Uchungechunge lwe-SAE Vs ​​NPT

Phakathi nokuhlola kwami ​​okokufakwa kwezimboni nama-adaptha, ngihlangabezane nento ethakazelisa ngempela: imicu ye-SAE ne-NPT. Cabanga ngabo njengezinkanyezi ezingemuva kwenkundla emshinini wethu. Zingase zibonakale zifana lapho uqala nje, kodwa empeleni zihluke kakhulu endleleni eziklanywe ngayo, indlela ezisebenza ngayo, nendlela ezivala ngayo izinto. Ngijabule kakhulu ukwabelana nawe ngalokho engikufundile ngalezi zihloko. Ake singene sithole ukuthi yini ebahlukanisayo nokuthi kungani ngayinye ibalulekile ekwenzeni imishini yethu isebenze kangcono futhi ihlale isikhathi eside.

Ukuqonda Imicu ye-SAE

Incazelo Nezinhlobo Nezimpawu Zemiluko ye-SAE

Izintambo ze-SAE ziyizintambo ezinembayo ezisetshenziswa kakhulu embonini yezimoto kanye ne-hydraulics. Lezi zintambo zilandela izindinganiso ezibekwe yi-Society of Automotive Engineers (SAE). Kunezinhlobo ezahlukene ze-SAE Thread, kodwa ezivame kakhulu yi-Straight Thread O-Ring Boss (ORB). Lolu hlobo luhlanganisa intambo eqondile kanye ne-O-ring eklanyelwe ukudala uphawu. Izinga lokufakwa kweshubhu le-SAE J514 lichaza imininingwane yalolu chungechunge.

Izici zochungechunge lwe-SAE zifaka:

l  Amadayamitha alinganayo osayizi  abathile bebhawodi

l  Umklamo oqondile  ovumela ukusetshenziswa kwe- O-ring

l  Ukuhambisana nezinga le - SAE J518  lokufakwa kwe-flange

Izicelo kanye Nokufaneleka ku-Hydraulics

Kumahydraulics, imicu ye-SAE ibalulekile. Baqinisekisa ukuxhumana okungavuzi kumasistimu anengcindezi ephezulu. Ukufakwa kwe-O-Ring Boss kubaluleke kakhulu ngoba angakwazi ukuphatha uketshezi oluningi olusebenza nge-hydraulic ngaphandle kokuvuza. I-SAE Male Connector kanye ne-SAE Female Connector zibalulekile ekuxhumekeni kwe-SAE Fittings ukudala isistimu eqinile.

Izicelo zifaka:

l  Amaphampu we-Hydraulic

l  Amavalvu

l  Amasilinda

Lezi zintambo zigcina ubuqotho besistimu ngokuvimbela ukuvuza koketshezi, okubalulekile ekuphepheni nasekusebenzeni kahle.

Ubukhulu bentambo ye-SAE kanye nokuhlonzwa

Ukukhomba osayizi bochungechunge lwe-SAE kuqondile. Intambo ngayinye iqokwe ngenombolo yedeshi (isb, -4, -6, -8) ehambisana nosayizi wentambo endaweni eyishumi nesithupha ye-intshi. Isibonelo, usayizi wentambo -8 usho ukuthi ububanzi bentambo bungu-8/16 noma 1/2 intshi.

Ukuze uthole uchungechunge lwe-SAE:

1. Linganisa ububanzi bangaphandle bentambo yesilisa noma ububanzi bangaphakathi bocu lwesifazane.

2. Bala inani lemicu ngentshi ngayinye (TPI).

Izinga le-SAE J518, kanye namazinga omhlaba afana ne-DIN 20066, ISO/DIS 6162, kanye ne-JIS B 8363, inikeza umhlahlandlela obanzi wosayizi we-SAE Thread futhi uhlanganisa imininingwane efana nobukhulu be-flange clamp nosayizi abafanelekile bebhawodi.

