Muyezo wa BS 1873 umatanthawuza ku British Standard kwa mavavu apadziko lonse okhala ndi ma boniti opindika. Mawu akuti "BS 1873" akusonyeza kuti valavuyi ikugwirizana ndi miyezo yokhazikitsidwa ndi British Standards Institution (BSI) ya mtundu uwu wa valve. Vavu ya globe yokhala ndi boneti yotsekedwa ndi mtundu wa valve womwe umagwiritsidwa ntchito kwambiri poyang'anira, kudzipatula, kapena kugwedeza kutuluka kwa madzi mupaipi. Mapangidwe a bonnet opangidwa ndi bolts amalola kuti azitha kulowa mkati mwa valavu pofuna kukonza ndi kukonza zolinga.Ma valvewa amagwiritsidwa ntchito kwambiri m'mafakitale osiyanasiyana, kuphatikizapo mafuta ndi gasi, petrochemical, magetsi opangira magetsi, ndi malo opangira madzi. Valavu ya globe ya bolt ndi yoyenera kugwiritsira ntchito pamene kutsekedwa kolimba kumafunika ndipo kumene kukonzanso kawirikawiri kapena kuyang'anitsitsa oyendetsa ma valve ndi kofunika.Ma valve a BS 1873 a globe okhala ndi ma boniti otsekemera amatsatira ndondomeko yeniyeni ndi machitidwe omwe amatchulidwa muyeso kuti atsimikizire kudalirika kwawo ndi ntchito. Izi zingaphatikizepo mafotokozedwe a zipangizo, kutentha kwa kutentha, kugwirizanitsa mapeto, ndi zina zofunika.Mukatchula kapena kusankha valavu ya BS 1873 ya globe yokhala ndi boniti yotsekedwa, m'pofunika kuganizira zinthu monga momwe mukufunira, momwe mungagwiritsire ntchito, katundu wamadzimadzi, kupanikizika ndi kutentha, ndi zofunikira zilizonse zamakampani kapena malamulo.Ngati muli ndi mafunso okhudza muyezo wa BS183.
1. Kutsegula ndi kutseka popanda kukangana. Ntchitoyi imathetsa vutolo kuti kusindikiza kwa ma valve achikhalidwe kumakhudzidwa ndi kukangana pakati pa malo osindikizira.
2, mawonekedwe amtundu wapamwamba. Vavu yomwe imayikidwa papaipi imatha kuyang'aniridwa mwachindunji ndikukonzedwanso pa intaneti, zomwe zimatha kuchepetsa kuyimitsidwa kwa chipangizocho ndikuchepetsa mtengo.
3, kapangidwe ka mpando umodzi. Vuto lomwe sing'anga mu valavu ya valve imakhudzidwa ndi kuwonjezereka kwamphamvu kwamphamvu kumathetsedwa.
4, mapangidwe otsika a torque. Tsinde la valve yokhala ndi mapangidwe apadera amatha kutsegulidwa mosavuta ndi kutsekedwa ndi chogwirira chaching'ono chamanja.
5, kamangidwe kusindikiza mphero. Valavu imasindikizidwa ndi mphamvu yamakina yomwe imaperekedwa ndi tsinde la valve, ndipo mpirawo umakanikizidwa kumpando, kotero kuti kusindikiza kwa valve sikukhudzidwa ndi kusintha kwa kusiyana kwapaipi ya payipi, ndipo ntchito yosindikiza imatsimikiziridwa modalirika pansi pa zochitika zosiyanasiyana zogwirira ntchito.
6. Kudzitchinjiriza kamangidwe ka kusindikiza pamwamba. Mpirawo ukatsetsereka kuchoka pampando, madzi a m’paipi amadutsa 360 ° molingana ndi kusindikiza pamwamba pa mpirawo, zomwe sizimangochotsa kukokoloka kwamadzi othamanga kwambiri pampando, komanso kumatsuka kudzikundikira pamadzi osindikizira kuti akwaniritse cholinga chodziyeretsa.
7, valavu m'mimba mwake DN50 pansi pa thupi valavu, valavu chivundikirocho ndi forging zigawo, DN65 pamwamba valavu thupi, valavu chivundikiro ndi kuponyedwa zitsulo mbali.
