Maonero: 837 Munyori: Saiti Edhita Nguva Yekuburitsa: 2023-12-18 Mabviro: Site
Uri kunetseka nekusanzwisisa NPSM, NPTF, NPT, uye BSPT tambo? Ichi chinyorwa chinokutungamira kuburikidza nekunzwisisa kwakadzama kweshinda idzi, uye kukudzidzisa maitiro ekuaisa pamwe chete nezvakakosha kufunga.
NPT inomirira kuti National Pipe Tapered . Imhando yeshinda yakashongedzwa inoshandiswa kubatanidza mapaipi nemafittings. Hezvino izvo zvaunoda kuziva:
l Tapered Threads : NPT shinda dzinoputika pachiyero che 1/16 inch per inch, zvinoreva kuti dzinoita dzakatetepa kusvika kumagumo.
l Thread Standards : Vanotevera ANSI/ASME B1.20.1 chiyero.
l Thread Angle : Shinda dzine 60 ° flank angle.
l Kuisa Chisimbiso Kubudirira : Ivo vanogadzira chisimbiso chemuchina nekupindirana kwakakodzera pakati petambo crests nemidzi ..
NPT tambo dziri kwese kwese mukumanikidza masisitimu . Iwo anoshandiswa kuve nechokwadi chekuvuza-isina chisimbiso mu:
l Fluid uye Gasi Transfer : Mapombi anotakura mvura, oiri, kana gasi.
l Pressure Calibration Systems : Zvishandiso zvinoyera kudzvanywa.
Maindasitiri anoshandisa NPT tambo anosanganisira:
l Kugadzira
l Automotive
l Aerospace
Kana uchiisa NPT tambo, tevera aya akanakisa maitiro:
1. Shandisa PTFE Tepi : Putira PTFE tepi (Teflon) uchitenderedza shinda yechirume kuti unatse chisimbiso.
2. Usanyanya Kuomesa : Kunyanya-kuomesa kunogona kukonzera galling , uko tambo dzinokuvara.
3. Tarisa kune Mavuza : Gara uchiyedza kubatana kwekuvuza.
Zvishandiso zvakajairika zvinosanganisira:
l Kubatanidza Mapaipi : Senge mumapombi epamba pako.
l Fittings : Senge magokora kana ma tee anobatsira kushandura mafambiro ekuyerera.
l Leak-Yemahara Yekubatanidza : Izvo zvakagadzirirwa kugadzira chisimbiso chakasimba.
l Inogamuchirwa Zvakawanda : NPT ndiyo chiyero mumaindasitiri mazhinji.
l Njodzi Yekuwedzeredza-Kusimbisa : Zvinogoneka kukuvadza tambo.
l May Inoda Sealant : Dzimwe nguva, imwe sealant inodiwa kuti ive nechokwadi chekuvuza-isina chisimbiso.
l NPTF , kana National Pipe Taper Fuel , inozivikanwawo seDryseal American National Standard Taper Pipe Thread , yakagadzirirwa kupa chisimbiso chakasimba pasina kudiwa kwekuwedzera sealant.
l Shinda dzeNPTF dzine dhizaini yakati siyanei inobvumira kubatanidza kwemuchina pasina kushandisa PTFE tepi kana zvimwe zvisimbiso, zvakasiyana netambo dzeNPT dzinowanzoda ivo.
Rangarira, NPT ndeyekugadzira tapered pombi tambo yekubatanidza yakavimbika uye inoshandiswa zvakanyanya. Kunyangwe uchishanda pamotokari kana kugadzirisa mvura inodonha kumba, kuziva nezveNPT tambo kunokubatsira kuita zvirinani.
NPTF threads, inozivikanwawo seDryseal American National Standard Taper Pipe Thread , tevera ANSI B1.20.3 mitemo. Aya tambo akafanana neNPT asi akagadzirirwa chisimbiso chiri nani. Tambo dzeNPTF dzine 60° flank angle uye dzinogadzira chisimbiso chemuchina kuburikidza nekupindirana kwakakodzera pakati petambo crests nemidzi. Izvi zvinoreva kuti tambo dzinopwanya pamwechete kuita chisimbiso chakasimba pasina kuda mamwe ma sealants.
