Mu kunoonyereza kwange ku bikozesebwa mu makolero ne adapters, nfunye ekintu ekinyuvu ennyo: SAE ne NPT threads.Balowoozeeko ng’emmunyeenye eziri emabega w’empenda mu byuma byaffe.Ziyinza okulabika ng’ezifaanagana ku kusooka, naye mu butuufu za njawulo nnyo mu ngeri gye zikoleddwamu, engeri gye zikolamu, n’engeri gye zisiba ebintu.Nsanyuse nnyo okubaganya nammwe bye njize ku threads zino.Ka tubuuke mu mazzi tuzuule ekiziyawula n’ensonga lwaki buli emu nkulu mu kukola ebyuma byaffe okukola obulungi n’okuwangaala.
Okutegeera Emiguwa gya SAE
Ennyonyola n’Ebika n’Engeri za SAE Threads
Obuwuzi bwa SAE buwuzi obutuufu obukozesebwa ennyo mu by’emmotoka n’amazzi.Emiguwa gino gigoberera omutindo ogwateekebwawo ekibiina ekigatta bayinginiya b’emmotoka ekya Society of Automotive Engineers (SAE).Waliwo Ebika by’Obuwuzi bwa SAE obw’enjawulo, naye ekisinga okumanyibwa ye Straight Thread O-Ring Boss (ORB).Ekika kino kirimu obuwuzi obugolokofu n’empeta ya O ekoleddwa okukola ekiziyiza.Omutindo gwa SAE J514 tube fittings gulaga ebikwata ku wuzi zino.
Ebifaananyi by’obuwuzi bwa SAE mulimu:
l Dyaamu za yunifoomu ku sayizi za bulooti ezenjawulo
l Dizayini engolokofu esobozesa okukozesa empeta ya O
l Okukwatagana n’omutindo gwa SAE J518 ku bikozesebwa mu flankisi
Enkozesa n’Obukwatagana mu Hydraulics
Mu by’amazzi, obuwuzi bwa SAE bukulu nnyo.Zikakasa okuyungibwa okutaliimu kukulukuta mu nkola za puleesa eya waggulu.Ebintu bya O-Ring Boss bikwatagana nnyo kubanga bisobola okukwata amazzi ag’amazzi ag’enjawulo nga tegakulukuta.SAE Male Connector ne SAE Female Connector bikulu nnyo mu Connecting SAE Fittings okukola enkola ennywevu.
Okusaba mulimu:
l Pampu z’amazzi
l Valiva ezikola
l Siliinda ezikola
Obuwuzi buno bukuuma obulungi bw’enkola nga buziyiza amazzi okukulukuta, ekintu ekikulu ennyo mu bukuumi n’obulungi.
SAE Thread Sizes n'okuzuula
Okuzuula sayizi z’obuwuzi bwa SAE kyangu.Buli wuzi eragiddwa ennamba ya daasi (okugeza, -4, -6, -8) ekwatagana n’obunene bw’obuwuzi mu bitundu kkumi na mukaaga ebya yinsi.Okugeza, sayizi y’obuwuzi -8 kitegeeza nti obuwanvu bw’obuwuzi buli yinsi 8/16 oba 1/2.
Okuzuula emiguwa gya SAE:
1. Pima dayamita ey’ebweru ey’obuwuzi obusajja oba dayamita ey’omunda ey’obuwuzi obukazi.
2. Bala omuwendo gw’obuwuzi buli yinsi (TPI).
Omutindo gwa SAE J518, wamu n’omutindo gw’ensi yonna nga DIN 20066, ISO/DIS 6162, ne JIS B 8363, guwa obulagirizi obujjuvu ku SAE Thread Sizes era nga gulimu ebikwata ku bipimo bya flange clamp ne sayizi za bulooti ezisaanidde.
Mu bufunze, obuwuzi bwa SAE bukulu nnyo mu nkola z’amazzi, okukakasa nti ssigiri yeesigika era ekola bulungi.Sayizi n’ebika byabwe ebituufu, nga Straight Thread O-Ring Boss, bizifuula ekifo abakugu mu mulimu guno gye bagenda.Okutegeera obuwuzi buno kyetaagisa nnyo eri omuntu yenna akola ku bikozesebwa mu mazzi ne adapta.
