloy alloys tau siv dav los ntawm kev lag luam ua lag luam. Qhov kev xav tau rau kev ua tau zoo ua rau lawv txoj kev lees paub thiab kev loj hlob hauv thaj chaw ntawm lub zog, kev noj qab haus huv thiab ib puag ncig, roj thiab cov roj thiab cov roj cuv khw desulfurization.

Alloy 800 Weld Neck Flanges Peb muaj lub koob npe nrov hauv kev lag luam rau kev tsim cov hom kev ua haujlwm zoo uas yuav haum rau peb cov neeg siv khoom. Peb tsim khoom tsim prololoy 800 flanges uas muaj kev ntseeg siab thiab siab dua. Peb siv cov peev txheej hwm thiab qib siab tshaj tawm rau kev tsim ASTM B564 UNFANCES 800 flanges.

SCH40 monel 400 yeeb nkab raug xaiv raws li Werkstoff tus lej 2.4360 thiab tsis yog N04400. Alloy 400 cov kav hlau tseem hu ua monel aleloy 400 Yeeb Nkab, Monel 400 Yeeb & Nickel Alloy 400 Yeeb Nkab.

Nickel Alloy Yeeb Nkab & Tube
Tsis muaj 6625 wn flangs
ASME B36.19M yog tus qauv kev qhia tshwj xeeb rau cov kav hlau stainless hlau, uas qhia txog kev ua siab ntev, thiab tsim khoom rau cov kav dej thiab cov txiv ntseej.
Inconel 600 Yeeb Nkab Antioxidant

Lub taub hlau stainless 304 fittings ib ntawm cov siv cov yeeb nkab feem ntau ntawm cov yeeb nkab fittings thoob ntiaj teb.

Ib lub flange yog lub nplhaib ntawm cov hlau (forged, txiav los ntawm phaj, lossis koom nrog cov yeeb nkab ntawm cov yeeb nkab, lossis los koom nrog cov hlab ntsha, lossis mus ua ke lossis lwm qhov chaw sib dhos. Flanges tau koom nrog txhua lwm yam los ntawm kev siv pas dej los ntawm vuam los yog xov (lossis xoob thaum cov quav xaus yog siv). Stainless hlau Flange Tau yooj yim raws li ss flange, nws yog hais txog cov flanges uas ua los ntawm stainless hlau. Cov qauv qauv ib txwm muaj thiab qib AN182% F304 \ / L thiab / L thiab / / /50.

Al6XN yog superaustenitic steel hlau nrog kev ua tau zoo rau chloride pitting, crevice corrosion thiab kev nyuaj siab corrosion tawg. Al6XN yog 6 Moly alloy uas tau tsim rau thiab siv hauv kev sib cav sib ceg siab. Nws muaj cov npib tsib xee (24%), Molybdenum (6.3%), nitriumen thiab chromium cov ntsiab lus tawg, thiab tshwj xeeb corrosion tiv thaiv. Al6XN yog feem ntau siv rau nws cov kev txhim kho pitting thiab crevice corrosion tsis kam hauv chlorides. Nws yog ib qho tsim nyog thiab weldable stainless hlau.

Stainless hlau fasteners yog siv rau corrosion tsis kam. Rov qab rau cov kev ntseeg nrov, stainless hlau fasteners tsis muaj zog, tab sis lawv ua muab los tiv thaiv kom xeb, stains thiab xeb. Stainless cov txiv ntoo, bolts, screws thiab cov tshuab ntxhua khaub ncaws yuav tsum yog koj qhov kev xaiv thawj zaug thaum nrhiav cov ntsiab lus ntawm cov khoom ntawm cov khoom sab nraud, tshwj xeeb yog dej. Qhov ua tiav ntawm stainless hlau nyob ntawm tus nqi ntawm chromium hauv cov khoom.

Qhov zoo tshaj plaws tshuab luam ntawv rau cov monel k500 ceg tawv taub pob qij txha yog nyob rau hauv anealed mob. Lub caij no, cov Monel K500 Socket Weld Flanges tseem muaj nyob rau ntau qhov sib txawv thiab cov duab rau peb cov neeg siv khoom.

B7 thiab B7m yuav tsum yog cua sov kho los ntawm quenching hauv cov kua nruab nrab thiab tempering. Rau b7m fasteners, kev kho cua sov kawg, uas yuav ua rau lub tempering ua haujlwm yog tias ua tiav tom qab txhua tus machining thiab tsim cov dolling thiab ib hom kev txiav.

