I-American Standard Rising Stem Flanged Gate Valve

UmGaqo wokuSebenza we-ASME wokuKhuphuka kweSithi esiFlenge iValve yeSango

Xa umqhubi ejika ivili lesandla, ivili lesandla liqhuba isikhondo sevalve ukuze sijike. Umsonto wetrapezoidal kwisiphelo esiphezulu sesikhondo sevalve udibana ne-valve stem nut, ukuguqula intshukumo ejikelezayo ibe sisindululo somgca we-axial. Ekubeni i-valve stem kunye nesango zixhunyiwe, i-valve stem iya kuqhuba isango ukuba liphakame okanye liwe kunye.

Ukuvula ivalve, jikisa ivili lesandla ngokunxamnye newotshi. Isiqu sevalve siqhuba isango ukuba linyukele phezulu kwintshukumo yomgca, nto leyo ebangela ukuba isango lizikhuphe kwisitulo sevalve. Xa isango liphakanyiselwe kubude obulingana nobukhulu obuphindwe kabini be-valve ye-diameter, i-fluid passage ayithinteki ngokupheleleyo, kwaye i-valve isendaweni evulekile ngokupheleleyo. Ngexesha lokusebenza, ivili lesandla lijikwa kwindawo apho lingenako ukuphinda lijike, lize lijikwe umva isiqingatha sojiko ukuya kwelinye ukufezekisa indawo evuleke ngokupheleleyo, ukuthintela isiqu sevalve ekutshixekeni ngenxa yotshintsho lobushushu.

Ukuvala ivalve, jika ivili lesandla ngokwewotshi. Isiqu sevalve siqhubela isango ukuba liye ezantsi ngendlela eshukumayo, nto leyo ebangela ukuba isango licinezele isitulo sevalve. Itorque esetyenziswa livili lesandla yenza amandla okutywina okunyanzelisiweyo, kwaye noxinzelelo lwesixhobo esiphakathi kumbhobho nalo lucinezela isango ngokuchasene nesinye isitulo sevalve, senza isiphumo sokuzitywina. Esi senzo simbini siqinisekisa ukuvuza kweqanda xa ivaliwe.

Olona phawu luphambili lwevalve yesango lokunyuka kwesiqu kukuba isiqu sevalve siyenyuka kwaye siwe ngokuhambelana nesango. Abasebenzisa i-valve banokuyibona ngokubona imeko evulekileyo/evaliweyo yevalve ngokujonga ubude besikhondo sevalve esidlulela ngaphaya kwesigqubuthelo sevalvu—okukhona isikhondo sikhula, kokukhona ivalve ivuleka; xa isiqu sihoxisiwe ngokupheleleyo, ivalve ivaliwe.

Kubaluleke ngakumbi ukuqaphela ukuba i-ASME (i-American Standard) i-stem flange ephakamayo yeevalvu zesango zingasetyenziswa kuphela kwiindawo ezivuleke ngokupheleleyo okanye ezivaliweyo kwaye azinakusetyenziswa njengezivalo zolawulo. Ukuba ithe yashiywa kwindawo evuleke kancinane ixesha elongeziweyo, isithuba esihamba ngesantya esiphezulu siya kukhukulisa umphezulu wokutywina, oko kubangele ukuguga kwesango kunye nesihlalo, okukhokelela ekuvuzeni kwevalvu. Ngaphaya koko, indawo ephakathi inokuqukuqela ukusuka nakweliphi na icala lesivalo sesango kulo naliphi na icala, ishenxisa imfuneko yokuqwalasela indlela yokuhamba ngexesha lofakelo kunye nokuququzelela uyilo lwesiza.

Iiparamitha zeMveliso

Ubushushu obuphezulu kunye noKuchasana noxinzelelo oluPhezulu

I-Shenchi ASME Standard Rising Stem Flanged Gate Valves iqhayisa ngeenzuzo ezimbini eziphambili zokusebenza: ukumelana nobushushu obuphezulu kunye nokumelana noxinzelelo oluphezulu. Izinto ze-WCB zinokumelana namaqondo obushushu ukuya kuthi ga kwi-425 ℃, ngelixa insimbi engenasici ifanelekile kuluhlu olubanzi lobushushu. Umgangatho woxinzelelo lwe-Class 150, uxinzelelo lokusebenza lufikelela kwi-1.9MPa kwindawo yokushisa, idlula umgangatho we-PN16. Amatywina afumaneka kwi-PPL yokumelana nobushushu obuphezulu okanye kwiintlobo ze-EPDM ezinganyangekiyo ngamanzi. Yenziwe e-China, i-Shenchi isebenzisa ukulawulwa komgangatho obanzi ukusuka kwizinto eziluhlaza ukuya kwiimveliso ezigqityiweyo, ukuqinisekisa ukusebenza okuzinzile kwexesha elide phantsi kobushushu obuphezulu kunye neemeko zoxinzelelo oluphezulu.

Ukusebenza okuthembekileyo koxinzelelo oluphezulu oludlula imigangatho ye-Class 150

Ivalve yesango le-Shenchi ye-ASME B16.10 iqhayisa ngokuxhathisa okuthembekileyo koxinzelelo oluphezulu. Uxhulumaniso lwe-flange luhambelana nemigangatho ye-ASME B16.10, kunye neebholiti eziqiniweyo ngokulinganayo kunye nokusabalalisa okufanayo koxinzelelo kwi-gaskets. Ukulinganiswa kweKlasi ye-150 inika uxinzelelo olusebenzayo lwe-1.9 MPa kwiqondo lokushisa, kunye nomda woxinzelelo olwaneleyo. Ubukhulu bodonga lomzimba wevalvu iyilwe ngokwemigangatho ye-ASME, igqitha imigangatho yelizwe yokhuseleko olongeziweyo. I-Shenchi ibonelela ngesaphulelo se-ASME somgangatho wokunyuka kweevalvu zesango le-flange; ukuthengwa kwezinto ezininzi kufanelekile ukufumana izaphulelo kunye nokuqinisekisa ukusebenza okuzinzileyo kwexesha elide phantsi kweemeko zoxinzelelo oluphezulu.

Ukuthengwa ngokuthe ngqo kwi-Factory kunye neNkxaso yoLungiso lwe-OEM

I-Shenchi, njengomthengisi we-ASME (uMgangatho waseMelika) onyukayo we-stem flange iivalvu zesango, unikezela ngeenkonzo zokwenza isampulu. Sinikezela ngesaphulelo se-ASME sokunyuka kwe-stem flange iivalvu zesango ngamaxabiso acacileyo efektri, sisusa uphawu lwabaphakathi. Sixhasa i-ODM kunye ne-OEM yokwenza ngokwezifiso; imathiriyeli, iidayamitha, imigangatho yeflange, kunye neendlela zokusebenza zonke zinokuhlengahlengiswa kwiimfuno zakho. I-ASME yethu yokunyuka kwe-stem flange iivalvu zesango kulula ukuyigcina, kunye nesakhiwo esilula kunye neendleko zokugcinwa okuphantsi. Yenziwe e-China, i-Shenchi ASME i-valve yesango ye-stem flange ekhulayo ithembekile kumgangatho kwaye inamaxesha azinzileyo okuhanjiswa. Abathengi behlabathi bamkelekile ukuba baqhagamshelane ne-Shenchi ngeenkcukacha zeeparamitha zobugcisa kunye neekowuteshini ezikhethiweyo zamva nje.