Ekitabo ekikwata ku SAE Thread Sizes ne Specifications
Okulambika ku SAE Thread Charts n'ebipimo
Bwe twogera ku chati z’obuwuzi bwa SAE, tuba twogera ku nkola egabanya obunene n’ebipimo by’obuwuzi obukozesebwa mu kuyunga payipu z’amazzi n’ebikozesebwa.Ekika ky’obuwuzi ekya SAE kintu kikulu nnyo mu kulaba ng’okuyungibwa okunywevu era okutaliimu kukulukuta mu nkola z’amazzi.Okwawukanako n’obuwuzi bwa NPT oba obuwuzi bwa National Pipe Tapered, obulina dizayini ya tapered, obuwuzi bwa SAE butera okuba obugolokofu era nga bwetaaga O-ring okuteekawo ekiziyiza ekiziyiza amazzi.
SAE Ebikwata ku Muyungiro Omusajja n'Omukazi
Ku mmwe abakola n’ebitundu bya SAE Male Connector ne SAE Female Connector, kikulu nnyo okutegeera ebikwata ku nsonga zaabwe.SAE Male Connector etera okuba n’obuwuzi obw’ebweru, ate SAE Female Connector ejja n’obuwuzi obw’omunda, obukoleddwa okuyunga obulungi buli omu.Bw’oba oyunga fittings za SAE, kikulu okukwataganya obulungi ebitundu ebisajja n’ebikazi okuziyiza okukulukuta n’okukakasa nti bikola bulungi.
l SAE Male Connector : Obuwuzi obw’ebweru, obukozesebwa n’enkola za O-Ring Boss ne flange clamp .
l SAE Female Connector : Thread ey’omunda, ekwatagana n’ebiyungo ebisajja era nga ekoleddwa okukola fit ennungi.
Okwekenenya mu bujjuvu ebipimo by’obuwuzi bwa SAE 45° Flare
SAE 45° Flare Thread kika kya fitting ekigere ekikozesebwa mu mirimu egy’enjawulo egy’amazzi.Ebipimo byayo bituukiridde okukakasa nti waliwo omukutu ogukwatagana era ogwesigika.Enkoona ya diguli 45 eya flare angle nkulu nnyo kuba esobozesa okusiba ekyuma okutuuka ku kyuma, ng’ennyindo ya flare y’ekisajja ekikwatagana n’enyigiriza ku ttanka eyakaayakana ey’ekizigo ekikazi.Dizayini eno emalawo obwetaavu bw’okukozesa enkola endala ez’okusiba nga PTFE (Polytetrafluoroethylene) tape oba ebirungo ebisiba.
l Sayizi za Bolt : Etuukiridde okukozesebwa ne SAE J518 , DIN 20066 , ISO/DIS 6162 , ne JIS B 8363.
l O Ring : Kyetaagisa nnyo okukola seal nga eriko Straight Thread O-Ring Boss fittings.
SAE 45° Flare – SAE J512 Ebipimo by’obuwuzi
OMUSAJJA THREAD OD & PITCH | SIZE YA DASH | OMUSAJJA OMUWALA OD | ID YA THREAD EY'OMUKYALA | SIZE YA TUBE |
yinsi – TPI |
| mm | yinsi | mm | yinsi | yinsi |
5/16 – 24 nga bwe kiri | -05 | 7.9 | 0.31 | 6.8 | 0.27 | 1/8 |
3/8 – 24 nga bwe kiri | -06 | 9.5 | 0.38 | 8.4 | 0.33 | 3/16 |
7/16 – 20 nga bwe kiri | -07 | 11.1 | 0.44 | 9.9 | 0.39 | 1/4 |
1/2 – 20 nga bwe kiri | -08 | 12.7 | 0.50 | 11.4 | 0.44 | 5/16 |
5/8 – 18 nga bwe kiri | -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 nga bwe kiri | -14 | 22.2 | 0.88 | 20.6 | 0.81 | 5/8 |
1.1/16 – 14. Ebiwandiiko | -17 | 27.0 | 1.06 | 24.9 | 0.98 | 3/4 |
SAE 45o INVERTED FLARE – SAE J512 Ebipimo by’obuwuzi
OMUSAJJA THREAD OD & PITCH | SIZE YA DASH | OMUSAJJA OMUWALA OD | ID YA THREAD EY'OMUKYALA | SIZE YA TUBE |
yinsi – TPI |
| mm | yinsi | mm | yinsi | yinsi |
7/16 – 24 nga bwe kiri | -07 | 11.1 | 0.44 | 9.9 | 0.39 | 1/4 |
1/2 – 20 nga bwe kiri | -08 | 12.7 | 0.50 | 11.4 | 0.45 | 5/16 |
5/8 – 18 nga bwe kiri | -10 | 15.9 | 0.63 | 14.2 | 0.56 | 3/8 |