Titanium lub ntom yog li 60% uas ntawm stainless hlau thiab nickel alloys, qhov hnyav no txuag ua rau nws xaiv qhov chaw zoo uas yog qhov tseem ceeb xws li aerospace.

Alloy Steel yog cov hlau sib cais los ntawm kev ntxiv ntau hom ntawm cov ntsiab lus nrog tag nrho cov nyiaj ntawm 1.0% thiab 50% txhawm rau txhim kho nws cov khoom siv. Alloy Steel tau muab faib ua ob pawg: cov hlau tsis tshua muaj hlau thiab cov hlau loj. Qhov sib txawv ntawm ob yog kev debatable. Smith thiab Hashemi txhais qhov txawv li 4.0%, thaum degarmo li al. txhais qhov txawv li 8.0%. Feem ntau, cov kab lus "alloy steel" yog hais txog cov hlau tsis tshua muaj hlau.

Hastelloy C2000 tub tshij yog siv nyob rau hauv ntau hom petrochemical suav nrog cov khoom siv tshuaj lom neeg, roj kev tsim khoom siv, roj ntxiv thiab cov nroj tsuag hluav taws xob.

Nws yog dav siv nyob rau hauv cov roj pov thiab roj kev tshawb nrhiav \ / ntau lawm thiab hauv kev hloov cua sov hauv petrochemical \ / tshuaj lom neeg.

Cov ASTTM A234 WP9 Buttings siv ntau yam kev lag luam zoo li: Alloy Steel WP9 muaj 0.15% - MANANYE, 0.3% Max phosphorus thiab leej faj.

Cov ntawv thov rau ASMI08 Alloy 825 Hloov Bar yog cov tshuab, vapution tswj, pickling tank sib, thiab kev siv roj nuclear. ASME SB408 ALLOY 825 bar tau kuj zoo heev rau ntau yam ntawm kev xeb ib puag ncig suav nrog oxidation thiab txo.

Hastelloy C2000 Flanges yog ib qho tshwj xeeb alloy rau kev nyab xeeb tshuaj lom neeg cov cuab yeej siv nyob rau hauv cov chaw sib txawv, suav nrog cov kwj sib txawv nrog ferric ions.

Inconel 625 Flanges yog kev tiv thaiv corrosion-resistant thiab muaj zog npib tsib xee-roj carbon, mangle, silicur, tooj liab, thiab hlau. Cov khoom siv flange muaj lub zog tensile ntawm 930mpa thiab muaj zog los ntawm 517MPA.

17-4 Ph phuas hlau stainless yog martensitic nag lossis tawv tawv thiab hardness, corrosion tsis kam thiab zoo heev neeg kho tshuab. Nws yog cov feem ntau dav siv ntawm txhua yam nag lossis daus ua rau tawv tawv.
DupleX Steel Flanges
Ntau Cov Ntaub Ntawv
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Alloy Steel
Kurdish (Kurmanji)
ASME B36.19M Stainless Hlau Yeeb Nkab
Alloy Steel Yeeb Nkab ASTM A335 P11 Yeeb Nkab Raug
Carbon Steel Fasteners
Carbon Steel Yeeb Nkab Smls A106 Gr.b 4in Sch40
UN tsis muaj N06625 Inconel Alloy (Wellocks Weld Flanges tsis yog N06625 Yeeb Nkab Flange
Titanium tubing siab zog thiab qis ntom ntom

Ib txoj kev sib koom ua ke flanged yog tsim ntawm peb cais thiab ywj siab yog tias muaj kev sib cuam tshuam; Cov flanges, lub gaskets, thiab cov bolting; Uas tau sib sau los ntawm kev cuam tshuam lwm tus cuam tshuam, fitter. Cov kev tswj tshwj xeeb yuav tsum muaj nyob rau hauv kev xaiv thiab kev xaiv ntawm tag nrho cov muaj cov ntsiab lus kom muaj kev sib koom ua ke, uas tau siv tau xau nruj.

Nickel 200 flanges lub npib tsib xee 200 flanges yog ruaj, tshuav ruaj khov, thiab muaj kev ua tiav zoo. Ntxiv mus, cov ASTM B564 tsis pom N02200 dig muag flanges tiv taus ib puag ncig hauv nruab nrab thiab oxidizing ib puag ncig, ua rau lawv zoo meej rau kev siv hauv cov khoom siv khoom noj khoom haus.