Nepo NPT neNPTF tambo dzinotaridzika zvakafanana, magadzirirwo adzo akasiyana . Tambo dzeNPT dzakagadzirwa pasi pe ANSI/ASME B1.20.1 , uye dzingada tepi yePTFE kana zvimwe zvisimbiso kuti ive nechokwadi chekubatanidza kusina kubuda . Kune rumwe rutivi, tambo dzeNPTF, dzinotevera ANSI B1.20.3 , dzinoitwa kuti dzive dzakasimba uye dzinoita chisimbiso pasina zvimwe zvinhu. Ivo vanozadzisa izvi nedhizaini inobvumira iyo tambo crests uye midzi squash pamwe chete, kugadzira chisimbiso chisina kuvuza..
Munyika yehuturu uye gasi , NPTF tambo isarudzo yekuenda. Iwo akagadzirwa kuti agadzire chisimbiso chisina kunyuza icho chakakosha mukumanikidza masisitimu . Aya masisitimu haakwanise kudonha, sezvo diki diki rinogona kuve nengozi. NPTF tambo dzinoshandiswa mukumanikidza calibration masisitimu uye zvikamu uko kuchengetedza kuchena uye kuvimbika kwemvura kana gasi kwakakosha.
NPTF tambo dzinowanzo kuwanikwa mumashandisirwo apo chisimbiso chisina kuvuza chakakosha, uye hapana chisimbiso chinodiwa. Nekudaro, nepo NPTF neNPT tambo dzimwe nguva dzichigona kusanganiswa, izvi hazvisi nguva dzose zvakachengeteka kana kushanda. Tambo dzeNPTF dzinogona kukwizwa kuita zveNPT, asi reverse rinogona kusanamira zvakanaka nekuti NPTF yakagadzirirwa kuswedera pedyo. Izvo zvakakosha kuti utarise kuenderana usati wazvisanganisa kuti udzivise nyaya senge galling kana kuisa chisimbiso chisina kunaka.
NPSM shinda imhando yetambo dzakatwasuka pombi . Vanotevera ANSI/ASME B1.20.1 zviyero. Idzi tambo dzakagadzirirwa kubatanidza mechanical pane kugadzira chisimbiso. Iwo ane 60 ° flank angle uye anofanirwa kushandiswa negasket kana O -ring kugadzira chinongedzo chisina kuvuza..
Mapoinzi akakosha nezve NPSM tambo: - Iwo akafanana , zvinoreva kuti dhayamita rinoenderana. - NPSM tambo hadziite senge NPT (National Pipe Tapered) shinda. - Iwo anoshandiswa kugadzira ma mechanical connections . -Kuisa chisimbiso kunobva kune gaskets, kwete tambo pachadzo.
NPSM tambo dzinowanzo kuwanikwa mune hydraulic masisitimu uko inovuza-isina chisimbiso chakakosha. Ivo vanoshanda zvakanaka mumasisitimu ekumanikidza senge pressure calibration system . Iyo Yevakadzi Pipe Swivel fittings yakajairika neNPSM tambo, ichibvumira kuisirwa nyore munzvimbo dzakasimba.
Makesi ekushandisa akakodzera anosanganisira: - Ipo chisimbiso chemuchina chakakosha kupfuura chisimbiso cheshinda. -Systems inoda kazhinji disassembly uye reassembly. - Paunenge uchishandisa gasket kana O-ring inosarudzwa pane shinda sealant.
NPSM dzimwe nguva inogona kuvhiringika neNPTF ( National Pipe Taper Fuel), inozivikanwawo seDryseal American National Standard Taper Pipe Thread . Heano maitiro avanofananidza:
l NPTF tambo dzakagadzirwa kuti dzipe chisimbiso-chisingabvisi chisimbiso pasina kudiwa kwekuwedzera zvisimbiso. Vanogadzira kupindirana kunokwana pakati pemachira eshinda nemidzi yeshinda.
l NPSM tambo dzinoda gasket kana O-mhete kuti ive nechokwadi chekubatanidza-isina kubuda.
l NPSM haichinjike neNPTF kana NPT nekuda kweshinda dzakasiyana siyana.
NPSM tambo dzinokosheswa pakuita chisimbiso chadzo kana ichishandiswa nechisimbiso chakakodzera chemuchina . Iwo anoshandiswa zvakanyanya mu: - Fluid uye gasi kutumira zvikumbiro. - Maindasitiri anoda yakavimbika mechaniki yekubatanidza.
Indasitiri zvikumbiro zvinosanganisira: - Mvura uye tsvina kurapwa. - Pneumatic systems. - Lubrication masisitimu.
