Ruihua Hardware's How-To Guide on Pipe Fittings: Master The Basics Today!

Cov yeeb nkab fittings yog cov khoom tseem ceeb uas ua kom tsis muaj paug, txhim khu kev qha kev sib txuas hauv cov kua dej thiab roj siv thoob plaws hauv kev tsim khoom thiab kev lag luam. Cov lus qhia dav dav no suav nrog txhua yam los ntawm cov qauv yooj yim haum thiab cov qauv xov rau kev xaiv cov khoom siv, ntawv pov thawj zoo, thiab kev coj ua zoo tshaj plaws. Txawm hais tias koj tab tom xaiv hydraulic adapters rau cov tshuab hluav taws xob siab lossis pneumatic fittings rau cov khoom siv automation, kev nkag siab txog cov ntsiab lus no yuav pab koj txiav txim siab paub uas tiv thaiv cov nqi qis thiab ua kom muaj kev ntseeg siab.

Nkag siab cov yeeb nkab fittings thiab adapters hauv paus

Dab tsi yog cov yeeb nkab fittings thiab adapters

Cov yeeb nkab haum yog ib qho khoom siv tsim los koom nrog, hloov pauv, lossis txiav cov ntu ntawm cov yeeb nkab hauv cov kua dej thiab cov pa xa tawm. Cov cuab yeej ua haujlwm tau zoo no tsim cov kev sib txuas ruaj ntseg uas tswj kev ua haujlwm ncaj ncees raws li qhov sib txawv ntawm qhov siab thiab qhov kub thiab txias.

Ib qho adapter yog ib qho tshwj xeeb haum uas hloov ntawm ob qhov sib txawv ntawm cov yeeb nkab loj, cov khoom siv, lossis cov qauv xov, ua kom muaj kev sib raug zoo yam tsis tau hloov kho tag nrho cov kab ke. Adapters daws cov teeb meem kev sib txuas thaum cuam tshuam cov cuab yeej cuab tam nrog cov khoom siv niaj hnub lossis thaum sib koom ua ke los ntawm cov tuam txhab sib txawv.

Fittings thiab adapters ua lub luag haujlwm tseem ceeb hauv kev ua kom [tso tawm, kev sib txuas ruaj khov](Tsab ntawv xov xwm no tshwm sim thawj zaug https://www.jianzhi pipefitting.com/2025/01/22/what-are-the-differences-between-pipe-adaptors-and-reducers/) hla cov kua dej thiab cov pa roj, tiv thaiv cov nqi poob qis thiab kev phom sij ib puag ncig.

Hom hom thiab terminology

Feem ntau siv fitting hom muaj xws li:

• Lub luj tshib - Hloov cov kev taw qhia ntws ntawm 45 °, 90 °, lossis cov ces kaum kev cai

• Tee - Tsim ib ceg kev sib txuas rau kev sib cais lossis kev sib txuas ntws

• Reducer - Txuas cov kav dej sib txawv ntawm qhov sib txawv thaum tswj kev ntws

• Coupling - Koom nrog ob lub kav dej ntawm qhov loj thiab cov xov zoo tib yam

• Union - Muab kev sib txuas tshem tau rau kev saib xyuas

Cov ntsiab lus tseem ceeb suav nrog kev sib txuas ntawm txiv neej / poj niam (sab nraud vs. internal threads), kev teeb tsa lub qhov (socket configurations, thread pitch specifications), seal type, and pressure class ratings. Nkag siab txog hydraulic fittings thiab industrial adapters terminology kom meej meej specification thiab xaj.

Xov Standard thiab sizing

Cov qauv xov tseem ceeb ua haujlwm sib txawv hauv cheeb tsam thiab daim ntawv thov yuav tsum tau ua:

Lub hom phiaj	Thaj tsam	Daim ntawv thov	Hom foob
BSP	Europe/Asia	General kev lag luam	Parallel threads nrog gasket
BSPT	Europe/Asia	Tapered daim ntawv thov	Self-sealing taper
NPT	North America	Roj & roj	Self-sealing taper
Metric	Ntiaj teb no	Automotive/hydraulic	O-ring zawj
JIC	Ntiaj teb no	High-siab hydraulic	37° flare seat
Sae	North America	Mobile hydraulic	O-ring ntsej muag foob

Sizing conventions txawv ntawm nominal bore (internal txoj kab uas hla) thiab sab nraud txoj kab uas hla. Cov lus hloov pauv pab txhais BSP ↔ NPT sib npaug rau cov phiaj xwm sib xws.

