Li-Fittings tsa NPT ke eng?

Di-fitting tsa NPT, kapa di-fitting tsa National Pipe Taper, ke mofuta wa di-fitting tse nang le khoele tse sebediswang ditsamaisong tsa diphaephe le diphaephe. ​​Di-fitting tsena di na le dikhoele tse tenyetsehang tse etsang hore ho be le tiiso ha di tiisitswe. Di-fitting tsa NPT di sebediswa hangata ditshebedisong moo ho dutlang metsi ho lokelang ho thibelwa, jwalo ka ditsamaisong tsa metsi, moya, kapa kgase. Di fumaneha ka thepa e fapaneng jwalo ka koporo, tshepe e sa ruseng, le polasetiki, mme di tla ka boholo bo fapaneng ho amohela bophara bo fapaneng ba diphaephe le di-pitch tsa khoele. Di-fitting tsa NPT di sebediswa haholo Amerika Leboya le dibakeng tse ding, empa ho bohlokwa ho hlokomela hore ha di tsamaisane le dikhoele tse tshwanang le tse fumanwang di-fitting tsa British Standard Pipe (BSP).

Ntle le disebediswa tsa National Pipe Taper (NPT) tse sebediswang haholo Amerika Leboya, ho na le disebediswa tse ding tse mmalwa tsa naha tse tlwaelehileng tsa diphaephe tse sebediswang dibakeng tse fapaneng lefatsheng ka bophara. Tse ding tsa tsona di kenyeletsa:

BSPP (British Standard Pipe Parallel): E boetse e sebelisoa UK le linaheng tse ling tse khomarelang maemo a Brithani. Ho fapana le BSPT, li-fitting tsa BSPP li na le likhoele tse bapileng. Ka linako tse ling li bitsoa likhoele tsa G.

BSPT (British Standard Pipe Taper): E sebediswa haholo United Kingdom le dinaheng tse ding ho latela maemo a Brithani. Di-fitting tsa BSPT di na le sekhutlo se fokolang sa di-degree tse 55 mme hangata di bitswa di-thread tsa R kapa Rp.

JIS (Litekanyetso tsa Indasteri tsa Japane): Li sebelisoa Japane le linaheng tse ling tsa Asia, li-fitting tsa JIS li na le angle e fokolang ea likhato tse 30 'me li tšoana ka moralo le li-fitting tsa BSPT.

ISO 7/1 (Mokhatlo oa Machaba oa Maemo a Tloaelehileng): E sebelisoa haholo Europe le libakeng tse ling ho latela maemo a ISO. Li-fitting tsa ISO 7/1 li na le angle e tenya ea likhato tse 55 'me li tšoana le li-fitting tsa BSPT empa li na le liphapang tse itseng litekanyong tsa khoele.

Tsena ke mehlala e seng mekae feela ea li-fitting tsa naha tsa liphaephe tse tloaelehileng, e 'ngoe le e 'ngoe e na le litlhaloso tsa eona le mekhoa ea ts'ebeliso. Ho bohlokoa ho sebelisa li-fitting tse loketseng bakeng sa ts'ebeliso ea hau e ikhethileng ho netefatsa hore lia lumellana ebile lia sebetsa.