Kana tichitaura nezve BSPT tambo , tiri kunyura munyika yemapombi nekubatanidza izvo zvakakosha pakufambisa kwemvura uye gasi . BSPT inomirira British Standard Pipe Taper . Imhando yeshinda yakadhindwa inoshandiswa kugadzira chisimbiso chisina kubuda . Iyi chiyero inotsanangurwa mumagwaro akaita seBS 21 uye ISO 7.
BSPT tambo dzakasiyana. Dzine 60° flank angle uye dzakatepwa, zvinoreva kuti dzinodzikira padzinodzika. Izvi zvakasiyana netambo dzeNPT , dzinotapirwawo asi dzine 60° thread angle inoshandiswa muAmerica, sezvinotsanangurwa ne ANSI/ASME B1.20.1.
Zvino, ngatienzanise BSPT neNPTF . NPTF, kana National Pipe Taper Fuel , inowanzonzi Dryseal American National Standard Taper Pipe Thread , maererano ne ANSI B1.20.3 , yakagadzirirwa chisimbiso chakasimba kupfuura NPT. Inoita izvi nekugadzira kupindirana kunokwana pakati pemashinda eshinda nemidzi yeshinda . BSPT haivimbe nekukodzera uku kwekuisa chisimbiso. Pane kudaro, inogona kuda tambo sealant sePTFE tepi (Teflon) kana gasket kudzivirira kudonha.
Tambo dzeBSPT dzinoshandiswa zvakanyanya kunze kweUnited States, kunyanya munyika dzinotevera British engineering standards. Ivo vanowanzoonekwa mumasisitimu ekumanikidza uye kudzvanywa calibration masisitimu . Kugona kwavo kugadzira chisimbiso chemuchina kunoita kuti ive yakakodzera kune dzakawanda dzepasirese application.
Kana tikatarisa BSPT padivi pedzimwe mhando dzeshinda dzakaita seNPSM (National Pipe Straight Mechanical) uye BSPP (British Standard Parallel Pipe) , tinoona kuti BSPT ndeyekugadzira chinongedzo chisina kubuda mushinda dzakatemerwa, nepo NPSM neBSPP dziri dzetambo dzakatwasuka pombi . Tambo dzeBSPT dzinogadzira chinongedzo chemuchina pasina kuda chisimbiso chemhete kana O-ring , kusiyana neBSPP iyo ingangoda izvi zvekuisa chisimbiso.
Tambo dzeBSPT dzakanakira mamiriro ezvinhu kwaunoda chisimbiso chakasimba, chisina kuvuza pasina kuoma kwedzimwe nzira dzekuisa chisimbiso. Zviri nyore kushandisa kupfuura tambo dzeNPTF , dzinoda kudzvanywa chaiko kuti udzivise nyaya dzakaita senge galling kana kukuvadzwa kubva mukusimbisa zvakanyanya.
Kana tichitaura nezve tambo fittings seNPSM, NPTF, NPT, uye BSPT, zvese zvinoenderana nemabatiro avanoita uye nekusimbisa pombi. Aya mazinga eshinda anotibatsira kuti tive nechokwadi chekuti zvinhu zvinopindirana zvakanaka. Funga nezvayo senge LEGO zvidhinha - dzinofanirwa kuenderana zvakakwana kuti dzibatane.
l NPSM neNPS dzine tambo dzakatwasuka, zvinoreva kuti hadzina kusimba padzinopinda mukati.
l NPT , NPTF , uye BSPT dzakanatswa. Izvi zvinoreva kuti vanosimba, senge funnel, iyo inobatsira kumisa kubuda.
American National Standards Institute (ANSI) inoisa mitemo yetambo idzi muUS Semuenzaniso, ANSI/ASME B1.20.1 ndeyeNPT shinda. Vanotiudza kuti shinda dzinofanirwa kunge dzakakura zvakadii, vangani pane inchi (ndiko kuverenga kweshinda), uye chimiro chavanoda kuva nacho.
Zvishandiso zvine basa rakawanda. Midziyo yakawanda isimbi, sesimbi kana ndarira, nekuti yakasimba. Kugadzirwa kwezvikamu izvi kunotevera mitemo yakasimba kuti ive nechokwadi chekuti zvakachengeteka uye zvinogara kwenguva yakareba. Izvi ndezvekutevedzera - sekutevera resipi yekubika keke rakakwana nguva dzese.
l ANSI B1.20.3 uye AS 1722.1 ndezvimwe zvezviyero zvinotungamira magadzirirwo eshinda dzemasisitimu ekumanikidza..
l MuUK, vanoshandisa BS 21 uye ISO yeBSPT neBSPP shinda 7 .