Kafushane, imicu ye-SAE ibalulekile ezinhlelweni zamanzi, iqinisekisa uphawu oluthembekile nolusebenzayo. Osayizi nezinhlobo zabo ezimisiwe, ezifana ne-Straight Thread O-Ring Boss, zibenza bakwazi ukukhetha ochwepheshe embonini. Ukuqonda lezi zintambo kubalulekile kunoma ubani osebenza ngokufakwa kwe-hydraulic nama-adaptha.

Umhlahlandlela onemininingwane we-SAE Thread sizes and Specifications

Uhlolojikelele lwe-SAE Thread Charts nezilinganiso

Uma sikhuluma ngamashadi entambo ye-SAE, sibhekise kusistimu ehlukanisa osayizi nezilinganiso zezintambo ezisetshenziswa ekuxhumaniseni amapayipi kanye nokufakwa kwe-hydraulic. I-SAE Thread Type iyisici esibalulekile ekuqinisekiseni ukuxhumana okuphephile nokungavuziyo kumasistimu asebenza ngamanzi. Ngokungafani nentambo ye-NPT noma imicu ye-National Pipe Tapered, enomklamo ocijile, imicu ye-SAE ivame ukuqondile futhi idinga i-O-ring ukuze kusungulwe uphawu olungangeni manzi.

Imininingwane Yesixhumi se-SAE Owesilisa Nowesifazane

Kulabo kini abasebenza ne-SAE Male Connector kanye nezingxenye ze-SAE Female Connector, kubalulekile ukuqonda ukucaciswa kwazo. I-SAE Male Connector ngokuvamile inochungechunge lwangaphandle, kuyilapho i-SAE Female Connector iza nentambo yangaphakathi, eklanyelwe ukuxhuma ngaphandle komthungo. Lapho uxhuma ukufakwa kwe-SAE, kubalulekile ukufanisa izingxenye zowesilisa nowesifazane ngokunembile ukuze kuvinjelwe ukuvuza nokuqinisekisa ukusebenza kahle.

l I  -SAE Male Connector : Intambo yangaphandle, esetshenziswa ne -O-Ring Boss  kanye nezinhlelo ze-flange clamp  .

l I  -SAE Female Connector : Intambo yangaphakathi, ehambisana nezixhumi zesilisa futhi yakhelwe ukudala ukulingana okuvikelekile.

Ukuhlaziywa Okujulile kwe-SAE 45° Flare Thread Dimensions

I-SAE 45° Flare Thread iwuhlobo oluthile lokufakwa olusetshenziswa ezinhlelweni ezahlukene ze-hydraulic. Ubukhulu bayo bulinganiselwe ukuze kuqinisekiswe uxhumano olungaguquki noluthembekile. I-engeli ye-45-degree flare ibalulekile njengoba ivumela ukuvaleka kwensimbi-kuya-metal, ngekhala elivuthayo le-fatting wesilisa elicindezela ngokumelene neshubhu elivuthayo lokulinganisa kwabesifazane. Lo mklamo uqeda isidingo sezindlela ezengeziwe zokuvala ezifana ne-PTFE (Polytetrafluoroethylene) tape noma izinhlanganisela ze-sealant.

l  Osayizi beBolt : Kumiselwe ukusetshenziswa ne -SAE J518 , DIN 20066 , ISO/DIS 6162 , kanye ne -JIS B 8363.

I-l  O Ring : Ibalulekile ekudaleni uphawu olunokufakwa kwe -Straight Thread O-Ring Boss  .