Inconel 600 Seamless Tubes ntawm cov qauv tsis ua N06600 thiab ASTM B167 yog cov uas tsim kom muaj kev tiv thaiv ntau dhau kev tiv thaiv dhau los.

Alloy Steel F5 Flanges yog xwmfab-puab thiab yog instrumental hauv kev cuam tshuam cov kav dej ntawm nominal loj yam tsis muaj vuam thiab tsim nyog rau kev kub siab hydraulic ua haujlwm. ASTM A182 F5 LAP Cov kab sib koom tes mus los ntawm ntau lub npe, suav nrog rov qab flange, xoob hubbed flange, xoob nrov nrov flange thiab van pob zeb flange. ASTM A182 gr f5 Qhov muag tsis pom kev sib xyaw ua ke hauv petrochemical, yeeb nkab engineering, pej xeem kev pabcuam thiab dej ua haujlwm.

ASTM A312 TP316 yog tus qauv txheem rau kev sib khi, ncaj-leeg welded, thiab hnyav txias welded ustenitic kav hlau stainless hlau thiab kev corrosive service. Lub 316 seamless muaj steel yeeb nkab yog tsim los ntawm kev sib xyaw ntawm cov chromium, npib tsib, thiab molybdenum ua rau corrosion thiab xeb thiab xeb thiab xeb thiab xeb.

SMO 254 Cov kav dej tuaj yeem tiv taus cov kev ntxhov siab ntawm cov neeg muaj kev ntxhov siab thiab alloy 254 smo yeeb nkab siab ua haujlwm nyob rau hauv cov kub thiab xeb ib puag ncig.

Kev ua haujlwm siab nickel alloys rau qaub roj thiab roj teb. Incoloy 800ht tubing Harden Hardened Nickel-raws li cov khoom siv npib tsib xee siab, muaj zog, tsis tshua muaj kev sib nqus thiab corrosion heev. Incoloy 800ht tubing tau ua pov thawj yuav muaj txiaj ntsig thiab ntau yam khoom siv tau los daws tau ntau yam tsim thiab kev thov teeb meem. Incoloy 800HT tubing muaj peev xwm tiv thaiv tsis tshua muaj ntsuas kub hnyiab, nrog rau kev ua haujlwm siab ib puag ncig. Qhov zoo tshaj plaws weldability ntawm lub alloy, thiab nws muaj peev xwm tau koom nrog ua tiav zoo heev rau lwm cov alloys nrog cov sib txawv.

Inconel 600 puag ncig bar yog tseem hu ua alloy 600 lossis tsis yog n06600 \ / W.nr. 2.4816. Chemically, inci din 2.4816 bar muaj peb lub ntsiab ooying ntsiab, uas yog npib tsib xee, chromium thiab hlau thiab cov neeg npib twg yog qhov tseem ceeb ntawm cov alloy.

Invar 36 Tube OD: 0.2-6mm, wt: 0.02-2mm
Tsis muaj 6625 Wn Flangs Alloy 625, Inconel-Molybdenum alloy uas yog qhov muaj zog thiab zoo heev corrosion tsis kam. Lub zog ntawm alloy 625, tsis tau muaj txiaj ntsig los ntawm cov nyhuv stiffening ntawm molybdenum thiab niobium ntawm nws npib tsib xee-linrix. Txawm hais tias cov alloy tau tsim rau kev kub siab kub, nws cov kev sib xyaw siab yooj yim kuj muab cov theem tseem ceeb ntawm kev tiv thaiv corrosion.

Ob qho tib si cov yeeb nkab steel hlau nyob rau hauv seamless lossis welded yuav siv tau rau kev sib kis ntawm slurry. Yog li muaj ntau cov khoom siv thiab cov qauv muaj nyob kom haum rau cov kev ua haujlwm tshwj xeeb.

Cov kav dej ntawm seamless configurations tau muaj peev xwm ntau dua cov muaj peev xwm thiab lub zog tshaj lwm qib.