Xaiv cov fittings zoo rau kev tsim khoom thiab kev siv hauv kev lag luam

Cov khoom xaiv rau siab thiab corrosion kuj

Cov tsev neeg cov khoom siv ua haujlwm tshwj xeeb rau daim ntawv thov:

Cov pa roj carbon steel muaj peev xwm ua kom muaj peev xwm ua tau zoo thiab muaj txiaj ntsig zoo rau kev siv dav dav. Nws ua haujlwm siab txog li 10,000 psi tab sis yuav tsum muaj kev tiv thaiv corrosion nyob rau hauv ib puag ncig hnyav.

Stainless hlau (304/316) muab kev tiv thaiv corrosion zoo heev rau cov khoom noj, tshuaj, thiab dej hiav txwv. Qib 316 muaj cov tshuaj chloride zoo dua rau kev siv ntug hiav txwv.

Brass xa cov machinability zoo heev thiab nruab nrab corrosion tsis kam rau cov dej thiab roj ua haujlwm hauv qab 1,000 psi. Nws yog qhov zoo tagnrho rau kev ntsuas ntsuas thiab kev siv qis qis.

Bronze muaj kev hnav tsis kam thiab lub zog rau kev sib txuas ntawm lub twj tso kua mis thiab lub valve hauv marine thiab dej hauv dej.

Polymer cov ntaub ntawv (PVC, PTFE) muab lub teeb yuag, tshuaj tiv thaiv kev daws teeb meem rau corrosive xov xwm ntawm qhov siab tshaj 300 psi.

Cov khoom xaiv ncaj qha cuam tshuam siab ntsuas thiab corrosion ib puag ncig compatibility.

Kev ntsuas ntsuas thiab ntsuas kub

Cov chav kawm siab dav thiab lawv cov ntawv thov raug:

• 150 psi - Dej tsis tshua muaj siab, HVAC systems

• 300 psi - Muaj dej, compressed cua

• 1,000 psi - Hydraulic rov qab kab, nruab nrab-siab tshuab

• 10,000 psi - High-pressure hydraulic, roj teb khoom

Qhov kub thiab txias feem ntau ncav cuag -40 ° C mus rau 250 ° C rau cov hlau fittings, nrog rau cov kev txwv tshwj xeeb nyob ntawm cov khoom foob. Ruihua muaj kev lag luam-ua fittings mus txog 10,000 psi thoob plaws -40 ° C mus rau 250 ° C kub ntau yam, tso lub hom raws li qhov kev xaiv rau kev thov kev lag luam.

Ua raws li hydraulic thiab pneumatic qhov yuav tsum tau ua

Hydraulic systems ua haujlwm ntawm qhov siab dua (1,000-10,000 psi) nrog cov kua dej tsis sib haum, xav tau cov hlau-rau-hlau ntsaws ruaj ruaj lossis high-durometer elastomers. Cov tshuab no xav tau kev zam kom meej thiab kev tsim kho kom ruaj khov los tiv thaiv kev puas tsuaj loj.

Pneumatic systems siv compressible gases ntawm qis dua siab (80-300 psi), feem ntau siv elastomeric ntsaws ruaj ruaj rau nqi-zoo thiab yooj yim ntawm kev sib dhos. Ceev-disconnect nta yog ib qho rau kev saib xyuas tsis tu ncua.

Kev xaiv cov khoom siv foob muaj xws li NBR (roj av tsis kam), EPDM (huab cua tsis kam), thiab PTFE (chemical compatibility) raws li hom kua dej thiab qhov kub thiab txias.

Compatibility nrog cov qauv xov sib txawv

Txheeb xyuas cov xov xwm txheej txheem uas twb muaj lawm ua ntej xaj kom tsis txhob raug nqi tsis sib haum. Xov gauges thiab calipers pab txheeb xyuas cov kev sib txuas tsis paub thaum lub sij hawm retrofits lossis expansions.

