Nasara Haɗin Wutar Haɗin Ruwan Ruwa na NPT Masu Haɗa / Adafta
Gabatarwar Samfur
Nasara alama NPT haši aƙalla yana da NPT zaren namiji ko na mace connect end a cikin connector, NPT ne American National bututu tapered thread, kuma aka sani da ANSI/ASME B1.20.2M bututu zaren.
Zaren NPT yana da halaye masu zuwa:
1.Truncation na tushen da crests na zare ne lebur
2.60° zaren kusurwa
3.The kwana tsakanin taper da cibiyar axis na bututu thread ne 1°47'24"
4.Thread farar auna ta inch.
Domin tsinkayar zaren NPT na saiwoyi da ƙwanƙolin zaren suna da lebur, ya bambanta da NPTF, don haka dole ne a yi amfani da tef ɗin PTFE don tabbatar da hatimin da ba ya zubewa, sannan a ba da hatimi mai inganci don masu haɗawa ta amfani da ruwa mai ruwa.
Girman zaren NPT don masu haɗin masu nasara sun haɗa da: 1/8"-27, 1/4"-18, 3/8"-18, 1/2"-14, 3/4"-14, 1"-11.5, 1.1/ 4”-11.5, 1.1/2”-11.5, 2”-11.5.
Yadda za a gane zaren NPT ne kuma ƙayyade girman zaren?
1.Visual dubawa da zaren da shi ne taper, ko amfani da caliper auna fitar diamita na waje thread ko ƙananan diamita na ciki zare a daban-daban tsawon matsayi da samu diamita ne daban-daban da saduwa 1:16 taper, ko kai tsaye amfani da wani. 1:16 mazugi ma'aunin nauyi.
2.Yi amfani da ma'aunin caliper auna diamita na matsayi na tushe.Auna diamita na zaren tare da ID/OD caliper, diamita na zaren waje ana aunawa akan diamita na waje, kuma a riƙe caliper a ɗan kusurwa don ƙarin ingantaccen karatu, don zaren ciki ana auna shi akan diamita na ciki, kuma a riƙe shi daidai gwargwado. zaren don karin madaidaicin karatun mace.
3. Auna zaren kowane inch (TPI) ko farar.Kamar yadda aka auna diamita da yin amfani da ma'aunin fiti na alaƙa, gwada ma'aunin zaren daban-daban har sai an ƙayyade mafi dacewa, shigar da zaren da yawa gwargwadon yiwuwa, akwai ƙarin zaren da aka tsunduma, mafi daidaitaccen karatun.Riƙe ma'auni mai dacewa / mai haɗawa da ma'auni na zaren har zuwa haske, neman rata tsakanin ma'auni da zaren, wannan ya fi sauƙi don gani a kan ma'auni na waje / mai haɗawa fiye da abin da ke ciki.Ko kai tsaye auna tazarar igiyoyin zare guda biyu
saboda girman fiye da ɗaya na iya samun nau'ikan zaren iri ɗaya.A ƙasa akwai kwatanta bayanai tsakaninNPT thread vs BSPT zaren, yana kama da haka, don haka buƙatar a hankali kada ku haɗu ko kuskure.
Girman | Zaren NPT (60°) | BSPT zaren (55°) | ||||||
zaren | gindi OD | tushe | zaren | zaren | gindi OD | tushe | zaren | |
-2 | Z1/8" x27 | 10.242 | 4.102 | 27 | R1/8" x28 | 9.728 | 4 | 28 |
-4 | Z1/4" x18 | 13.616 | 5.785 | 18 | R1/4" x19 | 13.157 | 6 | 19 |
-6 | Z3/8" x18 | 17.055 | 6.096 | 18 | R3/8" x19 | 16.662 | 6.4 | 19 |
-8 | Z1/2" x14 | 21.224 | 8.128 | 14 | R1/2" x14 | 20.955 | 8.2 | 14 |
-12 | Z3/4" x14 | 26.569 | 8.618 | 14 | R3/4" x14 | 26.441 | 9.5 | 14 |
-16 | Z1" x11.5 | 33.228 | 10.16 | 11.5 | R1" x11 | 33.249 | 10.4 | 11 |
-20 | Z1.1/4" x11.5 | 41.985 | 10.668 | 11.5 | R1.1/4" x11 | 41.91 | 12.7 | 11 |
-24 | Z1.1/2" x11.5 | 48.054 | 10.668 | 11.5 | R1.1/2" x11 | 47.803 | 12.7 | 11 |
-32 | Z2" x11.5 | 60.092 | 11.065 | 11.5 | R2" x11 | 59.614 | 15.9 | 11 |
Matsakaicin masu cin nasara na yau da kullun ba su da Cr6+, kuma aikin kariyar lalata ya kai 360h babu ja, ya wuce daidaitattun al'ada.
Lambar Samfuri
NPT namiji | 1N | 1N9 | AN | 1 A'A | 1 NO9-OG | 1 NP | 1 NT | |
4N | 4NN | |||||||
1 CN, 1DN | 1 CN9, 1DN9 | 1FN | 1FN9 | 1 JN | 1 JN9 | 1 JN9-L | 1 JN9-LL | |
1 KN | 1SN | 6 NJ | 6 NJ-LN | |||||
AJJN | AJNJ | AFFN | EJNJ | |||||
2NB | 2NF | 2NJ | 2NJ9 | 2NU | 2NU9 | 2NU9-L | ||
5N | 5 NO | 5NB ku | 5NT | |||||
NPT mace | 5 BN | 5GN | 5 HN-N | 5 JN | 5JN9 | 5 JN-BH | 5 JN-BHLN | |
5ON | 5TN-SP | 7N | 7N9-PK | 7 NU-S | 9N-CAP | |||
GN-PK | HN | JN | KN | LN | ||||
HNNJ | JNJN | KJNJ | KJNN | LJJN | LJNN |