I-SAE 45° Flare  – SAE J512 Imicu Ubukhulu

UCHUCHWE LWESIlisa OD & PITCH	SIZE YEDASH	UCHUNGO LWESIlisa OD		I-ID YOMCULU WESIFAZANE		TUBE SIZE
intshi - TPI		mm	intshi	mm	intshi	intshi
5/16 – 24	-05	7.9	0.31	6.8	0.27	1/8
3/8 – 24	-06	9.5	0.38	8.4	0.33	3/16
7/16 – 20	-07	11.1	0.44	9.9	0.39	1/4
1/2 – 20	-08	12.7	0.50	11.4	0.44	5/16
5/8 – 18	-10	15.9	0.63	14.2	0.56	3/8
3/4 – 16	-12	19.1	0.75	17.5	0.69	1/2
7/8 – 14	-14	22.2	0.88	20.6	0.81	5/8
1.1/16 – 14	-17	27.0	1.06	24.9	0.98	3/4

 

I-SAE 45º INVERTED FLARE – SAE J512 Imicu Ubukhulu

UCHUCHWE LWESIlisa OD & PITCH	SIZE YEDASH	UCHUNGO LWESIlisa OD		I-ID YOMCULU WESIFAZANE		TUBE SIZE
intshi - TPI		mm	intshi	mm	intshi	intshi
7/16 – 24	-07	11.1	0.44	9.9	0.39	1/4
1/2 – 20	-08	12.7	0.50	11.4	0.45	5/16
5/8 – 18	-10	15.9	0.63	14.2	0.56	3/8
11/16 – 18	-11	17.5	0.69	16.0	0.63	7/16

I-SAE PILOT O RING SEALS Pilot Male Swivel Threads Ubukhulu

UCHUCHWE LWESIlisa OD & PITCH	SIZE YEDASH	UCHUNGO LWESIlisa OD		I-ID YOMCULU WESIFAZANE		TUBE SIZE
intshi - TPI		mm	intshi	mm	intshi	intshi
5/8 – 18	-10	15.9	0.63	14.2	0.56	-6
3/4 – 18	-12	19.0	0.75	17.8	0.70	-8
7/8 – 18	-14	22.2	0.88	20.6	0.81	-10

I-Pilot Female Swivel Threads Ubukhulu

UCHUCHWE LWESIlisa OD & PITCH	USIZI KADESHI	UCHUNGO LWESIlisa OD		I-ID YOMCULU WESIFAZANE		TUBE SIZE
intshi - TPI		mm	intshi	mm	intshi	intshi
5/8 – 18	-10	15.9	0.63	14.2	0.56	-6
3/4 – 16	-12	19.0	0.75	17.5	0.69	-8
3/4 – 16	-12	19.0	0.75	17.5	0.69	-8

 

 

Ukuhlola Imiluko ye-NPT

Yiziphi Izintambo ze-NPT? – Uhlolojikelele

Imicu ye-NPT, noma imicu ye-National Pipe Tapered, iwuhlobo lwentambo yesikulufu evame ukusetshenziselwa ukuvala amalunga amapayipi. Lo mklamo uqinisekisa ukuxhumeka okungavuzi ngenxa yephrofayili yayo ecijile, eqina njengoba i-fitting ixhunywa epayipini. I-taper idala uphawu ngokucindezela imicu ndawonye, ​​ngokuvamile ithuthukiswa ngokusetshenziswa kwetheyiphu ye-PTFE noma inhlanganisela ye-sealant ukugcwalisa noma yiziphi izikhala.

Ishadi Eliningiliziwe Lobukhulu Bochungechunge lwe-NPT

Uma usebenzisana nochungechunge lwe-NPT, izilinganiso ezinembile zibalulekile. Nali ishadi lobukhulu bochungechunge lwe-NPT olwenziwe lula:

USIZI WOMCULU WE-NPT & PITCH	USIZI KADESHI	UCHUCHWE LWESIlisa OMNCANE OD		I-ID YOMCULU WESIFAZANE
intshi - TPI		mm	intshi	mm	intshi
1/8 – 27	-02	9.9	0.39	8.4		0.33
1/4 – 18	-04	13.2	0.52	11.2		0.44
3/8 – 18	-06	16.6	0.65	14.7		0.58
1/2 – 14	-08	20.6	0.81	17.8		0.70
3/4 – 14	-12	26.0	1.02	23.4		0.92
1 – 11.1/2	-16	32.5	1.28	29.5		1.16
1.1/4 – 11.1/2	-20	41.2	1.62	38.1		1.50
1.1/2 – 11.1/2	-24	47.3	1.86	43.9		1.73
2 – 11.1/2	-32	59.3	2.33	56.4		2.22
2.1/2 – 8	-40	71.5	2.82	69.1		2.72
3 – 8	-48	87.3	3.44	84.8		3.34

