Indlela yokukhetha ivalvu yeglobe—iTWS Valve

Iivalvu zeGlobe zisetyenziswa kakhulu kwaye zineentlobo ezininzi. Iintlobo eziphambili zezi: iivalvu zeglobe ze-bellows, iivalvu zeglobe ze-flange, iivalvu zeglobe zangaphakathi ze-thread, iivalvu zeglobe zentsimbi engatyiwayo, iivalvu zeglobe ze-DC, iivalvu zeglobe zenaliti, iivalvu zeglobe ezimile okwe-Y, iivalvu zeglobe ze-angle, njl. uhlobo lwevalvu yeglobe, ivalvu yeglobe yokugcina ubushushu, ivalvu yeglobe yentsimbi ephosiweyo, ivalvu yeglobe yentsimbi eqinisiweyo; indlela yokukhetha uhlobo ibaluleke kakhulu, kufuneka ikhethwe ngokweempawu zemeko ephakathi, ubushushu, uxinzelelo kunye neemeko zokusebenza. Imithetho ethile yokukhetha yile ilandelayo:

1. Ivalvu yeglobhu ye-pneumatic kufuneka ikhethwe kumbhobho okanye kwisixhobo sobushushu obuphezulu kunye noxinzelelo oluphezulu. Ezifana nemibhobho yobushushu obuphezulu kunye noxinzelelo oluphezulu kwizityalo zamandla obushushu kunye neenkqubo ze-petrochemical;

2. Ivalvu yeglobhu ehamba ngqo kufuneka isetyenziswe kumbhobho apho iimfuno zokumelana noxinzelelo lwe-convection zingangqongqo;

3. Ivalvu yenaliti, ivalvu yesixhobo, ivalvu yesampulu, ivalvu yokulinganisa uxinzelelo, njl. ingasetyenziselwa ivalvu encinci yeglobhu yomoya;

4. Kukho uhlengahlengiso lokuhamba okanye uhlengahlengiso loxinzelelo, kodwa iimfuno zokulungelelanisa ukuchaneka aziphezulu, kwaye ububanzi bombhobho buncinci. Umzekelo, kumbhobho onobubanzi obuqhelekileyo be-≤50mm, kungcono ukusebenzisa ivalvu yokumisa umoya kunye nevalvu yokulawula yombane;

5. Kwisixhobo sokukhanyisa esilula ukusiqinisa, khetha ivalvu yokuvala ubushushu;

6. Kwiindawo ezixineneyo kakhulu, kufuneka kukhethwe iivalvu zeglobhu ezenziwe ngobumba;

7. Izichumisi ezincinci kunye nezichumisi ezinkulu kwimveliso yokwenziwa kwemizi-mveliso kufuneka zikhethe ivalvu yeglobhu ye-angle yoxinzelelo oluphezulu okanye ivalvu ye-angle yoxinzelelo oluphezulu ene-nominal pressure PN160 nominal pressure 16MPa okanye i-PN320 nominal pressure 32MPa;

8. Kwi-workshop yokususa isilicon kunye nemibhobho ethanda ukucolwa kwinkqubo ye-alumina Bayer, kulula ukukhetha ivalvu yeglobe ehamba ngqo okanye ivalvu ye-throttle ehamba ngqo enomzimba wevalvu eyahlukileyo, isihlalo sevalvu esisuswayo, kunye nesibini sokutywina i-carbide esifakwe isamente;

9. Kwiiprojekthi zokubonelela ngamanzi kunye nokufudumeza kulwakhiwo lwasezidolophini, indlela eqhelekileyo incinci, kwaye ivalvu yokuvala umoya, ivalvu yokulinganisela okanye ivalvu yeplunger inokukhethwa, umzekelo, indlela eqhelekileyo ingaphantsi kwe-150mm.

10. Kungcono ukhethe ivalvu yeglobe ye-bellows engeniswe kwamanye amazwe ye-humphunga oshushu kakhulu kunye neendaba ezinobuthi neziyingozi.

11. Kwivalvu yeglobhu ye-acid-base, khetha ivalvu yeglobhu yentsimbi engatyiwayo okanye ivalvu yeglobhu ene-fluorine.