Cov npe lag luam sib xws: Nickel Alloy 36®, Nilo 6®, Pernifer 6®

Supler Ulllex Steel uncenlex steel unct muaj qhov siab dua lub zog thiab qis dua kev sib tw yog li cov neeg siv hluav taws xob yog li cov neeg siv hluav taws xob yog li cov neeg siv hluav taws xob, nce ntxiv rau lub caij nplooj ntoo hlav rov qab yog qhov tsim nyog.

Nickel-Tooj-based alloy 400 monel 2.4360 txias kos cov kab mob kev ntxhov siab thaum raug rau corrosive cracking thaum raug rau cov media corrosive nyob rau hauv ib puag ncig ib puag ncig. Monel 400 yog tooj liab thiab nickel raws li alloy uas nrov niaj hnub no vim nws qhov kev ua tau zoo. Lub alloy muaj kua qaub zoo heev thiab alkali tsis kam. Tsis tas li ntawd, nws muaj cov zog tensile muaj zog, ductility, zoo heev thermal condactivity, thiab tuaj yeem yog tawv los ntawm kev ua haujlwm txias. Ib qho ntxiv, nws tuaj yeem siv rau hauv cov ntawv thov nrog qhov kub thiab txias txij li rho tawm txog 538 degrees Celsius.

Cu-ni forged fittings feem ntau yog muab tso ua redrawn leeg hauv anealed mob. Kev sib xyaw ua ke ntawm kev ua qauv zoo thiab lub zog muab cov kev tsim nyog zoo. Ntxiv rau qhov no, cov fitting fittings tseem tiv taus xeb, oxidation, pitting, kev ntxhov siab thiab tawg kev ntxhov siab.
DupleX Steel Flanges
Ntau Cov Ntaub Ntawv
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Alloy Steel
Kurdish (Kurmanji)
ASME B36.19M Stainless Hlau Yeeb Nkab
Alloy Steel Yeeb Nkab ASTM A335 P11 Yeeb Nkab Raug
Carbon Steel Fasteners
Carbon Steel Yeeb Nkab Smls A106 Gr.b 4in Sch40
UN tsis muaj N06625 Inconel Alloy (Wellocks Weld Flanges tsis yog N06625 Yeeb Nkab Flange
Alloy C2000 Forged Flanges tsis ua N06200 Flanges
HT 45 Degree Luj tshib 20 x90 12.70mm A234 WP9 Cov Hluav Taws Hlau Hlau Tsis Muaj 1186279
Monel 400 YEEB RAU COV FRESE rau EYEARLASSES

A789 unc unic s31803 thiab unspes ob qib ntawm ob chav stainless hlau uas tau siv dav hauv ntau cov ntawv thov. Cov txiv neej duplex s31803 Seamless kav yog paub rau lawv cov txiv neej ua hauj lwm zoo, muaj lub zog siab, thiab weldability thiab zoo weldability. A789 yog ib qho tshwj xeeb uas tau them seamless thiab welded tub ua los ntawm duplex steel stainless hlau.

¤ ¤ cov hlab ntsha siab, kev tso tsheb hlau luam siab cia, kev hloov pauv kub (kev lag luam kub (siv tshuaj lom neeg ua lag luam).

17-4 ill yog ib tug neeg npau taws heev (Ph) statensitic stainless hlau muaj xws li tooj liab thiab niobium \ / tantalum. Cov qib kawm no muaj lub zog siab, hardness thiab corrosion tsis kam. Nws cov cuab yeej ua haujlwm tuaj yeem tsim kho kom zoo dua los ntawm kev kho cua sov thiab lub zog compressive tau ncav cuag 1100-1300 MPa (160-190 Ksi).

Ib Flange yog ib qho kev tawm tsam, daim di ncauj lossis sab nraud, tog twg los sab nraud lossis sab hauv, uas yog cov nqaj hlau xws li ib tug t-nqaj); Rau cov ntawv yooj yim tau yooj yim \ / hloov ntawm kev sib cuag nrog lwm yam khoom (raws li flange thaum kawg ntawm cov yeeb nkab, chav dej lub tog raj kheej, lossis ntawm lub ntsej muag lub koob yees duab); Los yog rau kev ruaj khov thiab taw qhia kev txav ntawm lub tshuab lossis nws cov ntu (raws li sab hauv flange ntawm tsheb ciav hlau lossis lub log los ntawm kev khiav tawm ntawm cov ciav hlau). Lo lus "Flange" kuj yog siv rau hom cuab yeej siv los ua cov flanges.