Adapters txuas cov qauv tsis sib haum thiab tiv thaiv kev hla kev puas tsuaj. Kev hloov pauv ntau suav nrog BSP-rau-NPT, metric-rau-JIC, thiab SAE-rau-ORFS hloov pauv.

Daim ntawv qhia kev hloov dua siab tshiab rau kev siv tswv yim, tshwj xeeb tshaj yog thaum sib koom ua ke cov khoom siv los ntawm ntau lub tuam txhab lossis cheeb tsam.

Cov qauv zoo thiab ntawv pov thawj rau fittings

Cov txheej txheem thoob ntiaj teb thiab ntawv pov thawj (ISO, API, DIN)

Cov ntawv pov thawj tseem ceeb ua kom zoo ib yam thiab ua haujlwm zoo:

• ISO 9001 - Kev tswj hwm qhov system ntawv pov thawj

• API 6A - Cov khoom siv roj av tshwj xeeb rau cov khoom siv lub taub hau

• DIN 2605 - Kev tsim cov yeeb nkab haum rau qhov ntev

• ASME B16.5 - Flanged haum specifications rau cov hlab ntsha siab

Ruihua tuav tag nrho ISO 9001 ntawv pov thawj thiab nruj me ntsis ua raws li API thiab DIN cov qauv, ua kom ntseeg tau zoo tshaj thoob ntiaj teb kev sib raug zoo thiab kev ntseeg siab piv rau cov neeg muab khoom txheem.

Cov yam ntxwv zoo tseem ceeb los ntsuas

Daim ntawv txheeb xyuas qhov tseem ceeb rau kev ntsuam xyuas haum:

• Dimensional raug - kam rau ua nyob rau hauv ± 0.1 hli rau qhov tseem ceeb qhov ntev

• Nto tiav - Ra ≤ 0.8 µm rau qhov siab-siab sealing nto

• Khoom hardness - Rockwell C ≥ 30 rau steel Cheebtsam

• Leak-tight kev ua tau zoo - Hydrostatic xeem dhau ntawm 1.5 × ntsuas siab

• Traceability - Batch / serial tooj rau kev taug qab zoo

Cov cwj pwm no cuam tshuam ncaj qha rau kev ntseeg siab thiab kev saib xyuas raws li qhov haum ntawm kev pabcuam lub neej.

Kev sim cov txheej txheem rau kev ua haujlwm tsis zoo

Cov txheej txheem xeem cov txheej txheem kom ntseeg tau tias kev ua tau zoo:

Hydrostatic siab ntsuas pressurizes fittings nrog dej mus rau 1.5 × rated siab rau kev kuaj pom. Qhov kev ntsuam xyuas tsis muaj kev puas tsuaj no txheeb xyuas qhov kev sib khi ruaj khov hauv kev ua haujlwm.

Kev ntsuas pneumatic tawg ntsuas ntsuas qhov kawg tsis ua haujlwm siab siv cov cua compressed, tsim kom muaj kev nyab xeeb margins rau cov ntawv thov tseem ceeb.

Helium leak detection qhia txog micro-leaks ≤ 10⁻⁹ mbar·L / s siv huab hwm coj spectrometry, qhov tseem ceeb rau lub tshuab nqus tsev thiab lub siab huv.

Ruihua ua nruj me ntsis 100% kev soj ntsuam thiab ntsuas hydrostatic ntawm txhua yam khoom, kom ntseeg tau tias kev xa khoom zoo tshaj plaws uas tshaj cov qauv kev lag luam.

Sab saum toj manufacturers thiab ua lag luam toj roob hauv pes

Cov thawj coj thoob ntiaj teb thiab kev sib koom ua lag luam nthuav dav

Cov tuam txhab lag luam hauv cov yeeb nkab haum kev lag luam suav nrog Ruihua Hardware , Topa , Jiayuan Hydraulic , thiab Ningbo Laike . Cov tuam txhab no ua haujlwm rau ntau lub lag luam los ntawm tsheb thiab kev tsim kho rau roj & roj thiab kev siv dej hiav txwv.

