Valavu Yowunikira ya API 594

Valavu YowunikiraMagawo aukadaulo

MTUNDU WA ZOPANGIDWA:

Kukula:NPS 2 mpaka NPS 48

Kuthamanga kwa Magulu:Kalasi 150 mpaka Kalasi 2500

Kulumikiza Komaliza:Wafer, RF, FF, RTJ

Zipangizo:

Kuponya:Chitsulo Chopangidwa ndi Ductile, A216 WCB, A351 CF3, CF8, CF3M, CF8M, A995 4A, 5A, A352 LCB, LCC, LC2, Monel, Inconel, Hastelloy, UB6, Bronze, C95800

MUYENERERO

Mawonekedwe a Kapangidwe:

1. Mbale Zawiri kapena Mbale Imodzi

2. Wafer, Lug ndi Flanged

3. Zosasunga ndi Kusunga

Valavu yowunikira mbale ziwiri ya API 594 imagwiritsidwa ntchito pa mapaipi oyera komanso mafakitale, kuteteza chilengedwe, kukonza madzi, kupereka madzi ndi mapaipi otulutsa madzi m'nyumba zazitali kuti apewe kuyenda mozungulira kwa media. Valavu yowunikira imagwiritsa ntchito mtundu wa wafer, mbale ya gulugufe ndi ma semicircles awiri, ndipo imagwiritsa ntchito kasupe kuti ikakamize kubwezeretsanso, pamwamba pake potseka ikhoza kukhala cholumikizira cha thupi chomwe chimateteza kuvulala kapena rabara, ndipo chitsekocho chili chotakata, ndipo kutsekako ndikodalirika.

Zigawo zotsegulira ndi kutseka za API 594 check valve zimadalira kuyenda ndi mphamvu ya medium kuti zitseguke kapena kutseka zokha kuti medium isabwerere. Valavu imatchedwa check valve. Ma Check valve ali m'gulu la ma valve odziyimira pawokha, omwe amagwiritsidwa ntchito makamaka m'mapaipi pomwe medium imayenda mbali imodzi, ndipo imangolola medium kuyenda mbali imodzi kuti ipewe ngozi.

Malinga ndi kapangidwe ka valavu yowunikira, ikhoza kugawidwa m'magulu atatu:valavu yoyezera kukweza, valavu yoyezera swingndivalavu yoyezera waferMa valve oyezera okwera akhoza kugawidwa m'mitundu iwiri: yoyima ndi yopingasa. Ma valve oyezera ozungulira amagawidwa m'mitundu itatu: valavu imodzi, valavu iwiri ndi valavu yambiri. Vavu yoyezera wafer ndi mtundu wowongoka. Vavu yoyezera ndi valavu yomwe imatha kuletsa madzi kubwerera. Chophimba cha valavu ya valavu yoyezera chimatsegulidwa chifukwa cha kuthamanga kwa madzi, ndipo madziwo amayenda kuchokera kumbali yolowera kupita kumbali yotulutsira madzi. Pamene kuthamanga kumbali yolowera kuli kotsika kuposa komwe kuli kumbali yotulutsira madzi, chophimba cha valavu chimatsekedwa chokha chifukwa cha kusiyana kwa kuthamanga kwa madzi, mphamvu yokoka ndi zinthu zina kuti madziwo asabwerere.

Ngati mukufuna zambiri zokhudza ma valve chonde funsani dipatimenti yogulitsa ya NSW (newsway valve)

Chidziwitso chaukadaulo cha ma valve oyesera a API 594

Kodi muyezo wa API 594 ndi chiyani?

API 594, yomwe idakhazikitsidwa ndi American Petroleum Institute (API), ndiye muyezo wodziwika bwino wamakampani wotchedwa "Check Valve: Flanged, Lug, Wafer, and Butt-welding Types." Mfundo yofunikayi imayang'anira kapangidwe, kusankha zinthu, kukula kwa kapangidwe kake, kulolerana ndi kutentha, komanso njira zowunikira/kuyesa ma valve oyesera mafakitale.

Kukula ndi Kugwiritsa Ntchito API 594

API 594 imagwira ntchito pa ma valve onse awiri a mtundu wa A (afupi ndi maso) ndi mtundu wa B (aatali maso ndi maso). Imafotokoza bwino mapangidwe osiyanasiyana a kapangidwe kake, kuphatikizapo:

• Ma Vavu Oyesera Ozungulira
• Ma Vavu Oyezera Kukweza
• Valavu Yoyang'ana Mbale Yapawiri /Vavu Yofufuzira Ya Wafers
• Ma Valves Oyang'anira Gulugufe
  Muyezowu umagwira ntchito pa kukula kwa ma valve kuyambira DN 150 (NPS 6) mpaka DN 400 (NPS 16). Umayang'anira ma valve opangidwa ndi zipangizo monga chitsulo choyera, chitsulo chosungunuka, chitsulo cha carbon, chitsulo chosapanga dzimbiri, ndi zinthu zina zosakaniza.