 

Imicu ye-NPT kuzicelo zezimboni

Imicu ye-NPT ibalulekile kuzilungiselelo ezihlukene zezimboni. Zivame ukutholakala ezinhlelweni eziphethe uketshezi olusebenzisa amanzi amaningi lapho kudingeka khona uphawu oluvikelekile, oluqinile. Ama-adaptha e-NPT asetshenziselwa ukuxhuma amapayipi namapayipi anosayizi abahlukene noma ukushintsha kusuka kwezinye izinhlobo zentambo, njengohlobo lwentambo ye-SAE, ukuya ku-NPT. Lapho uxhuma ukufakwa kwe-SAE, okungase kusebenzise uhlelo lwe-Straight Thread O-Ring Boss, ama-adaptha aqinisekisa ukuhambisana nezingxenye ezinentambo ye-NPT.

Ukuhlonza amasayizi wentambo ye-NPT namazinga

Ukuze uhlonze uchungechunge lwe-NPT, uzodinga ukwazi kokubili ububanzi bangaphandle kanye nenani lemicu iyintshi ngayinye. Nansi inkomba esheshayo:

1. Linganisa ububanzi bangaphandle bentambo yesilisa noma ububanzi bangaphakathi bocu lwesifazane.

2. Bala inani leziqongo zentambo nge-intshi eyodwa ye-span ukuze unqume i-TPI.

3. Qhathanisa lezi zilinganiso neshadi le-NPT elijwayelekile ukuze uthole usayizi ohambisanayo we-NPT.

Kubalulekile ukuqaphela ukuthi uchungechunge lwe-NPT ludinga ukuhlanganyela okufanele ukuze kuzuzwe ukulingana okuvikelekile. Lokhu kusho ukuthi imicu yesilisa neyesifazane kufanele iboshwe ndawonye ngokwanele ukuze kuvinjelwe ukuvuza, kodwa ingaqini kakhulu ukuze idale umonakalo.

 

Ukuhlaziywa Okuqhathanisayo kwe-SAE vs. NPT Threads

Idizayini yochungechunge: I-Sight vs. Tapered

Lapho uhlola I-SAE Thread Type kanye ne-NPT Thread, umehluko obalulekile uyabonakala emiklamo yabo. Imicu ye-SAE, ikakhulukazi i-Straight Thread O-Ring Boss, ibonakala ngephethini yayo yentambo eqondile. Lo mklamo uvumela ububanzi obungaguquki kulo lonke ubude bentambo. Ngokuphambene, i-National Pipe Tapered Threads (NPT) ibonisa iphrofayela ecijile, incipha njengoba iqhubeka ku-eksisi yochungechunge.

l  SAE : Imicu eqondile, ububanzi obufanayo.

l  I-NPT : Izintambo eziqoshiwe, ububanzi buyancipha eduze kwentambo.

Amasu Okuvalwa: O-Ring vs. Taper kanye nama-Sealants

Ukuvala ubuqotho kubalulekile ekuvimbeleni ukuvuza. I-SAE Male Connector kanye ne-SAE Female Connector bavame ukusebenzisa i-O-Ring ukuze benze uphawu. Le O-Ring ihlala emseleni futhi iminya lapho iqina, yenze umgoqo ekuvuzeni. Ngaleso sikhathi, idizayini ecishiwe yochungechunge lwe-NPT idinga indlela ehlukile. I-taper ivumela imicu ukuthi ilingane ngokuqinile njengoba iboshiwe, idala uxhumano olungangeni manzi. Ukuze kuthuthukiswe lo mphumela, itheyiphu ye-PTFE (Polytetrafluoroethylene) noma inhlanganisela ye-sealant ngokuvamile isetshenziswa emicu ye-NPT.

l  SAE : Isebenzisa i -O-Ring  ukuze ivalwe.

l  I-NPT : Ithembele ekwakhiweni kwe-tapered nama -sealant engeziwe  ukuze kuxhumeke okungavuzi.

