"Ukhetho lweeValufa zeGlobe zeSteel eziSebenzayo zaseMelika: Izikhokelo zeeNgcaciso, iiReyithingi zoxinzelelo, kunye neMathiriyeli"

"Ukhetho lweeValufa zeGlobe zeSteel eziSebenzayo zaseMelika: Izikhokelo zeeNgcaciso, iiReyithingi zoxinzelelo, kunye neMathiriyeli"

Ivalve yeglowubhu yentsimbi esemgangathweni yaseMelika sisivalufa esisetyenziswa ngokuqhelekileyo kwimizi-mveliso, sisetyenziswa kakhulu kwimimandla efana nepetroleum, imichiza, kunye nonyango lwamanzi. Kubalulekile ukukhetha ivalve yeglowubhu yentsimbi esemgangathweni yaseMelika esemgangathweni ukuqinisekisa ukusebenza ngokukhuselekileyo kwezixhobo kunye nokwandisa inkqubo yokuvelisa. Eli nqaku liza kwazisa iiparameters eziphambili ekufuneka ziqwalaselwe xa ukhetha iivalvu zeglowubhu yentsimbi esemgangathweni yaseMelika, kubandakanywa iinkcukacha, iireyithingi zoxinzelelo, kunye nemathiriyeli, ukukunceda wenze ukhetho lobulumko.

1, Ukukhetha okucacisiweyo

1. Idayamitha yegama: Idayamitha yegama leevalvu zeglowubhu yentsimbi egayiweyo yomgangatho waseMelika kufuneka ihambelane nobubanzi benkqubo yombhobho. Khetha imilinganiselo yevalve efanelekileyo ngokusekelwe kwiimfuno zokwenyani.
2. uxinzelelo lwegama: uxinzelelo lwegama lubhekiselele kuxinzelelo oluphezulu olunokuthi ivalve imelane nayo phantsi kweemeko eziqhelekileyo zokusebenza. Xa ukhetha i-American standard cast cast steel globe valves, kufuneka kuqinisekiswe ukuba uxinzelelo lwegama lwevalve lukhulu okanye lulingana noxinzelelo oluphezulu lomsebenzi wenkqubo yombhobho.
3. Indlela yoqhagamshelo: Iindlela zoqhagamshelo zomgangatho waseMelika iivalvu zeglowubhu zentsimbi zibandakanya uqhagamshelo oludityanisiweyo, uqhagamshelo lweflange, njl.

2. Ukukhetha inqanaba loxinzelelo

Iqondo loxinzelelo lwemigangatho ye-American cast cast iron globe valves idla ngokwahlulahlulwe yangamanqanaba amane: uxinzelelo oluphantsi, uxinzelelo oluphakathi, uxinzelelo oluphezulu, kunye noxinzelelo oluphezulu. Xa ukhetha, umgangatho woxinzelelo olufanelekileyo kufuneka ukhethwe ngokusekelwe kwiimeko zangempela zokusebenza.

1. Ukulinganisa uxinzelelo oluphantsi: olufanelekileyo kwiimeko apho uxinzelelo oluphakathi lungaphantsi okanye lulingana ne-1.6MPa.
2. Umlinganiselo woxinzelelo oluphakathi: ufanelekile kwiimeko apho uxinzelelo oluphakathi lungaphezu kwe-1.6 MPa kwaye lungaphantsi okanye lulingana ne-10.0 MPa.
3. Inqanaba loxinzelelo oluphezulu: olufanelekileyo kwiimeko apho uxinzelelo oluphakathi lukhulu kune-10.0MPa kwaye lungaphantsi okanye lulingana ne-42.0MPa.
4. Inqanaba loxinzelelo oluphezulu lwe-Ultra: lufanelekile kwiimeko apho uxinzelelo oluphakathi lungaphezu kwe-42.0MPa.

3. Ukukhetha izinto eziphathekayo

Imathiriyeli yeevalvu zeglowubhu yentsimbi esemgangathweni yaseMelika inefuthe elibalulekileyo ekuxhathiseni umhlwa, ukumelana nobushushu, kunye namandla. Khetha izixhobo ezifanelekileyo zevalve, njengentsimbi yekhabhoni, intsimbi engatyiwa, ingxubevange, njl.

1. Izinto zentsimbi yeCarbon: zilungele iimeko zokusebenza ngokubanzi apho i-medium ingamanzi, umphunga, ioli, njl.
2. Izinto zensimbi ezingenasici: zilungele iimeko zokusebenza kunye nolwelo olonakalisayo, iigesi, njl., kwaye inokumelana ne-corrosion.
3. Izinto ze-alloy: zilungele iimeko ezikhethekileyo zokusebenza ezifana nobushushu obuphezulu, uxinzelelo oluphezulu, kunye nokubola, kunye namandla aphezulu kunye nokuxhathisa ukubola.

Isishwankathelo:

Ukukhetha ivalve yeglowubhu yentsimbi esemgangathweni yaseMelika idinga ukuqwalaselwa ngokupheleleyo kweeparamitha eziphambili ezifana neenkcukacha, amanqanaba oxinzelelo, kunye nezixhobo. Kubunjineli obusebenzayo, ukucaciswa kwevalve, amanqanaba oxinzelelo, kunye nezixhobo zikhethwa ngokufanelekileyo ngokusekwe kwiimfuno kunye neempawu eziphakathi kweenkqubo zemibhobho ukuze kuqinisekiswe ukusebenza ngokukhuselekileyo, okuzinzileyo kunye nokusebenza kakuhle kweevalvu. Ukuba kukho iimfuno ezikhethekileyo, i-American standard cast iron globe valves ezinezakhiwo ezikhethekileyo zinokuthi zenziwe ngokwezifiso ukuhlangabezana neemfuno zeemeko ezithile zokusebenza.