UHenry Pratt ngumvelisi ohamba phambili weevalve kunye nezixhobo, kunye neminyaka engaphezu kwe-60 yamava enkonzo kwishishini lamandla.
UPratt wangena kwishishini lamandla ngomsebenzi wokulungisa kwi-Federal Edison Building eChicago. Le ndawo yayiyenye yeendawo eziphambili zokuvelisa umbane ze-Edison ngelo xesha. Ivalve iyafuneka kumbhobho wamanzi okwangoku ongenaso isivalo kwaye unendlu encinci yentloko. UHenry Pratt wacelwa ukuba ayile ivalve edibeneyo ukusombulula le ngxaki. Uyilo oluveliswayo sisitulo esilastiki sebhabhathane ivelufa, eya kuthi ngenye imini ibe yeyona mveliso iphambili yenkampani.
Kude kube phakathi kwiminyaka yee-1940s, uPratt waqhubeka nokuvelisa iivalve zebhabhathane ezitywiniweyo ngokweemeko ezithile, kodwa emva kweMfazwe yesibini yeHlabathi, uPratt wagqiba ekubeni aphuhlise ivalve njengomgca wemveliso wamandla kunye nezicelo zezityalo zamanzi. Namhlanje, uHenry Pratt uyinkokeli kumandla kunye neemarike zamanzi.
Ivalve yamanzi enyukliya ye-1100 yinqanaba lesi-2 le-ASME lesi-3 kunye ne-3 yokhuseleko lwenyukliya enxulumene nonikezelo lwamanzi ivelufa yebhabhathane, esukela kubukhulu obusuka kwi-intshi ezi-6 ukuya kuma-intshi ezingama-36 (kwaye inkulu njengoko kufuneka). Umgangatho woyilo ufanelekile kwi-ANSI 150 # ibakala loxinzelelo oluqhelekileyo. Kwiivalvu ezinkulu kune-intshi ezingama-24, ibakala lenkonzo ye-psig ye-75, i-ASME Sec ivumela. III ikhowudi udidi 1678, ekhoyo.
Iimpawu zoyilo zechungechunge lwe-1100 ziquka umzimba we-flange, owenziwe ngezinto ezihambelana ne-SA-216, Gr. WCB okanye SA-516, Gr. 70; I-disc ye-valve, enokuveliswa okanye i-cast structure okanye i-carbon steel. I-carbon steel disc inomphetho wesihlalo sevalve yensimbi engenasici, egubungela bonke ububanzi bendawo yokuhlala yevalve; kunye nesitulo sevalve yerabha, ebotshelelwe ngokusisigxina okanye elungiswe ngoomatshini kumzimba wevalvu ngaphandle kokusetyenziswa kwezibophelelo ezinemisonto. I-valve shaft inokuba sisakhiwo esinye esidlulela kwi-disc ye-valve, okanye inokubandakanya i-shaft ephindwe kabini efakwe kwi-disc hub ye-valve.
Ivalve yomoya yenyukliya ye-1200 yi-ASME Udidi lwesi-2 kunye noDidi 3 lwenkonzo yokhuseleko lwenyukliya enxulumene nenkonzo yomoya ivelufa yebhabhathane, esukela kubukhulu obusuka kwi-intshi ezi-6 ukuya kuma-48 intshi. Umgangatho woyilo ufana nochungechunge lwe-1100.
Iimpawu zokuyila ze-1200 series zifana nezo ze-1100 series, kubandakanywa nomzimba we-flange, i-disc ye-valve ye-valve ye-prefabricated okanye i-cast iron structure kunye nesihlalo serabha esilungisiweyo kunye nesiguquguqukayo, kunye nesakhiwo esinye okanye i-shaft-piece-piece shaft. .
Ivalve yamanzi enyukliya ye-1400 yinqanaba lesi-2 le-ASME kunye ne-3 lokhuseleko lwenyukliya enxulumene nonikezelo lwamanzi ivelufa yebhabhathane, esukela kubukhulu ukusuka kwi-intshi ezi-3 ukuya kuma-intshi ezingama-24. Umgangatho woyilo ufanelekile kwibakala loxinzelelo oluqhelekileyo ANSI 150 # ibakala.
Iimpawu zoyilo kunye nezakhiwo ze-1400 series zixelisa uchungechunge lwe-1100 kuba ukusetyenziswa kwazo kuyafana.
I-valve ye-butterfly etywiniweyo ye-Triton XR-70 ihlangabezana neemfuno ze-AWWA C504, ukusuka kubukhulu obusuka kwi-intshi ezingama-24 ukuya kwii-intshi ze-144. Izimbo zomzimba zevalve eziqhelekileyo ziyi-flange x isiphelo se-flange, i-mechanical joint (MJ) ekupheleni (i-24 intshi-48 intshi), kunye ne-flange kunye ne-MJ ekupheleni (i-24 intshi, i-30 intshi, kunye ne-36 intshi).
Iimpawu ze-Triton ziquka i-Pratt E-Lok isihlalo soyilo kunye noyilo lwetreyi yokujikeleza. Uyilo lwesitulo sevalve ye-E-Lok luyamkelwa, kwaye isihlalo sevalve yerabha sifakwe kumzimba wevalvu ukubonelela ngokuvalwa komoya. Uyilo lwetreyi yokujikeleza lufezekisa amandla aphezulu kunye nobunzima obulula kunalo naluphi na uyilo lwetreyi ekhoyo ngoku kwimarike. Ikhonkco lenkampani www.henrypratt.com
Iindaba zamandla kunye namanqaku anzulu abonisa amandla amatsha kunye nentsingiselo kutshintshiselwano lwamva nje lwabaxhasi bamandla, amandla ahlaziyekayo, ilanga, umoya ophuma elunxwemeni, amandla ombane, amalahle kunye namandla enyukliya.
Ixesha lokuposa: Oct-11-2021
