Izinga le-BS 1873 lisho i-British Standard ethile yamavalvu embulunga anamabhonethi abhowudi. Igama elithi "BS 1873" libonisa ukuthi i-valve ivumelana nezindinganiso ezibekwe yi-British Standards Institution (BSI) yalolu hlobo lwevalvu.Ivalvu yeglobhu enebhonethi eboshiwe iwuhlobo lwevalvu evame ukusetshenziselwa ukulawula, ukuhlukanisa, noma ukunyakazisa ukugeleza koketshezi epayipini. Idizayini yebhonethi eboshiwe ivumela ukufinyelela kalula kwangaphakathi kwe-valve ukuze kugcinwe futhi kulungiswe izinjongo.Lawa ma-valve asetshenziswa kakhulu ezimbonini ezihlukahlukene, kuhlanganise nowoyela negesi, i-petrochemical, ukukhiqiza amandla, kanye nezindawo zokuhlanza amanzi. Ivalvu yeglobhu yebhonethi ebholidi ifanele ukusetshenziswa lapho ukuvala okuqinile kuyadingeka nalapho ukugcinwa njalo noma ukuhlolwa kwamavalvu angaphakathi kuyadingeka.Amavalvu eglobhu e-BS 1873 anamabhonethi abholidi ngokuvamile anamathela kumklamo othize kanye nenqubo yokusebenza echazwe ezingeni ukuze kuqinisekiswe ukwethembeka nokusebenza kwawo. Lezi zindlela zingabandakanya ukucaciswa kwezinto zokwakha, izilinganiso zezinga lokushisa elicindezelayo, ukuxhumana kokuphela, nezinye izici ezifanele.Lapho ucacisa noma ukhetha ivalvu yeglobhu ye-BS 1873 enebhonethi eboshiwe, kubalulekile ukucabangela izici ezifana nokufakwa okuhlosiwe, izimo zokusebenza, izakhiwo eziwuketshezi, izimfuneko zokucindezela nezinga lokushisa, nanoma yiziphi izimiso noma izimiso zemboni ezisebenzayo.Uma unemibuzo ethile mayelana ne-BS18 ejwayelekile ye-BS18..
1. Ukuvula nokuvala okungena-friction. Lo msebenzi uxazulula ngokuphelele inkinga yokuthi ukuvalwa kwama-valve endabuko kuthinteka ukungqubuzana phakathi kwezindawo zokuvala.
2, uhlobo oluphezulu lwesakhiwo. I-valve efakwe epayipini ingabhekwa ngokuqondile futhi ilungiswe ku-inthanethi, okunganciphisa ngempumelelo indawo yokupaka idivayisi futhi kunciphise izindleko.
3, umklamo wesihlalo esisodwa. Inkinga yokuthi i-medium emgodini we-valve ithintwa ukwanda kwengcindezi engavamile iyaqedwa.
4, i-torque design ephansi. Isiqu se-valve esinomklamo okhethekile wesakhiwo singavulwa kalula futhi sivalwe ngesibambo esincane sesandla.
5, uhlaka lokuvala uphawu. I-valve ivalwa ngamandla emishini anikezwe isiqu se-valve, futhi inkaba yebhola icindezelwa esihlalweni, ukuze ukuvalwa kwe-valve kungathinteki ngokushintsha umehluko wokucindezela wepayipi, futhi ukusebenza kokuvala kuqinisekiswe ngokuthembekile ngaphansi kwezimo ezihlukahlukene zokusebenza.
6. Isakhiwo sokuzihlanza sendawo yokubeka uphawu. Lapho ibhola litshekela kude nesihlalo, uketshezi olusepayipini ludlula u-360° ngokulinganayo endaweni evalekayo yebhola, okungagcini nje ngokuqeda ukuguguleka kwendawo koketshezi olunesivinini esikhulu esihlalweni, kodwa futhi kugeze ukunqwabelana endaweni evalekayo ukuze kufezwe inhloso yokuzihlanza.
I-7, ububanzi be-valve DN50 ngaphansi komzimba we-valve, ikhava ye-valve ihlanganisa izingxenye, i-DN65 ngaphezu komzimba we-valve, isembozo se-valve siyizingxenye zensimbi.
I-8, umzimba we-valve kanye nesembozo se-valve kunezinhlobo ezahlukene zokuxhuma, uxhumano lwephini lokubopha, uxhumano lwe-flange gasket kanye nokuxhumeka kwentambo yokuzivala.