Tuam Tshoj tuam ntxhab sib sau ua ke xa tawm ntau dua 90% ntawm lub ntiaj teb hydraulic adapters, qhia txog kev lag luam tseem ceeb los ntawm kev sib tw nqi thiab kev tsim khoom.

Suav manufacturers piv rau Western cov neeg sib tw

Cov kev sib tw tseem ceeb:

• Tus nqi & ntim - Suav tuam txhab muab 20-40% tus nqi qis dua nrog cov peev txheej ntau lawm

• Customization - Muaj peev xwm OEM / ODM muaj peev xwm nrog kev tsim qauv sai thiab siv cuab yeej

• Cov ntawv pov thawj - Cov tuam txhab sab hnub poob tsom rau cov ntawv pov thawj niche (UL, CE) thiab hwm cov ntsiab lus tshwj xeeb

• Lub Sijhawm Lead - Cov neeg muag khoom hauv Suav feem ntau muab 2-4 lub lis piam coj mus kuaj rau cov khoom catalog

Qhov kev sib tw toj roob hauv pes no muab cov neeg yuav khoom yooj yim hauv kev ntsuas tus nqi, qhov zoo, thiab cov khoom xa tuaj.

Ruihua Hardware txoj kev sib tw

Ruihua qhov tshwj xeeb sib txawv muaj xws li:

• Kev xa tawm thoob ntiaj teb mus rau> 90 lub teb chaws txij li xyoo 2015, ua pov thawj kev lees paub thoob ntiaj teb zoo

• Kev txhawb nqa OEM / ODM nrog kev lag luam-ua qauv nrawm nrawm thiab muaj peev xwm siv tau

• 100% kev soj ntsuam raws tu qauv nrog kev tswj hwm nruj tshaj plaws ntawm txhua theem tsim khoom

• 'Ua lag luam yooj yim dua' lub tswv yim hais txog kev ua haujlwm zoo tom qab muag thiab cov kws tshaj lij kev txhawb nqa

Cov txiaj ntsig tseem ceeb no ua haujlwm Ruihua ua tus khub txhim khu kev qha tshaj plaws rau kev thov kev lag luam.

Cov lus qhia txog kev yuav khoom thiab kev sib koom ua ke zoo tshaj plaws

Kev ntsuas qhov project xav tau thiab specs

Tshem tawm cov ntaub ntawv tseem ceeb los ntawm cov ntawv qhia tshwj xeeb:

• Chav Kawm Siab - Kev khiav hauj lwm thiab kev ntsuas siab

• Qhov kub thiab txias - qhov tsawg kawg nkaus thiab siab tshaj qhov kev pabcuam kub

• Khoom specification - Base hlau thiab txheej yuav tsum tau

• Xov hom - Standard, pitch, thiab class designation

• Kev sib txuas loj - Nominal txoj kab uas hla thiab qhov tseeb qhov ntev

• Txoj kev sealing - Gasket, O-ring, los yog hlau-rau-hlau foob

Tsim ib daim ntawv teev cov txheej txheem los xyuas kom meej qhov kev soj ntsuam xyuas nyob rau hauv cov haujlwm.

Customization, OEM thiab ODM kev xaiv

Cov txheej txheem tsim kev cai ua raws li cov kauj ruam no:

1. Xa CAD daim duab nrog qhov ntev kam rau ua thiab cov khoom siv tshwj xeeb

2. Tau txais cov lus hais nrog rau cov nqi cuab yeej thiab cov xaj xaj tsawg kawg nkaus

3. Pom zoo tus qauv tom qab qhov seem thiab kev ua tau zoo

4. Pib tsim khoom nrog kev pom zoo tswj cov chaw kuaj xyuas zoo

Yam tsawg kawg nkaus txiav txim ntau npaum li cas ntawm 500-1,000 daim rau kev cai steel fittings, nyob ntawm qhov nyuaj thiab cov cuab yeej yuav tsum tau ua.