11/16 – 18 nga bwe kiri | -11 | 17.5 | 0.69 | 16.0 | 0.63 | 7/16 |
SAE PILOT O RING SEALS Pilot Omusajja Ebiwuzi Ebiwuguka Ebipimo
OMUSAJJA THREAD OD & PITCH | SIZE YA DASH | OMUSAJJA OMUWALA OD | ID YA THREAD EY'OMUKYALA | SIZE YA TUBE |
yinsi – TPI |
| mm | yinsi | mm | yinsi | yinsi |
5/8 – 18 nga bwe kiri | -10 | 15.9 | 0.63 | 14.2 | 0.56 | -6 |
3/4 – 18 nga bwe kiri | -12 | 19.0 | 0.75 | 17.8 | 0.70 | -8 |
7/8 – 18 nga bwe kiri | -14 | 22.2 | 0.88 | 20.6 | 0.81 | -10 |
Pilot Omukazi Swivel Threads Ebipimo
OMUSAJJA THREAD OD & PITCH | SIZE YA DASH | OMUSAJJA OMUWALA OD | ID YA THREAD EY'OMUKYALA | SIZE YA TUBE |
yinsi – TPI |
| mm | yinsi | mm | yinsi | yinsi |
5/8 – 18 nga bwe kiri | -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 |
Okunoonyereza ku NPT Threads
NPT Threads kye ki?– Okukubaganya ebirowoozo
Obuwuzi bwa NPT oba National Pipe Tapered threads, kika kya wuzi ya sikulaapu etera okukozesebwa okusiba ebiyungo bya payipu.Dizayini eno ekakasa okuyungibwa okutaliimu kukulukuta olw’enkula yaayo eya tapered, enywera nga fitting eyingizibwa mu payipu.Taper ekola seal nga esika obuwuzi wamu, emirundi mingi n’eyongerwako nga osiiga PTFE tape oba sealant compound okuziba ebituli byonna.
Ekipande ky’ebipimo by’obuwuzi bwa NPT mu bujjuvu
Nga okolagana n’obuwuzi bwa NPT, ebipimo ebituufu bikulu nnyo.Wano waliwo ekipande ky’ebipimo by’obuwuzi bwa NPT obwangu:
NPT THREAD SIZE & EKITUNDU EKYOKUYIGA | SIZE YA DASH | OMUSAJJA THREAD MINOR OD | ID YA THREAD EY'OMUKYALA |
yinsi – TPI |
| mm | yinsi | mm | yinsi |
1/8 – 27 nga bwe kiri | -02 | 9.9 | 0.39 | 8.4 | 0.33 |
1/4 – 18 | -04 | 13.2 | 0.52 | 11.2 | 0.44 |
3/8 – 18 nga bwe kiri | -06 | 16.6 | 0.65 | 14.7 | 0.58 |
1/2 – 14 nga bwe kiri | -08 | 20.6 | 0.81 | 17.8 | 0.70 |
3/4 – 14 nga bwe kiri | -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 |
NPT Threads mu nkola y’amakolero
Obuwuzi bwa NPT bukulu nnyo mu bifo eby’enjawulo eby’amakolero.Zitera okusangibwa mu nkola ezikwata amazzi g’amazzi nga kyetaagisa okusiba okunywevu, okuziyiza puleesa.Adapta za NPT zikozesebwa okuyunga hoosi ne payipu eza sayizi ez’enjawulo oba okukyusa okuva ku bika by’obuwuzi ebirala, nga ekika ky’obuwuzi bwa SAE, okudda ku NPT.Nga oyunga fittings za SAE, eziyinza okukozesa enkola ya Straight Thread O-Ring Boss, adapters zikakasa okukwatagana n’ebitundu ebiriko NPT-threaded.
Okuzuula obunene n’omutindo gw’obuwuzi bwa NPT
Okuzuula obuwuzi bwa NPT, ojja kwetaaga okumanya byombi obuwanvu obw’ebweru n’omuwendo gw’obuwuzi buli yinsi.Wano waliwo ekitabo eky'amangu:
1. Pima dayamita ey’ebweru ey’obuwuzi obusajja oba dayamita ey’omunda ey’obuwuzi obukazi.
2. Bala omuwendo gw’entikko z’obuwuzi mu bbanga lya yinsi emu okuzuula TPI.
3. Geraageranya ebipimo bino n’ekipande kya NPT ekya bulijjo okuzuula obunene bwa NPT obukwatagana.
Kikulu okumanya nti obuwuzi bwa NPT bwetaaga okukwatagana obulungi okusobola okutuuka ku kukwatagana okunywevu.Kino kitegeeza nti obuwuzi obusajja n’obukazi bulina okusikulibwa wamu ekimala okuziyiza okukulukuta, naye nga tebunywevu nnyo okusobola okwonoona.