Vagadziri vanofanirwawo kuve nechokwadi chekuti tambo dzavo dzinogona kubata kudzvanywa kwavanofanirwa kuita pasina kubuda kana kutyora. Ndipo panouya simbisiro yemhando .
Hurukuro hunosanganisira pitch (kuti shinda dziri kure zvakadii) uye kona yeshinda. Semuenzaniso, tambo dzeBSPT dzine 60 ° flank angle , inova chikamu chezvinoita kuti dzive dzakasiyana.
l Kushivirira ndiwo misiyano midiki inobvumidzwa muhukuru uye chimiro cheshinda. Vakafanana nekamuri yekuzunguza muzvidimbu zvakakodzera pamwechete.
l Simbiso yemhando inoreva kutarisa chikamu chese kuti uone kuti chinosangana nezviyero. Zvakafanana nemudzidzisi ari kugova basa rako rechikoro kuti ave nechokwadi chokuti wawana mhinduro zvakarurama.
Kune chisimbiso chisina kubuda , zvikamu zvakaita sePTFE tepi (Teflon) , gaskets , kana maO-rings anogona kushandiswa neshinda idzi. Tapered tambo seNPT neBSPT dzinogona kugara dzakanamira dzoga nekuda kwechimiro chadzo - dzinowedzera kusimba nekusimba dzakaita padzinenge dzichipinzwa mukati.
l Tambo dzeNPT dzakagadzirwa kuti dzive dzekupindira , zvinoreva kuti dzinogadzira chisimbiso chemuchina nekudzvanya pamwechete.
l Shinda dzeNPSM dzinoshanda nepombi yechikadzi inotenderera - rudzi rwenzungu iyo inokuita kuti uipire pasina kumonya pombi yese.
l NPTF tambo dzimwe nguva dzinonzi Dryseal American National Standard Taper Pipe Thread nekuti dzinoitirwa kusunga pasina kuda zvimwe zvinhu senge tepi kana kunamira.
Kana zvasvika kune tambo fittings inoshandiswa mukumanikidza masisitimu , izvo zvine basa. Ngatitarisei kuti shinda idzi dzinoshandiswa sei munyika chaiyo.
NPT tambo dzinowanzo kuwanikwa mune zvakajairika maindasitiri maapplication. Semuenzaniso, mugadziri wemasisitimu ekudzvanya anogona kushandisa maNPT mafittings nekuda kwekuenderana kwawo neakasiyana siyana emidziyo.
Tambo dzeNPTF , dzinozivikanwawo seDryseal American National Standard Taper Pipe Thread , dzakagadzirirwa imwe yakachengeteka, isingabvisi chisimbiso pasina kudiwa kwekuwedzera shinda sealant . Iwo anoshandiswa mumashandisirwo apo chisimbiso chemuchina chakakosha, senge mumidziyo yekuparadzira mafuta.
Shinda dzeNPSM , kana kuti National Pipe Straight Mechanical , dzinowanzo shandiswa nepombi yechikadzi inotenderera . Chidzidzo chenyaya chinogona kusanganisira hydraulic system uko NPSM fittings inobvumira kuungana uye kugadzirisa zviri nyore.
Tambo dzeBSPT , dzine 60 ° flank angle dzadzo , dzakajairika mumashandisirwo epasi rese. Ivo vanowanzo sarudzwa nekuda kwekuisa chisimbiso kwavo mumvura uye gasi kutamisa masisitimu.
Ngatiburitse misiyano:
l NPT vs. NPTF : Ose ane tapered pombi shinda , asi NPTF inopa kupindira kupindirana pakati peshinda crests neshinda midzi , kubvisa kudiwa kwechisimbiso.
l NPSM vs. NPT : NPSM ine tambo dzepombi dzakatwasuka uye inoda gasket kana O-ring kuti igadzire kusingabvire kubatana Taped dzeNPT dzinoita chisimbiso neshinda pachadzo.
l BSPT's Unique Position : Shinda dzeBSPT dzakafanana neNPT asi dzine shinda yakasiyana angled uye pitch , zvichiita kuti dzisachinjane neNPT fittings.
Nyanzvi dzemaindasitiri dzinokurudzira kushandisa PTFE tepi (Teflon) kana chisimbiso chemhete chakasungirirwa chine NPT mafittings kuitira kuti chisimbiso chisina kubuda . Kune NPTF, zvakakosha kuve nechokwadi chekuita kwakakodzera kutora mukana weiyo dryseal basa.