Zofunikira pa Kapangidwe ndi Zinthu za API 594

• Kutsatira Kapangidwe: Kapangidwe ka mavavu kuyenera kutsatira mosamalitsa zofunikira za API 594.
• Miyezo Yolumikizira: Malumikizidwe a kumapeto (okhala ndi flanged, lug, wafer, butt-weld) ayenera kutsatira miyeso ndi ma ratings omwe afotokozedwa mu miyezo yotchulidwa monga ASME B16.11 (Socket Welding & Threaded) ndi ASME B16.15 (Cast Bronze Threaded Fittings - Class 125 & 250).
• Kusankha Zinthu: Zinthu zovomerezeka zomwe zimagwiritsidwa ntchito ndi monga chitsulo choyera, chitsulo chosungunuka, chitsulo cha kaboni, chitsulo chosapanga dzimbiri, ndi mitundu yosiyanasiyana ya alloys. Chofunika kwambiri, zinthu zotsekera pamwamba ziyenera kugwirizana ndi njira yogwirira ntchito kuti zitsimikizire kuti ndi zolondola komanso kupewa dzimbiri kapena kuwonongeka.

Kapangidwe ka Vavu ndi Njira Zolumikizira

API 594 imagawa ma valve kutengera maulumikizidwe awo kumapeto:

• Mtundu Wopindika: Umagwiritsa ntchito malekezero opindika kuti ulumikize ma bolt ku ma flange a mapaipi. Ndiwoyenera kwambiri pamakina okhazikika a mapaipi a flange omwe amafunika kulumikizidwa/kuchotsedwa mosavuta.
• Mtundu wa Matako Olumikizira Matako: Uli ndi malekezero opindika kuti ulumikize mwachindunji ku payipi. Wopangidwira ntchito zotentha kwambiri, kuthamanga kwambiri, kapena ntchito zofunika kwambiri pomwe kulimba kwa kutayikira ndikofunikira kwambiri.
• Mtundu wa Lug: Umakhala ndi zoyikapo ulusi (lugs) pa valavu, zomwe zimathandiza kuyika pakati pa ma flange pogwiritsa ntchito mabolt kudzera m'ma lug, oyenera kugwiritsidwa ntchito mopanda malire.
• Mtundu wa Wafer: Umapereka kapangidwe kakang'ono komanso kopepuka komwe kamayikidwa pakati pa ma flange pogwiritsa ntchito mabolts ataliatali ozungulira payipi yonse. Ndi malo abwino kwambiri pamapaipi a mafakitale.

Kuyeza kwa Kupanikizika ndi Kutentha

API 594 imafotokoza bwino momwe ma valve oyesera amagwirira ntchito (PT) amagwirira ntchito potengera zinthu, kapangidwe, ndi kukula kwake. Ma valve amenewa amatsimikizira kuti valve ikhoza kugwira ntchito bwino komanso modalirika pansi pa kutentha ndi kupanikizika komwe kwatchulidwa panthawi yonse ya moyo wake. Opanga ndi ogwiritsa ntchito ayenera kutsatira mosamalitsa malire a PT awa.

Zofunikira pa Kuyang'anira ndi Kuyesa

Ma valve onse oyesera a API 594 amayesedwa ndi kuyesedwa kofunikira kuti atsimikizire magwiridwe antchito ndi umphumphu. Njira zoyesera zimatsatira miyezo yamakampani, makamaka:

• API 598: Kuyang'anira ndi Kuyesa Ma Vavu (kumakhudza mayeso a chipolopolo, mayeso a mipando, mayeso a mipando yakumbuyo, ndi zina zotero).
• ASME B16.10: Miyeso ya Ma Valves Poyang'anizana ndi Poyang'anizana.
  Mayeso ofunikira ndi awa:
• Mayeso a Mphamvu ya Chipolopolo: Amatsimikizira kulimba kwa thupi ndi bonnet zomwe zili ndi kupanikizika.
• Kuyesa Kutayikira kwa Mpando: Kumatsimikizira kuthekera kotseka kwa njira yotsekera.
• Kuyesa Kutseka kwa Kupanikizika Kwambiri: Kumatsimikizira kutsekedwa pansi pa kukakamizidwa kovomerezeka.
• Mayeso Otseka Otsika: Amaonetsetsa kuti atseka pansi pa kupanikizika kochepa.
• Kuyesa Kumbuyo kwa Mpando (ngati kuli koyenera): Kumatsimikizira kutsekedwa kwa tsinde pansi pa kupanikizika pamene valavu yatsegulidwa kwathunthu.

Zipangizo za Newsway Valve Zopangidwa ndi Opanga

TheWopanga Valve wa ku ChinakuchokeraChina, thupi lake la ma valve ndi zinthu zokongoletsa zitha kuperekedwa muYopangidwamtundu ndiKuponyamtundu. Pafupi ndiChitsulo chosapanga dzimbirindiChitsulo cha Kabonizinthu, ifensomavavu opangaMu zipangizo zapadera monga titaniyamu, nickel alloys, HASTELLOY®*, INCOLOY®, MONEL®, Alloy 20, super-duplex, alloys osagwira dzimbiri ndi zipangizo za urea grade.

Zipangizo Zopezeka za Valve