9. Indawo yokuvala isihlalo se-valve kanye ne-valve flap yenziwe nge-plasma spray welding noma i-cobalt chromium tungsten carbide engaphezulu, enobulukhuni obuphezulu, ukumelana nokugqoka, ukumelana nokuhuzuka nokuphila isikhathi eside.
I-10, i-valve stem material iyinsimbi ye-nitriding, ubulukhuni be-valve ye-nitriding stem ebusweni, ukumelana nokugqoka, ukumelana nokuhuzuka, ukumelana nokugqwala, impilo ende yesevisi.
Ngesikhathi sokuvula nokuvala i-valve yeglobu yensimbi eyenziwe ngomgunyathi, ngenxa yokuthi ukungqubuzana phakathi kwe-disc kanye nendawo yokuvala yomzimba we-valve kuncane kunaleyo ye-valve yesango, ayigugi.
I-stroke yokuvula noma yokuvala ye-valve stem imfushane kakhulu, futhi inomsebenzi wokunqamula othembeke kakhulu, futhi ngenxa yokuthi ukuguqulwa kwembobo yesihlalo se-valve kuhambisana nokushaywa kwediski ye-valve, kulungele kakhulu ukulungiswa kwesilinganiso sokugeleza. Ngakho-ke, lolu hlobo lwe-valve lufaneleka kakhulu ukunqunywa noma ukulawulwa nokudonsa.
Umkhiqizo | I-BS 1873 Globe Valve Bolted Bolted |
Ububanzi bokuzisholo | I-NPS 2”, 3”, 4”, 6”, 8” , 10” , 12” , 14”, 16”, 18”, 20” 24”, 28”, 32”, 36”, 40”, 48” |
Ububanzi bokuzisholo | Ikilasi 150, 300, 600, 900, 1500, 2500. |
Qeda Ukuxhumana | Flanged (RF, RTJ, FF), Welded. |
Ukusebenza | Isondo Lokuphatha, I-Actuator Yomoya, I-Actuator Kagesi, Isiqu Esingenalutho |
Izinto zokwakha | A216 WCB, WC6, WC9, A352 LCB, A351 CF8, CF8M, CF3, CF3M, A995 4A, A995 5A, A995 6A, Ingxubevange 20, Monel, Inconel, Hastelloy, Aluminium Bronze kanye nezinye i-alloy ekhethekile. |
A105, LF2, F5, F11, F22, A182 F304 (L), F316 (L), F347, F321, F51, Alloy 20, Monel, Inconel, Hastelloy | |
Isakhiwo | Ngaphandle kwesikulufu nejoka (OS&Y), Ibhonethi ye-Pressure Seal |
Umklami kanye nomkhiqizi | I-API 600, API 603, ASME B16.34 |
Ubuso Nobuso | I-ASME B16.10 |
Qeda Ukuxhumana | I-ASME B16.5 (RF & RTJ) |
I-ASME B16.25 (BW) | |
Ukuhlolwa nokuhlolwa | I-API 598 |
Okunye | I-NACE MR-0175, NACE MR-0103, ISO 15848, API624 |
Iyatholakala futhi nge | I-PT, UT, RT,MT. |
Njengomkhiqizi ochwepheshile wamavalvu ensimbi enziwe ngomgunyathi futhi othumela ngaphandle, sithembisa ukuhlinzeka amakhasimende ngesevisi yekhwalithi ephezulu yangemuva kokuthengisa, okuhlanganisa nalokhu okulandelayo:
1.Nikeza isiqondiso sokusetshenziswa komkhiqizo neziphakamiso zokuwulungisa.
2.Ngokwehluleka okubangelwa izinkinga zekhwalithi yomkhiqizo, sithembisa ukuhlinzeka ngosekelo lobuchwepheshe kanye nokuxazulula izinkinga ngesikhathi esifushane kakhulu.
3.Ngaphandle komonakalo odalwe ukusetshenziswa okuvamile, sinikeza ukukhanda kwamahhala kanye nezinsizakalo zokushintshwa.
4.Sithembisa ukuphendula ngokushesha ezidingweni zesevisi yamakhasimende ngesikhathi sewaranti yomkhiqizo.
5. Sihlinzeka ngosekelo lwesikhathi eside lobuchwepheshe, ukubonisana nge-inthanethi kanye nezinsizakalo zokuqeqesha. Umgomo wethu uwukunikeza amakhasimende umuzwa wesevisi ongcono kakhulu nokwenza ulwazi lwamakhasimende lube mnandi futhi lube lula.