Izinzuzo Zesimo: Isetshenziswa nini i-SAE noma i-NPT

Ukukhetha phakathi kokufakwa kwe-SAE ne-NPT kuvame ukuncika kuhlelo oluthile namazinga omkhakha. Ukufakwa kwe-tube ye-SAE J514 kusetshenziswa kakhulu ezinhlelweni zamanzi ngenxa yezindlela zazo zokuvala eziqinile kanye nekhono lokumelana nezingcindezi eziphezulu. Zenzelwe ukuhlangabezana namazinga afana ne-SAE J518, DIN 20066, ISO/DIS 6162, kanye ne-JIS B 8363. Lokhu kufakwa kulungele ukudala uxhumano oluthembekile lapho ulawula uketshezi olusebenzisa amanzi.

Ukufakwa kwe-NPT, ngakolunye uhlangothi, kuvame ukutholakala kumasistimu amapayipi kanye nomoya ojwayelekile. I-American National Standard Pipe Thread (ANSI/ASME B1.20.1) iyindinganiso evamile yalezi zicucu ezicijile. Ama-adaptha e-NPT alungele izinhlelo zokusebenza lapho intambo eqondile ingadingeki noma lapho ukusetshenziswa kwe-O-Ring kungenzeki khona.

l  SAE : Okuncanyelwayo kumasistimu we-hydraulic high-pressure.

l  NPT : Okujwayelekile kumapayipi kanye nezicelo zengcindezi ephansi.

Imikhuba Engcono Kakhulu Yokufaka I-SAE kanye ne-NPT Threaded Fittings

Uma uxhuma okokufaka kwe-SAE, ukunemba kubalulekile. Qala ngokukhetha i-SAE Male Connector efanele noma i-SAE Female Connector. Qinisekisa ukuhambisana namazinga afana ne-SAE J518, DIN 20066, noma i-ISO/DIS 6162. Ukuze uthole ukulingana okuvikelekile, sebenzisa i-O-ring ne-flange clamp. Qondanisa osayizi bebhawodi nokucaciswa ukuze ugweme ukukhumula imicu.

Izixhumanisi zochungechunge lwe-NPT, ezibuswa yi-ANSI/ASME B1.20.1, zidinga indlela ehlukile. Faka iteyiphu ye-PTFE noma inhlanganisela efanelekile yokuvala uphawu ku-MPT ukuze uqinisekise ukuthi uphawu olungangeni manzi ngenxa yomklamo wabo ocijile. Gwema ukuqinisa ngokweqile; kungabangela ukuqhekeka noma ukulimaza izintambo.

Ukunakekela kanye nokuxazulula Izinkinga Ezivamile

Ukuhlola okuvamile kubalulekile kuma-hydraulic systems. Bheka izimpawu zokuguga ekufakweni kweshubhu ye-SAE J514 nama-adaptha e-NPT. Uma kuvuza, hlola i-O-Ring Boss bese uyishintsha uma yonakele. Ngezinkinga zochungechunge lwe-NPT, hlola ukuthi itheyiphu ye-PTFE idinga ukuphinda isetshenziswe. Njalo yiba nekhithi yokulungisa etholakalayo enama-O-rings ayisipele, inhlanganisela ye-sealant, netheyiphu ye-PTFE.

