I-Stem engakhuphuki kanye ne-Rising Stem Manual Globe valve

Singabakhi be-valve ochwepheshe ababambe izitifiketi ze-ISO ne-API. Siphethe imishini yokukhiqiza ethuthukisiwe kanye nesethi egcwele yezinhlelo zokulawula ikhwalithi. Futhi samukela ama-oda we-OEM ne-ODM, anamanani amancane avumelana nezimo. Amavalvu ethu eglobhu aqinile athunyelwa ezimakethe emhlabeni wonke futhi athola impendulo engaguquki evela kubo bonke ozakwethu.

Izimfanelo Ezibalulekile

Uyini umehluko omkhulu phakathi kwama-valve e-Non-Rising Stem Manual Globe?

Ohlotsheni lwe-stem olukhuphukayo, isiqu se-valve siya phezulu naphansi kanye nediski lapho sivula noma sivala. Ungakwazi ukwahlulela ngokuqondile isimo esivulekile/esivaliwe ngokubona ukuthi isiqu simi kude kangakanani, okwenza ukuhlola kwansuku zonke kube lula kakhulu.

Ngomklamo we-stem ongakhuphuki, isiqu sizungeza kuphela endaweni ngaphandle kokunwebeka ngaphandle. Intambo yangaphakathi ishayela idiski ukuthi ihambe. Kuthatha isikhala esincane kakhulu esiqondile, esilungele amapayipi afakwe emigodini emincane, amakhabethe angaphansi noma ezindaweni ezinobude obulinganiselwe.

Yiziphi izinto ezisetshenziswayo ozihlinzekayo zalezi zinhlobo ezimbili zamavalvu egilobhu okwenziwa ngesandla?

Sihlinzeka nge-carbon steel WCB nezinketho zensimbi engagqwali 304 / 316L. I-WCB ifanele isitimu, uwoyela kanye noketshezi olujwayelekile lwezimboni olunesidingo esiphezulu sokushisa. Izinguqulo zensimbi engagqwali zisebenza kangcono ngokumelene namanzi olwandle, amanzi anosawoti kanye namakhemikhali adlayo abuthaka. Wonke ama-castings adlula ekuhlolweni kwezinto eziqinile ngaphambi komshini.

Ingabe womabili amavalvu e-Non-Rising Stem Manual Globe angalawula ukugeleza ngaphandle kokuvala?

Yebo, yomibili imiklamo isekela ukulungiswa kokugeleza okunembayo kanye nokunqanyulwa okuphelele kwamapayipi. Isakhiwo sazo sokunquma sangaphakathi sikuvumela ukuthi uvule kancane i-valve ukuze uzinzise ukugeleza okuphakathi nendawo nokucindezela kwepayipi, hhayi nje ukuvuleka ngokugcwele noma ukuvala ngokugcwele njengama-valve ebhola. Asetshenziswa kakhulu emigqeni edinga ukulawulwa kokugeleza okuqhubekayo.

Yikuphi ukucindezela kanye nezinga lokushisa okungasingathwa la mavalvu embulunga?

Amabanga okucindezela ajwayelekile amboza i-PN16, i-PN25, i-PN40 ne-Class 150, 300. Izinga lokushisa elisebenzayo lisukela ku- -29°C lifika ku-425°C. Okubalulekile kwe-WCB kusebenza kahle kumasistimu omusi wezinga lokushisa eliphezulu, kuyilapho insimbi engagqwali igcina ukusebenza okuzinzile kumidiya yezinga lokushisa eliphansi elonakalisayo.

Yiziphi izindinganiso ze-flange ezitholakalayo?

Sikhiqiza ama-flange ahambisana namazinga e-ANSI, i-DIN, i-GB kanye ne-JIS. Ubuso obuphakanyisiwe be-RF kanye nezindawo zokuvala ubuso eziyisicaba ze-FF zombili azikhethela. Uma isayithi lakho linezidingo ezikhethekile zembobo ye-bolt, singakwazi ukulungisa usayizi wokumba i-flange ngokuya ngemidwebo yakho.