Paunenge uchishanda neBSPT zvinongedzo , yeuka kuti hazvienderane neNPT kana NPTF isina maadapter. Vanamazvikokota vanopa zano rekutarisa shinda dzemazinga se ANSI/ASME B1.20.1 yeNPT, ANSI B1.20.3 yeNPTF, kana ISO 7 neBS 21 yeBSPT kuti ive nechokwadi chekuenderana.
Galling , kana kukuvadzwa kweshinda, injodzi nemidziyo iyi. Kuti uzvidzivirire, usambowedzera-kusimbisa uye gara uchitevera kudzvanywa masisitimu .
Kana uchiisa NPSM , NPTF , NPT , kana BSPT zvekushandisa, zvakakosha kuti uteedzere nhungamiro kuti uve nechokwadi chekubatanidza-isina kuvuza . Heino gwara rekukurumidza:
l NPT uye NPTF :
l Isa tepi yePTFE kana tambo yakakodzera sealant kune shinda yechirume.
l Simbisa kusungirira neruoko, wozoshandisa chipanera chekupedzisira kutendeuka.
l Chenjera kuti usanyanya-kuomesa, sezvo izvi zvinogona kukuvadza tambo.
l BSPT :
l Zvakafanana neNPT, shandisa PTFE tepi kana tambo sealant.
l Simbisa nekungwarira kuti uwane mechanical chisimbiso.
l NPSM :
l Shinda idzi dzakagadzirwa kuti dzibatane nenyere yechikadzi inotenderera.
l Shandisa gasket kana O-ring yekuisa chisimbiso.
l Usanyanya kuwedzera, sezvo inogona kukonzera kukanganisa kune gasket.
l Muchinjikwa-kuruka : Inoitika kana shinda dzisina kuenderana. Nguva dzose tanga nemaoko kudzivirira.
l Galling : Metal-to-metal kuonana kunogona kukonzera izvi. Shandisa lubrication kuti uzvidzivirire.
l Kuwedzera-kusimbisa : Inogona kutungamirira mukukuvadzwa kweshinda. Tevedza iyo yekumanikidza calibration masisitimu nhungamiro kune yakakodzera torque.
l Leakage : Kana kuvuza kukaitika, tarisa kunze kwekutenderera uye uve nechokwadi chekubatanidzwa kweshinda.
l Kugara Kuongorora : Tarisa uone zviratidzo zvekupfeka, ngura, kana kukuvara.
l Kuchenesa : Chengeta shinda dzakachena. Tsvina inogona kukonzera kubuda.
l Kushandiswazve kweSealant : Nekufamba kwenguva, zvisimbiso zvinogona kudzikisira. Nyorerazve sezvinodiwa.
l Kuchengetera Kwakakodzera : Chengetedza zvigadziriso munzvimbo yakaoma, yakachena.
Rangarira :
l NPT neNPTF tambo . chisimbiso nekupindirana kwakakodzera pakati petambo crests nemidzi dzinogadzira .
l Shinda dzeBSPT dzinonamwa neshinda chete, ne60 ° flank angle inobatsira mukusunga chisimbiso.
l NPSM tambo dzinotsamira pane yemagetsi yekubatanidza , inowanzo wedzerwa ne gasket kana O-ring.
Kana zvasvika kune tambo fittings , yakafanana nepikicha. Chidimbu chimwe nechimwe chinokwana mune imwe nzira. NPSM (National Pipe Straight Mechanical) tambo dzakatwasuka uye dzakagadzirirwa mahara-anokodzera majoini emagetsi. NPT (National Pipe Tapered) threads dzakatapirwa uye dzinoita chisimbiso chakasimba nekukodzera zvakadzika sezvadzinoputirwa mukati. NPTF (National Pipe Taper Fuel), inozivikanwawo seDryseal American National Standard Taper Pipe Thread , yakafanana neNPT asi yakagadzirirwa chisimbiso chiri nani pasina inoda kuwedzera sealant. BSPT (British Standard Pipe Taper) shinda, kune rumwe rutivi, inoshandiswa kugadzira zvisimbiso zvakasimba mumasisitimu ekumanikidza uye ine 55 ° flank angle, yakasiyana ne60 ° angle inoshandiswa muNPT threads.