Okwekenenya okugeraageranya ku SAE vs. NPT Threads
Enkola y’obuwuzi: Egolokofu vs. Tapered
Nga twekenneenya SAE Thread Type ne NPT Thread, enjawulo enkulu yeeyolekera mu dizayini zaabwe.Obuwuzi bwa SAE naddala obwa Straight Thread O-Ring Boss, bumanyiddwa olw’engeri gye buwuzi obugolokofu.Dizayini eno esobozesa dayamita etakyukakyuka mu buwanvu bwonna obw’obuwuzi.Okwawukana ku ekyo, National Pipe Tapered Threads (NPT) ziraga ekifaananyi ekitono, nga zifunda nga bwe zigenda mu maaso okuyita ku kisenge ky’obuwuzi.
l SAE : Obuwuzi obugolokofu, obuwanvu bwa kimu.
l NPT : Obuwuzi obuwanvu, obuwanvu bukendeera okumpi n’obuwuzi.
Obukodyo bw’okusiba: O-Ring vs. Taper ne Sealants
Okusiba obulungi kikulu nnyo mu kuziyiza okukulukuta.SAE Male Connector ne SAE Female Connector zitera okukozesa O-Ring okukola seal.O-Ring eno etuula mu kisenge (groove) n’enyigiriza ng’enywezeddwa, n’ekola ekiziyiza okukulukuta.Mu kiseera kino, enkola ya tapered design ya NPT threads yeetaaga enkola ey’enjawulo.Taper esobozesa obuwuzi okukwatagana obulungi nga bwe busikula, ne kikola ekiyungo ekiziyiza amazzi.Okusobola okutumbula enkola eno, PTFE (Polytetrafluoroethylene) tape oba ekirungo ekiziyiza ekiziyiza kitera okusiigibwa ku wuzi za NPT.
l SAE : Ekozesa O-Ring okusiba.
l NPT : Yeesigamye ku dizayini ya tapered n’ebiziyiza ebirala okusobola okuyungibwa nga tekukulukuta.
Ebirungi ebiri mu mbeera: Ddi lw’olina okukozesa SAE oba NPT
Okulonda wakati wa SAE ne NPT fittings kitera okusinziira ku nkola entongole n’omutindo gw’amakolero.SAE J514 tube fittings zikozesebwa nnyo mu nkola z’amazzi olw’enkola yazo ennywevu ey’okusiba n’obusobozi bw’okugumira puleesa ey’amaanyi.Zikoleddwa okutuukana n’omutindo nga SAE J518, DIN 20066, ISO/DIS 6162, ne JIS B 8363. Ebintu bino birungi nnyo okukola omukago ogwesigika ng’oddukanya amazzi g’amazzi.
Ate ebikozesebwa bya NPT bitera okusangibwa mu nkola za ppipa n’empewo ez’awamu.Omutindo gwa Amerika ogw’omutindo gwa payipu (ANSI/ASME B1.20.1) gwe mutindo ogwa bulijjo ku wuzi zino eziriko obuwuzi obuwanvu.Adapta za NPT zisaanira okukozesebwa nga thread engolokofu tekyetaagisa oba nga okukozesa O-Ring tekisoboka.
l SAE : Esinga kwagala nkola za mazzi eza puleesa enkulu.
l NPT : Etera okubeera mu kussa amazzi n’okukozesa puleesa eya wansi.
Enkola Ennungi mu Kuteeka SAE ne NPT Threaded Fittings
Bw’oba oyunga fittings za SAE, precision kye kisumuluzo.Tandika ng'olonda ekiyungo ekituufu ekya SAE Male Connector oba SAE Female Connector.Kakasa nti ekwatagana n’omutindo nga SAE J518, DIN 20066, oba ISO/DIS 6162. Okusobola okukwatagana obulungi, kozesa O-ring ne flange clamp.Laganya sayizi za bulooti n’ebiragiro okwewala okuggyamu obuwuzi.
Okuyungibwa kw’obuwuzi bwa NPT, okufugibwa ANSI/ASME B1.20.1, kwetaaga enkola ey’enjawulo.Siiga PTFE tape oba ekirungo ekituufu eky’okusiba ku MPT okukakasa nti ssiba teyingiramu mazzi olw’engeri gye yakolebwamu nga ya tapered.Weewale okunyweza ennyo;kiyinza okuleeta enjatika oba okukyusakyusa obuwuzi.