Yiziphi izinketho zokuvala ozinikezayo zemidiya esebenzayo ehlukene?

Izinhlobo ezintathu zokuvala ezijwayelekile zokukhethwa:

I-PTFE ethambile yophawu: ukuvuza okuyiziro, ilingana noketshezi oludlayo olusezingeni lokushisa elivamile;

I-graphite packing seal: ukumelana nokushisa okuphezulu, ukufanisa okungcono kakhulu kwamapayipi omusi;

Metal hard seal: ukumelana nokugqokwa, okusetshenziselwa uketshezi olunomfutho ophezulu olunokungcola okuncane okuqinile.

Yimaphi osayizi abasesitokweni, futhi ungakwazi ukwenza osayizi bangokwezifiso?

Osayizi abajwayelekile DN15 kuya ku-DN300 bagcinwa esitokweni ukuze balethwe ngokushesha. Ngosayizi abakhulu ngaphezu kwe-DN300 noma i-non-standard bore, samukela ukukhiqizwa ngokwezifiso okuphelele. Bonke ubukhulu buzohlolwa kabili ngaphambi kokupakishwa nokuthunyelwa.

Yiziphi izimo zezimboni ezilingana nalawa mavalvu we-Non-Rising Stem Manual Globe?

Asetshenziswa kakhulu eziteshini zikagesi, ezimbonini zamakhemikhali, eziteshini zokushisisa isitimu, ezindaweni zokuhlanza amanzi kanye namapayipi asekela igesi kawoyela. Izinhlobo zeziqu ezikhulayo zikhethwa kumapayipi angaphezulu komhlaba anokufinyelela kalula ekuhloleni. Izinguqulo ze-stem ezingakhuphuki zidume kakhulu kumapayipi agqitshwe ngaphansi komhlaba namagumbi emishini ehlangene.

Ingabe uyayisekela i-OEM nomsebenzi owenziwe ngokwezifiso?

Sithatha ama-oda e-OEM ne-ODM avumelana nezimo ukuze afane nezidingo zephrojekthi yakho. Singakwazi ukuqopha uphawu lomkhiqizo wakho nge-laser emizimbeni yamavalvu, silungise ingcindezi nezinga lokushisa, sishintshe izinto zokuvala uketshezi olukhethekile, sihlele kabusha umumo wamasondo esandla, futhi silungise izingxenye zangaphakathi njengoba ucela. Iphakheji yokuthumela ngokwezifiso iyatholakala.

Kuthiwani ngesikhathi sakho sokulethwa?

Ama-valve ajwayelekile avela esitokweni angathunyelwa phakathi kwezinsuku ezi-3-7 zokusebenza kumaphrojekthi aphuthumayo. Amavalvu enziwe ngokwezifiso nama-oda amakhulu enqwaba athatha cishe izinsuku ezingama-30 kuya kwezingama-40 zokusebenza. Sizoqinisekisa ishejuli yokulethwa egxilile nawe ngaphambi kokufaka i-oda ngokusekelwe kubuningi bakho nohlelo lokukhiqiza lwasembonini.

Kungani ukhetha i-valve yeglobhu phezu kwe-valve yebhola ukuze ulawule ukugeleza?

Ama-valve ebhola asebenza kahle kuphela ngaphansi kwesimo esivulekile noma esivalwe ngokugcwele; ukuvuleka kwengxenye kuzoholela ekugugulekeni okukhulu ezindaweni ezivaliwe. Ama-valve embulunga anezikhala zangaphakathi ezigobe ngokukhethekile, ezinciphisa umthelela ezimpahleni zasolwandle ngesikhathi sokushibilika. Babambe ukusebenza okuzinzile komsebenzi wokulungisa ukugeleza njalo kwesikhathi eside.