Valavu ya Gulugufe Yogwira Ntchito Kwambiri Yokhala ndi Mphamvu Yaikulu
Thevavu ya gulugufe ya eccentric yokhala ndi magwiridwe antchito ambiri— yomwe imadziwikanso kuti valavu ya gulugufe ya double offset — ndi chinthu chapamwamba kwambiri chopangidwa ndi ukadaulo wapamwamba kwambiri padziko lonse lapansi wogwirira ntchito zamafakitale. Ili ndi ma offsets awiri osiyana omwe amachotsa diski kuchokera pampando nthawi yomweyo ikatsegulidwa, zomwe zimapangitsa kuti mpando usakhudze nthawi zonse pamene ukugwira ntchito — ubwino waukulu kuposa ma valve a gulugufe a concentric.
Kupsinjika kwa diski kumatulutsidwa pakangopita madigiri ochepa okha, zomwe zimachepetsa kuwonongeka kwa chisindikizo cha diski nthawi yonse ya moyo wa valavu. Kapangidwe kake kawiri kamachepetsa mphamvu yogwirira ntchito, kamachepetsa kukangana ndi kusowa kwa mipando, ndipo kamaonetsetsa kuti kutsekedwa kodalirika ngakhale kutentha kapena kupanikizika kwasintha mwadzidzidzi - zomwe zimapangitsa kuti ikhale chisankho chomwe chimakondedwa kwambiri m'malo ogwirira ntchito omwe ali ndi kuthamanga kwambiri, kutentha kwambiri, komanso chitetezo. Ndi satifiketi yoteteza moto ya API 607 ndi satifiketi ya ATEX, mavavu a butterfly a Nortech awiri opangidwa bwino kwambiri ndi oyenerera kugwira ntchito molimbika komanso koopsa.
Ma valve onse amatsimikiziridwa kuti ndi aMayeso a moyo wa ma cycle 1,000,000ndi magwiridwe antchito otsimikizika a mbali ziwiri, omwe akukwaniritsa miyezo yapamwamba kwambiri yodalirika komanso yotetezeka kwa nthawi yayitali.
Nortech imasunga zida zambiri zoyeretsera ma valve body, kuonetsetsa kutikutumiza mwachangu mkati mwa masabata 3-5pa maoda ambiri wamba.
Mawonekedwe awiri a disc offset— diski imachoka pampando ikangotseguka pang'ono, zomwe zimapangitsa kuti mpando usamayende bwino nthawi yonse yomwe ukuyenda komanso kutalikitsa moyo wa mpando poyerekeza ndi mapangidwe ake ozungulira.
| Kapangidwe | API 609 / ASME B16.34 |
| Kulumikiza komaliza | Wafer / Lug / Yopindika kawiri |
| Ntchito | Manja / Pneumatic / Magetsi |
| Kukula kwa mitundu | NPS 2″–60″ (DN50–DN1500) |
| Kuyeza kwa kupanikizika | Kalasi ya ASME 150 / 300 / 600 | PN16 / PN25 / PN40 |
| Kutentha | −29°C mpaka 250°C |
| Thupi | Chitsulo cha kaboni, chitsulo chosapanga dzimbiri, chitsulo cha alloy, duplex SS, Alu-bronze |
| Disiki | Chitsulo chosapanga dzimbiri, duplex SS, Alu-bronze |
| Tsinde | 17-4PH, duplex SS, Monel |
| Mpando | PTFE / RPTFE / PPL |
| Kulongedza tsinde | Graphite |
| Mabolt ndi mtedza | Chitsulo chosapanga dzimbiri |
Chopangidwa kuti chigwiritsidwe ntchito poyendetsa njinga mwachangu monga machitidwe olekanitsa mpweya, valavu imatha kumaliza kuzungulira kwathunthu kotseguka/kutseka mkati mwa sekondi imodzi, ndi moyo wotsimikizika wautumiki wofika ma cycle ogwirira ntchito 1,000,000.
Zipangizo za mpando wa PPL zimayesedwa kuti zigwiritsidwe ntchito mosalekeza mpaka 250°C, zomwe zimapangitsa kuti valavu ikhale yoyenera kugwiritsa ntchito makina opangira kutentha kwambiri.
Kapangidwe kake kameneka kamapereka kutseka kodalirika kwa magawo 6 a mbali ziwiri pansi pa mikhalidwe yamphamvu kwambiri, ndi magwiridwe antchito otsimikizika mu makina opukutira a condensate ndi ntchito zina zofanana zovuta.
Ma valve operekera mpweya amachotsedwa mafuta mokwanira ndikusonkhanitsidwa motsatira njira zoyera kwambiri, zomwe zimakhudza magawo onse okonzekera, kusonkhanitsa, kuyesa, ndi kulongedza mogwirizana ndi zofunikira pakupereka mpweya.
Satifiketi ya API 607 yoteteza moto ndi satifiketi ya ATEX zimapangitsa kuti valavu igwiritsidwe ntchito m'malo ogwirira ntchito omwe angayake moto, kuphulika, komanso omwe angawopseze moto.