8, thupi la valavu ndi chivundikiro cha valve zimakhala ndi njira zosiyanasiyana zolumikizirana, kulumikizana kwa pini, kulumikizana kwa flange gasket ndi kulumikiza ulusi wodzisindikiza.
9. Malo osindikizira a mpando wa valve ndi valavu amapangidwa ndi kuwotcherera kwa plasma kapena pamwamba pa cobalt chromium tungsten carbide, yomwe imakhala ndi kuuma kwakukulu, kukana kuvala, kukana abrasion ndi moyo wautali wautumiki.
10, valavu tsinde zakuthupi ndi nitriding chitsulo, nitriding valavu tsinde pamwamba kuuma, kukana kuvala, kukana abrasion, kukana dzimbiri, moyo wautali utumiki.
Panthawi yotsegulira ndi kutseka kwa valve yachitsulo yopangidwa ndi zitsulo, chifukwa kukangana pakati pa diski ndi kusindikiza pamwamba pa thupi la valve ndi kochepa kuposa kwa valve yachipata, imakhala yosagwira ntchito.
Kutsegula kapena kutseka kwa tsinde la valve kumakhala kochepa kwambiri, ndipo kumakhala ndi ntchito yodalirika kwambiri yodula, ndipo chifukwa kusintha kwa doko la mpando wa valve kumakhala kofanana ndi kugunda kwa diski ya valve, ndikoyenera kwambiri kusintha kwa kayendedwe ka kayendedwe kake. Choncho, valavu yamtunduwu ndi yoyenera kwambiri kudulidwa kapena kuwongolera ndi kugwedeza.
Zogulitsa | BS 1873 Globe Valve Bolted Bonnet |
M'mimba mwake mwadzina | NPS 2 ", 3", 4", 6", 8", 10", 12" , 14", 16", 18", 20" 24", 28", 32", 36", 40", 48" |
M'mimba mwake mwadzina | Kalasi 150, 300, 600, 900, 1500, 2500. |
Malizani Kulumikizana | Flanged (RF, RTJ, FF), Welded. |
Ntchito | Kugwira Wheel, Pneumatic Actuator, Electric Actuator, Bare Stem |
Zipangizo | A216 WCB, WC6, WC9, A352 LCB, A351 CF8, CF8M, CF3, CF3M, A995 4A, A995 5A, A995 6A, Aloyi 20, Monel, Inconel, Hastelloy, Aluminium Bronze ndi zina zapadera. |
A105, LF2, F5, F11, F22, A182 F304 (L), F316 (L), F347, F321, F51, Aloyi 20, Monel, Inconel, Hastelloy | |
Kapangidwe | Kunja Screw & Goli (OS&Y), Pressure Seal Bonnet |
Wopanga ndi Wopanga | API 600, API 603, ASME B16.34 |
Maso ndi Maso | ASME B16.10 |
Malizani Kulumikizana | ASME B16.5 (RF & RTJ) |
ASME B16.25 (BW) | |
Kuyesa ndi Kuyendera | API 598 |
Zina | NACE MR-0175, NACE MR-0103, ISO 15848, API624 |
Komanso kupezeka pa | PT, UT, RT, MT. |
Monga katswiri wopanga ma valve opangira zitsulo komanso kutumiza kunja, tikulonjeza kupatsa makasitomala ntchito zapamwamba zotsatsa pambuyo pogulitsa, kuphatikiza izi:
1.Kupereka malangizo ogwiritsira ntchito mankhwala ndi malingaliro okonza.
2.Zolephera zomwe zimayambitsidwa ndi zovuta zamtundu wazinthu, timalonjeza kuti tipereka chithandizo chaukadaulo ndikuthana ndi mavuto munthawi yaifupi kwambiri.
3.Kupatula kuwonongeka komwe kumachitika chifukwa chogwiritsa ntchito mwachizolowezi, timapereka ntchito zokonzetsera zaulere komanso zosinthira.
4.Tikulonjeza kuti tidzayankha mwamsanga pa zosowa za makasitomala panthawi ya chitsimikizo cha mankhwala.
5. Timapereka chithandizo chaumisiri cha nthawi yayitali, kuyankhulana pa intaneti ndi ntchito zophunzitsira. Cholinga chathu ndikupatsa makasitomala chidziwitso chabwino kwambiri chautumiki ndikupangitsa zomwe makasitomala akumana nazo kukhala osangalatsa komanso osavuta.