Cov khoom siv saw kev ntseeg siab, lub sijhawm ua khoom lag luam thiab kev npaj cov khoom muag

Ntsuas cov peev txheej ntawm cov khoom siv:

• Tus nqi xa khoom raws sijhawm - Kev ua haujlwm keeb kwm> 95% rau cov neeg xa khoom tseem ceeb

• Cov cai tswj hwm kev nyab xeeb - Cov khoom lag luam tsis muaj rau kev xav tau hloov pauv

• Logistics koom tes - txhim khu kev qha freight thiab kev lis kev cai clearance

Ruihua lub sij hawm ua tus qauv txhim khu kev qha muaj xws li 2-4 lub lis piam rau cov khoom catalog thiab 4-6 lub lis piam rau kev txiav txim, ua kom muaj txiaj ntsig zoo heev.

Kev them nyiaj yug tom qab muag, warranty thiab traceability

Ruihua muab kev lag luam ua ntej kev txhawb nqa tom qab xa khoom:

• 12-hli txwv warranty npog cov khoom tsis xws luag thiab kev tsim khoom tsis zoo

• Kev them nyiaj yug channel - Tus thawj tswj hwm tus account tshwj xeeb, tus xov tooj hu xovtooj, thiab online pib pib

• Traceability system - Batch codes luam tawm ntawm txhua qhov haum pab kom nrhiav tau zoo thiab rov qab tswj xyuas

Cov qauv txhawb tshwj xeeb no ua kom muaj kev sib koom tes ntev ntev thiab kev daws teeb meem sai. Mastering yeeb nkab haum cov hauv paus yuav tsum tau nkag siab txog hom khoom, cov khoom siv, cov qauv zoo, thiab cov khoom muaj peev xwm. Kev vam meej nyob ntawm qhov sib piv cov ntsiab lus rau cov ntawv thov thaum xav txog qhov siab, qhov kub thiab txias, thiab corrosion. Cov ntawv pov thawj zoo xws li ISO 9001 thiab cov txheej txheem xeem nruj kom ntseeg tau tias kev ua tau zoo hauv cov tshuab tseem ceeb. Thaum xaiv cov chaw muag khoom, ntsuas cov peev txheej tsim khoom, cov kev xaiv kho kom haum, thiab kev txhawb nqa tom qab muag nrog rau kev txiav txim siab nqi. Ruihua Hardware txoj kev ua kom zoo tshaj plaws rau kev ua tau zoo, muaj peev xwm kho tau dav dav, thiab cov kev pabcuam thoob ntiaj teb tshwj xeeb ua rau lawv tus khub txhim khu kev qha tshaj plaws rau kev tsim cov yeeb nkab haum thoob plaws ntau hom kev siv thiab kev lag luam.

Cov lus nug nquag

Kuv yuav hloov li cas ntawm BSP, NPT thiab lwm cov qauv xov?

BSP siv cov xov sib txuas nrog cov gaskets thaum NPT siv cov xov sib txuas ntawm tus kheej. Siv xov gauges los txheeb xyuas cov kev sib txuas uas twb muaj lawm, tom qab ntawd sab laj kab ntawv hloov dua siab tshiab los yog siv cov khoom siv adapter los txuas cov qauv sib txawv. Cov kev hloov pauv feem ntau suav nrog 1/4' BSP ≈ 1/4' NPT, tab sis txheeb xyuas kev sib raug zoo nrog lub siab thiab kev sib khi. Ruihua muaj cov kev hloov pauv cov xov tooj sib txuas txhawb nqa BSP, BSPT, NPT, metric, ORFS, SAE, thiab JIC cov qauv los tiv thaiv kev hla xov thiab xyuas kom muaj kev sib txuas sib txuas.

Dab tsi yog cov nqi sib pauv ntawm cov qauv thiab kev cai adapters?

Tus qauv adapters raug nqi 50-80% tsawg dua li kev cai tsim vim kev lag luam ntawm nplai thiab cov cuab yeej uas twb muaj lawm. Kev cai adapters xav tau cov nqi pib siv ($ 500-5,000) thiab qhov kev txiav txim yam tsawg kawg nkaus (feem ntau yog 500 daim rau Ruihua cov kev cai steel fittings), tab sis muab cov kev daws teeb meem rau cov ntawv tshwj xeeb. Cov qauv fittings muab cov txiaj ntsig zoo rau lub sijhawm ntev los ntawm kev hloov pauv tau yooj yim thiab lub sijhawm luv luv. Ruihua muab ob qho kev xaiv nrog OEM / ODM kev txhawb nqa thiab 2-4 lub lis piam tus qauv xa tawm piv rau 4-6 lub lis piam rau kev txiav txim.

