Uyilo kunye neMigangatho yokuSebenza ye-American Standard Cast Steel Globe Valves

Uyilo kunye neMigangatho yokuSebenza ye-American Standard Cast Steel Globe Valves

Kwiinkqubo zemibhobho yemizi-mveliso, iivalvu zeglowubhu yentsimbi esemgangathweni yaseMelika zaziwa ngokubanzi ngokuqina kwazo okugqwesileyo kunye nokuthembeka. Le valve yenzelwe kwaye yenziwe ngokungqongqo ngokuhambelana neenkcukacha ezisekwe yi-American National Standards Institute (ANSI) kunye ne-American Petroleum Institute (API). Oku kulandelayo kuya kunika uhlalutyo olucacileyo lweempawu zoyilo lwe-American standard cast iron globe valves kunye nemigangatho yokusebenza abayilandelayo.

Iimpawu zoyilo

1. Ukukhetha izinto eziphathekayo: Izivalo zeglobhu zentsimbi zaseMelika zidla ngokuphoswa kusetyenziswa i-ASTM intsimbi echaziweyo, njenge-ASTM A126 yebakala le-WCB (i-carbon steel castings), ukuqinisekisa ukuba i-valve inamandla omatshini kunye nokumelana nokubola.
2. Uyilo lokutywina: Isihlalo sevalve kunye nediski ziyilwe ngokuhambelana ngokuchanekileyo ne-conical okanye iindawo zokutywina ezijikelezayo ukuze kuqinisekiswe ukuthintela okusebenzayo kokuvuza okuphakathi kwimeko evaliweyo kunye nokufezekisa umphumo wokuvala.
3. I-valve stem anti blowout uyilo: Ukuthintela isiqu sevalve ekubeni sivuthelwe liphakathi ngexesha lokusebenza koxinzelelo oluphezulu, ivalve yeglowubhu yentsimbi esemgangathweni yaseMelika iyilwe ngesixhobo esichasene nokuvuthela, esiphucula ukhuseleko lwevalve.
4. Uyilo lokhuseleko lomlilo: Ngokutsho komgangatho wokhuseleko lomlilo we-API 607, ezinye iivalve zeglobhu zensimbi ezisemgangathweni zaseMelika zenzelwe izakhiwo ezinokumelana nomlilo, ezinokugcina isakhono esithile sokutywinwa nakwimeko yomlilo, ukuqinisekisa ukhuseleko lwenkqubo.
5. I-valve stem seal: I-valve stem seal component isetyenzisiweyo, eqinisekisa ukukhuhlana okuphantsi ngexesha lokuvula nokuvalwa, kwaye kulula ukuyigcina kunye nokubuyisela.
6. Ukusebenza kwe-Handwheel: Ukuze kube lula ukusebenza kwesandla, iivalvu zeglobhu zentsimbi zaseMelika zihlala zixhotyiswe ngevili lesandla, kwaye ubungakanani kunye noyilo lwamandla oyilo lwesandla luhlangabezana neemfuno ze-ANSI ukuze zisetyenziswe lula ngumqhubi.

Imigangatho yokusebenza

1. Ukulinganiswa koxinzelelo: I-American standard cast cast steel globe valves ihlelwa ngokwemigangatho efanelekileyo efana ne-ANSI / ASME B16.34, njengeKlasi ye-150 kunye neKlasi ye-300, ukuqinisekisa ukusebenza okukhuselekileyo phantsi kweengcinezelo ezahlukeneyo.
2. Uluhlu lobushushu: Ngokoluhlu lobushushu bezinto ze-ASTM, i-American standard cast cast steel globe valves zifanelekile kwiindawo ezahlukeneyo zokusebenza ukusuka kumaqondo aphantsi ukuya phezulu.
3. Inqanaba lokuvuza: Ngokomgangatho wokuvuza we-FCI-70-2 (uPhando lweFactory Mutual), iivalvu zeglobhu zentsimbi zaseMelika zibonelela ngamanqanaba ahlukeneyo omsebenzi wokutywina ukuhlangabezana neemfuno ezahlukeneyo zokusetyenziswa kwamashishini.
4. Ukumelana nokugqwala kwezinto: Ukubunjwa kweekhemikhali kunye nenkqubo yokunyanga ukushisa kwezinto kuhambelana nemimiselo ye-ASTM, ukuqinisekisa ukuba i-valve ingakwazi ukugcina ukuxhathisa okulungileyo kwi-corrosion media.
5. Isiqinisekiso seMveliso: Izivalo zeglowubhu zentsimbi zaseMelika zihlala zifuna uthotho lwezatifikethi zemveliso, kubandakanya uvavanyo loxinzelelo, uvavanyo lokusebenza kunye novavanyo lokumelana nomlilo, ukuqinisekisa ukuba ziyahlangabezana neemfuno zemigangatho efanelekileyo.

Isishwankathelo, i-American standard cast iron globe valves igxininisa ekusebenzeni kunye nokhuseleko kuyilo lwazo, kwaye zenziwe ngokungqongqo ngokuhambelana nemigangatho yelizwe laseMelika kunye nemimiselo yoshishino ukuqinisekisa ukusebenza okuzinzileyo phantsi kweemeko zokusebenza ezigqithisileyo. Nokuba kumacandelo epetroleum, imichiza, irhasi yendalo, okanye amanye amashishini, iivalvu zeglowubhu zentsimbi zaseMelika zibonise ukusebenza kwazo okuphezulu kunye nokuthembeka okuphezulu. Xa ukhetha iivalve ezinjalo, abasebenzisi kufuneka bahlolisise ngononophelo imigangatho abahlangabezana nayo kunye neemfuno zangempela zendawo yokusebenza ukuqinisekisa ukuchaneka kokukhethwa kunye nokusebenza okukhuselekileyo nokuzinza kwenkqubo.