Umgangatho we-AWWA yi-American Water Works Association yaqala ukupapasha amaxwebhu emvumelwano kwi-1908. Namhlanje, kukho ngaphezu kwe-190 yeMigangatho ye-AWWA.Ukusuka kumthombo ukuya kwindawo yokugcina, ukusuka kunyango ukuya ekuhanjisweni, iMigangatho ye-AWWA igubungela iimveliso kunye neenkqubo ezinxulumene nazo zonke iindawo zokunyanga nokubonelela ngamanzi.I-AWWA C504 yeyommeli oqhelekileyo, luhlobo lwevalve yesitulo sebhabhathane serubble.
Ivalve yebhabhathane ye-AWWA C504 ineendlela ezimbini, umgca ophakathi wetywina elithambileyo kunye netywina elithambileyo eliphindwe kabini, ngokuqhelekileyo, ixabiso letywina elithambileyo eliphakathi liya kuba liphantsi kune-eccentric ephindwe kabini, ngokuqinisekileyo, oku kwenziwa ngokubanzi ngokweemfuno zabathengi.Ngokuqhelekileyo uxinzelelo olusebenzayo lwe-AWWA C504 yi-125psi, i-150psi, i-250psi, izinga loxinzelelo lwe-flange yi-CL125, CL150, CL250.
I-valve ye-butterfly ye-AWWA C504 isetyenziswa kakhulu kwiiprojekthi zonyango lwamanzi, i-medium efunekayo ngamanzi ngaphandle kokungcola, iimpawu ze-rubber ye-rubber yomeleza ukusebenza kokutywinwa kwevalve, ukuze i-valve ikwazi ukufezekisa ukuvuza kwe-0.Ekukhethweni kwesixhobo somzimba we-valve, ngokuqhelekileyo i-iron ductile iyona nto iphambili, ilandelwa yi-carbon steel nayo inokwenzeka.Ukukhetha umsesane wokutywina we-valve disc, EPDM, NBR, NR ziyafumaneka, ngokweemfuno zomthengi ukwenza ukhetho.
Xa kuthelekiswa EN558-13,14 iivalve butterfly series, AWWA C504 butterfly ivelufa inomzimba otyebileyo kunye nedayamitha ejiyile yokusonta, kwaye kukho kwakhona umahluko omncinane kwezinye imilinganiselo, leyo inokubonwa kule theyibhile imilinganiselo elandelayo.Ewe, kulo msebenzi, akukho mahluko mkhulu kunye nezinye iivalve zebhabhathane ezitywinwe ngerabha.
Ngabaphi abavelisi abanokwenza i-AWWA C504 butterfly valve e-China?Ngokokwazi kwam, akukho baninzi abavelisi abanokwenza i-valve yebhabhathane ye-AWWA C504, iifektri ezininzi zinamava amaninzi ekuveliseni i-EN558-13/14 i-valve ye-butterfly series, kwaye ayinamava amaninzi ekuveliseni i-valve ye-butterfly ye-AWWA C504, i-Tianjin Zhongfa. I-valve yenye yabakhiqizi abanokuvelisa i-AWWA C504 i-butterfly valve, i-Valve ye-Zhongfa ine-mold yayo kunye ne-workshop yayo yokucubungula, enokugqiba ukuveliswa kwevalve yebhabhathane ngomgangatho kunye nobuninzi.
Oku kulandelayo i-valve ye-butterfly ye-AWWA C504 eveliswe yi-Tianjin Zhongfa Valve, Ukuba ufuna ukwazi ngakumbi malunga neemveliso ze-AWWA C504, unokuqhagamshelana nathi.