Ukuqinisekisa Ukuphila Okude kanye Nempumelelo KumaHydraulic Systems

Ukuze ugcine ubuqotho besistimu, landela lezi zinyathelo:

1. Sebenzisa uketshezi oluyi-hydraulic olulungile.

2. Hlela ukuhlolwa okuvamile kwakho konke ukuxhumana.

3. Shintsha izingxenye ezigugile ngokushesha.

4. Gcina amapayipi anentambo nezixhumi zamapayipi kuhlanzekile emfucumfucwini.

5. Qaphela izinguquko ekusebenzeni kwesistimu.

Ngokuthobela le mihlahlandlela, ungaqinisekisa ukuxhumana okungavuzi futhi welule impilo yesistimu yakho ye-hydraulic. Khumbula, inketho efanele ye-SAE Thread Type noma i-NPT Thread ingenza umehluko ekudaleni izimpawu ezisebenza kahle nezihlala njalo.

Isiphetho

Sihlole ama-nuances ochungechunge lwe-SAE ne-NPT. Ukuphindaphinda, imicu ye-SAE yakhelwe amasistimu asebenza ngamanzi, afaka intambo eqondile enendandatho ye-O yokuvala. I-SAE Male Connector kanye ne-SAE Female Connector badlala indima ebalulekile ekuqinisekiseni ukuxhumana okungavuzi. Ngakolunye uhlangothi, imicu ye-NPT, noma imicu ye-National Pipe Tapered, inomklamo ocijile odala uphawu ngokuqina kokulingana, okuvame ukuthuthukiswa nge-PTFE tape noma inhlanganisela ye-sealant.

Ukuqonda umehluko kubalulekile. Izinhlobo ze-SAE Thread, njenge-Straight Thread O-Ring Boss ezitholakala ekufakweni kweshubhu ye-SAE J514, zithembele ku-O-ring ukuze zenze uphawu oluvikelekile. Ngokuphambene, imicu ye-NPT, evumelana ne-ANSI/ASME B1.20.1, yenza isigxivizo ngokuphazamiseka phakathi kwemicu.

Ukukhetha uhlobo lochungechunge olulungile akukwazi ukweqiwa. Ukungafani kungaholela ekuvuzeni, amasistimu onakalisiwe, kanye nokwenyuka kwesikhathi sokuphumula. Isibonelo, lapho uxhuma ukufakwa kwe-SAE ohlelweni olusebenza ngamanzi, qinisekisa ukuhambisana namazinga afana ne-SAE J518, DIN 20066, ISO/DIS 6162, noma i-JIS B 8363. Lawa mazinga akhuluma ngobukhulu, okuhlanganisa osayizi bebhawodi kanye nezidingo ze-flange clamp, ukuqinisekisa ukulingana okuvikelekile nokufanelekile.

Ezindaweni zokufakwa kwe-hydraulic, Uhlobo lwe-SAE Thread luvame ukuxhumana noxhumo lwe-O-Ring Boss, kuyilapho intambo ye-NPT ivamile ekusetshenzisweni kwamapayipi okuvamile. Uma usebenzisa ama-adaptha e-NPT ohlelweni oludizayinelwe amazinga e-SAE, khumbula izindlela ezihlukene zokuvala. I-O-ring ihlinzeka ngoxhumano olungangeni manzi olungaguquki ezinhlelweni ze-SAE, kuyilapho idizayini ecishiwe ezinhlelweni ze-NPT idinga ukubandakanyeka okucophelelayo ukuze kuzuzwe uxhumano olungavuzi.

 

Sengiphetha, ubuqotho bokuxhumana kwakho—kungakhathaliseki ukuthi kuhilela amapayipi awuntambo, ukufakwa kwamapayipi, noma ukufakwa kwe-hydraulic—kuncike ekukhombeni okulungile nokusetshenziswa kohlobo lwe-SAE Thread noma i-NPT Thread. Ngaso sonke isikhathi bhekisela kumazinga omkhakha, njengalawo ashiwo, ukuze aqondise ukukhetha kwakho. Khumbula, uhlobo lochungechunge olulungile aluqinisekisi kuphela ukulingana okuvikelekile kodwa futhi lugcina ukusebenza kahle nokuphepha kwalo lonke uhlelo lwakho.