Zvino, ungazvisanganisa here? Kwete saizvozvo. Kuchinjana hausi mutambo waunoda kutamba neshinda fittings. Kushandisa NPT neNPTF dzimwe nguva kunogona kushanda, asi hakuna vimbiso yekuve yekubatanidza isina kubuda . Uye BSPT ? Iyo inyaya yakasiyana zvachose nekuda kweiyo yakasarudzika kona yeshinda uye kurira. Chikanganiso chinowanzoitika? Tichifunga kuti vose vanobatana. Gara uchitarisa zviyero, se ANSI/ASME B1.20.1 yeNPT, kudzivirira kuvuza kana kukuvara.
Saka, ungasarudza sei yakakodzera? Funga nezvebasa racho. Pakufambisa kwemvura uye gasi , chisimbiso chisina kuvuza ndicho kiyi. Kana uri kushanda nekumanikidza masisitimu , BSPT inogona kunge iri nzira yekuenda nayo. Kune maapplication anoda mechanika chisimbiso pasina chisimbiso, NPTF ishamwari yako. Uye yekubatanidza kwemuchina inogona kuparadzaniswa zviri nyore, NPSM inogona kunge iri sarudzo yakanyanya kunaka.
l Chii chisimbiso chakanaka?
PTFE tepi (Teflon) inowanzoshandiswa netambo dzeNPT kubatsira kuvhara.
l Ndinofanira kuasunga zvakadii?
Enda kune chinopindirana chinokodzera - chakasimba zvakakwana kuitira kuti tambo crests uye midzi inotsikirira pamwe chete, asi kwete yakasimba zvekuti unobvisa shinda.
l Zvakadini nemakona?
Rangarira, NPT neNPTF . zvine 60° flank angle , uye BSPT ine 55° angle .
Ndinogona kushandisa zvakare mafittings aya?
Dzimwe nguva, asi chenjerera kurumwa —apo shinda dzinosakara ndokunamatirana.
l Ko kana ikadonha?
Tarisa kukuvara kana edza chisimbiso chemhete chakasungwa kana O-mhete yeimwe dura rekudzivirira.
Rangarira, kuwana kwakakodzera kwakafanana nekusarudza chishandiso chakakodzera chebasa racho. Zvose pamusoro pemashoko. Chengetedza aya matipi mupfungwa, uye iwe unenge uri munzira yako yekuziva tambo fittings yekubatanidza -isina kuvuza..
Kana tichitaura nezve tambo fittings seNPSM NPTF , NPT , BSPT , uye , tiri kutaura pamusoro pezvikamu zvinotibatsira kubatanidza mapaipi nemapombi pamwe chete. Aya mafittings anoita kuti mvura yedu, gasi, nezvimwe zvinhu zvifambe nepapombi zvisingabvi. Hezvino zvatakadzidza:
l NPT imhando yetambo yakadhindwa inoshandiswa zvakanyanya muUSA. Inoita kuti ikwane nekuti shinda dzinoita diki kune rumwe rutivi, zvakaita sekoni.
l NPTF , inozivikanwawo seDryseal American National Standard Taper Pipe Thread , yakafanana neNPT asi yakagadzirirwa kugadzira chisimbiso chakatonyanya kusimba pasina kuda zvimwe zvinhu sePTFE tepi..
l NPSM , kana National Pipe Straight Mechanical , ine tambo dzakatwasuka pombi . Yakanakira kugadzira chinongedzo chemuchina chinogona kubviswa uye kudzoserwa pamwechete nyore.
l BSPT , ipfupi yeBritish Standard Pipe Taper , yakafanana neNPT asi ine shinda yakasiyana nenzwi kona . Zvakajairika munzvimbo dzinoshandisa zviyero zveBritish.
Rangarira, kuwana kwakaringana kunoreva kuziva tambo yako miyero uye kusarudza iyo chaiyo mhando yemaitiro ako ekumanikidza.
Nyika yeshinda fittings inoramba ichichinja. Hezvino zviri kumberi:
l Kuvhara chisimbiso kuri kuita nani. Isu tiri kutsvaga nzira dzekuita zvinongedzo dzakasimba zvakanyanya pasina kuda mamwe magaskets kana O-mhete.
l Zvishandiso zviri kuvandudzwa, zvakare. Izvi zvinoreva kuti mafittings anogona kubata zvakanyanya kumanikidza uye kugara kwenguva refu.
l Nyanzvi dzinokurudzira nguva dzose kutevera zvinokurudzirwa neindasitiri , sekushandisa ANSI/ASME B1.20.1 yeNPT kana ISO 7 yeBSPT, kuve nechokwadi chekuti zvese zvinonyatsoenderana.