Yuav ua li cas Ruihua ua kom muaj kev ua haujlwm nruj hauv cov ntawv thov siab?

Ruihua ua 100% hydrostatic kuaj ntawm 1.5 × rated siab ntawm txhua qhov haum, nrog rau qhov ntsuas qhov ntev li ntawm ± 0.1mm kam rau ua thiab qhov tseeb qhov tiav (Ra ≤ 0.8 µm). Txhua qhov haum tau kuaj xyuas cov khoom siv hardness (Rockwell C ≥ 30 rau steel) thiab tau txais batch coding kom tiav traceability. High-pressure fittings tau txais kev kuaj helium ntxiv los kuaj xyuas micro-leaks hauv qab 10⁻⁹ mbar·L / s. Kev tsim khoom ua raws li ISO 9001 cov qauv nrog fittings ntsuas txog 10,000 psi thiab kub ntawm -40 ° C txog 250 ° C.

Dab tsi tom qab-muag kev txhawb nqa Ruihua muab rau cov neeg siv khoom thoob ntiaj teb?

Ruihua muab cov thawj tswj hwm tus account rau cov lag luam loj, cov xov tooj sib tham ntau hom lus, thiab cov ntawv pib hauv online rau kev taug qab qhov teeb meem. Lub tuam txhab muaj 12-hli txwv warranty npog cov khoom tsis xws luag nrog cov khoom hloov pauv xa los ntawm kev tsim kev sib txuas lus mus rau ntau dua 90 lub teb chaws. Cov ntaub ntawv txuj ci muaj nyob rau hauv ntau hom lus, thiab kev txhawb nqa kev pabcuam tuaj yeem npaj los ntawm cov koom tes hauv cheeb tsam. Lub 'ua lag luam yooj yim' lub tswv yim ua kom muaj kev txhawb nqa nrog ua tiav traceability ntawm batch codes ntawm txhua qhov haum.

Ruihua lub fittings puas tuaj yeem siv rau hauv cov khoom noj khoom haus lossis chaw muag tshuaj?

Yog lawm, Ruihua manufactures stainless hlau fittings nyob rau hauv 304/316 qib uas ua tau raws li FDA cov khoom yuav tsum tau rau zaub mov thiab tshuaj daim ntawv thov. Cov fittings no muaj cov khoom ua kom huv si (Ra ≤ 0.4 µm), cov qauv tsim tsis pub muaj qhov tsis zoo, thiab FDA pom zoo cov ntaub ntawv foob suav nrog EPDM thiab PTFE. Cov ntaub ntawv ua tiav suav nrog cov ntawv pov thawj cov ntaub ntawv thiab cov ntawv pov thawj tiav rau kev ua raws cai. Kev cai electropolishing cov kev pab cuam muaj rau ultra-siab purity daim ntaub ntawv uas yuav tsum tau txhim kho corrosion kuj thiab cleanability.

Kuv tuaj yeem tshawb xyuas tus neeg muag khoom cov ntaub ntawv tswj hwm zoo li cas ua ntej yuav ntau?

Thov ISO 9001 daim ntawv pov thawj, cov ntaub ntawv tshaj tawm cov khoom lag luam tsis ntev los no, cov ntaub ntawv tshuaj xyuas qhov ntev, thiab cov ntaub ntawv pov thawj. Nug rau qhov chaw ncig xyuas, cov ntaub ntawv txheeb xyuas thib peb, cov neeg siv khoom siv, thiab cov txheej txheem kho kom raug. Tshawb xyuas cov cuab yeej ntsuas ntsuas cov ntaub ntawv thiab cov txheej txheem traceability. Ruihua muab tag nrho cov pob khoom zoo nrog txhua cov khoom xa tuaj nrog rau cov txiaj ntsig tshwj xeeb hydrostatic test, cov ntawv qhia qhov ntev, thiab cov ntaub ntawv pov thawj. Lawv 100% cov txheej txheem tshuaj xyuas thiab ua raws li API thiab DIN cov qauv ua kom pom tseeb tag nrho thiab kev ruaj ntseg zoo.