Okuddaabiriza n’okugonjoola ebizibu Ensonga ezitera okubaawo
Okukebera buli kiseera kikulu nnyo ku nkola z’amazzi.Noonya obubonero bw’okwambala ku SAE J514 tube fittings ne NPT adapters.Singa wabaawo okukulukuta, kebera O-Ring Boss ogizzeemu singa eyonoonese.Ku nsonga za NPT thread, kebera oba PTFE tape yeetaaga okuddamu okugikozesa.Bulijjo beera n’ekintu eky’okuddaabiriza mu ngalo nga kiriko sipeeya O-rings, sealant compound, ne PTFE tape.
Okukakasa Obuwangaazi n’okukola obulungi mu nkola z’amazzi
Okukuuma obulungi enkola, goberera emitendera gino:
1. Kozesa amazzi g’amazzi amatuufu.
2. Teekawo enteekateeka y’okukebera buli kiseera ebiyungo byonna.
3. Ebitundu ebyambala bikyuse mu bwangu.
4. Kuuma payipu eziriko obuwuzi n’ebintu ebikozesebwa mu payipu nga biyonjo okuva ku bifunfugu.
5. Londoola enkyukakyuka mu nkola y’enkola.
Bw’ogoberera ebiragiro bino, osobola okukakasa nti ebiyungo ebitaliimu kukulukuta n’okuwangaaza obulamu bw’enkola yo ey’amazzi.Jjukira, okulonda okutuufu okwa SAE Thread Type oba NPT Thread kuyinza okuleeta enjawulo yonna mu kutondawo envumbo ennungi, eziwangaala.
Mu bufunzi
Tunoonyezza ku nuances za SAE ne NPT threads.Okuddamu okukubaganya ebirowoozo, obuwuzi bwa SAE bukoleddwa ku nkola z’amazzi, nga bulimu obuwuzi obugolokofu nga buliko empeta ya O okusiba.SAE Male Connector ne SAE Female Connector zikola emirimu emikulu mu kulaba ng’omukutu ogutaliimu kukulukuta.Ku luuyi olulala, obuwuzi bwa NPT, oba obuwuzi bwa National Pipe Tapered, bulina dizayini ya tapered ekola seal okuyita mu kunyweza okukwatagana, emirundi mingi okunywezebwa ne PTFE tape oba sealant compound.
Okutegeera enjawulo eriwo kikulu nnyo.SAE Thread Types, nga Straight Thread O-Ring Boss esangibwa mu SAE J514 tube fittings, zeesigamye ku O-ring okukola seal ennywevu.Okwawukana ku ekyo, obuwuzi bwa NPT, obukwatagana ne ANSI/ASME B1.20.1, bukola akabonero olw’okutaataaganyizibwa wakati w’obuwuzi.
Okulonda ekika kya thread ekituufu tekiyinza kuyitirizibwa.Obutakwatagana buyinza okuvaako okukulukuta, enkola okugwa mu matigga, n’okweyongera kw’obudde bw’okuyimirira.Okugeza, bw’oba oyunga fittings za SAE ku nkola ya mazzi, kakasa nti zikwatagana n’omutindo nga SAE J518, DIN 20066, ISO/DIS 6162, oba JIS B 8363. Omutindo guno gwogera ku bipimo, omuli sayizi za bulooti n’ebyetaago bya flange clamp, okukakasa nti a okukwatagana okunywevu era okutuufu.
Mu ttwale ly’ebikozesebwa mu mazzi, SAE Thread Type etera okukwatagana n’ebiyungo bya O-Ring Boss, ate NPT thread ya bulijjo mu nkola za ppipa okutwalira awamu.Bw’oba okozesa adapters za NPT mu nkola eyakolebwa ku mutindo gwa SAE, beera n’ebirowoozo ku nkola ez’enjawulo ez’okusiba.O-ring egaba okuyungibwa okutakyukakyuka okuziyiza amazzi mu nkola za SAE, so nga dizayini ya tapered mu nkola za NPT yeetaaga okukwatagana n’obwegendereza obuwuzi okusobola okutuuka ku kuyungibwa okutaliimu kukulukuta.
Mu kumaliriza, obulungi bw’ebiyungo byo —ka bibeere nga bizingiramu payipu eziriko obuwuzi, ebikozesebwa mu payipu, oba ebikozesebwa mu mazzi —byesigamiziddwa ku kuzuula obulungi n’okusiiga SAE Thread Type oba NPT Thread.Bulijjo jjukira emitendera gy’amakolero, ng’egyo egyogeddwako, okulungamya okulonda kwo.Jjukira nti ekika ky’obuwuzi ekituufu tekikoma ku kukakasa nti ekwatagana bulungi naye era ekuuma obulungi n’obukuumi bw’enkola yo yonna.
