I-valve yesango le-Hydraulic wedge DN400 PN25

1. Incazelo kanye nezici ezibalulekile

I-Hydraulic Wedge Gate Valve iyi-valve enyakazayo ewumugqa lapho idiski (isango) emise okwe-wedge iphakanyiswa noma yehliswe nge-actuator engama-hydraulic ukuze kulawulwe ukugeleza koketshezi.

Izici ezibalulekile zalo sayizi neklasi:

• I-Full Bore Design: I-diameter yangaphakathi ifana nepayipi (DN400), okuholela ekwehleni kwengcindezi ephansi kakhulu lapho ivuleke ngokugcwele futhi ivumela ukugetshengwa kwamapayipi.
• Ukugeleza kwe-Bidirectional: Ifanele ukugeleza kunoma iyiphi indlela.
• Isiqu Esikhuphukayo: Isiqu siyakhuphuka njengoba kuvulwa ivalvu, sinikeza inkomba ecacile yokubuka indawo yevalvu.
• Ukuvalwa kwe-Metal-to-Metal: Ivamise ukusebenzisa i-wedge kanye namaringi esihlalo anobuso obunzima (isb., nge-Stellite) ukuguguleka nokungagugi.
• Ukwakhiwa Okuqinile: Kuklanyelwe ukuphatha izingcindezi eziphezulu namandla, okuholela kumzimba osindayo noqinile, ngokuvamile ovela kunsimbi noma insimbi efojiwe.

2. Izingxenye Eziyinhloko

1. Umzimba: Isakhiwo esikhulu esiqukethe ingcindezi, ngokuvamile esenziwe nge-Carbon Steel (WCB) noma iStainless Steel (CF8M/316SS). Iziphetho ezinamaphiko (isb, i-PN25/ASME B16.5 Ikilasi 150) zijwayelekile ku-DN400.
2. Ibhonethi: Iboshiwe emzimbeni, igcina isiqu futhi inikeza umngcele wengcindezi. Ngokuvamile ibhonethi enwetshiwe isetshenziselwa izinhloso zokuhlanganisa.
3. I-Wedge (Isango): Ingxenye yokhiye yokuvala. Ku-PN25, i-Flexible Wedge ijwayelekile. Inokusikwa noma i-groove ezungeze umjikelezo wayo ovumela inkaba ukuthi igobe kancane, ithuthukise ukuvala futhi inxephezele izinguquko ezincane ekumisweni kwesihlalo ngenxa yokwanda okushisayo noma ukucindezelwa kwamapayipi.
4. Isiqu: I-shaft enentambo enamandla aphezulu (isb., i-SS420 noma i-17-4PH Stainless Steel) edlulisela amandla ukusuka ku-actuator kuya kumaweji.
5. Izindandatho Zesihlalo: Izindandatho ezinobuso obuqinile zicindezelwe noma zishiselwe emzimbeni lapho inkaba ivala khona. Bakha ukuvala okuqinile.
6. Ukupakisha: Uphawu (ngokuvamile igraphite yamazinga okushisa aphezulu) ezungeze isiqu, equkethwe ebhokisini lokugxusha, ukuvimbela ukuvuza endaweni.
7. I-Hydraulic Actuator: I-actuator yesitayela se-piston noma i-scotch yoke enikwa amandla yi-hydraulic pressure (imvamisa uwoyela). Ihlinzeka nge-torque/thrust ephezulu edingekayo ukuze usebenzise i-valve enkulu ye-DN400 ngokumelene nokucindezela okuphezulu okuhlukile.

3. Isimiso Sokusebenza

• Ukuvula: Uketshezi lwe-hydraulic lufakwa ku-actuator, lunyakazisa ipiston. Lokhu kunyakaza kuguqulwa kube yi-rotary (ijoka le-scotch) noma ukunyakaza okuqondile (i-piston eqondile) ezungeza isiqu se-valve. Isiqu singena emkhawulweni, siwuphakamise ngokuphelele kubhonethi, singavimbi indlela yokugeleza.
• Ukuvala: I-hydraulic fluid ifakwe ngakolunye uhlangothi lwe-actuator, ihlehlisa ukunyakaza. Isiqu siyazungeza futhi siphushele inkaba yehle endaweni evaliwe, lapho icindezelwa khona ngokuqinile emasongweni ezihlalo ezimbili, okwenza uphawu.

Inothi Elibalulekile: Le valve yakhelwe ukuba yodwa (ivuleke ngokugcwele noma ivalwe ngokugcwele). Akufanele neze isetshenziselwe ukulawula ukuncibilika noma ukugeleza, njengoba lokhu kuzodala ukudlidliza, i-cavitation, nokuguguleka okusheshayo komphetho nezihlalo.

4. Izicelo Ezijwayelekile

Ngenxa yobukhulu bayo nesilinganiso sokucindezela, le valve isetshenziswa ekufuneni izicelo zezimboni:

• Amapayipi Ahambisa Amanzi Nokusabalalisa: Ukuhlukanisa izingxenye zamapayipi amakhulu.
• Izitshalo Zamandla: Amasistimu amanzi okupholisa, imigqa yamanzi okuphakelayo.
• Amanzi Enqubo Yezimboni: Izitshalo zezimboni ezinkulu.
• Izitshalo Zokukhipha Usawoti emanzini: Imigqa ye-High-pressure reverse osmosis (RO).
• Ukucutshungulwa Kwezimayini Nezimbiwa: Amapayipi anodaka (anokukhetha okufanelekile).

5. Izinzuzo kanye Nokubi

6. Ukucatshangelwa Okubalulekile Kokukhetha Nokusetshenziswa

• Ukukhethwa Kwezinto: Qondanisa umzimba/wedge/isihlalo (WCB, WC6, CF8M, njll.) nesevisi yoketshezi (amanzi, ukubola, izinga lokushisa).
• Qeda Ukuxhumeka: Qinisekisa ukuthi izindinganiso ze-flange nokubhekeka kwayo (RF, RTJ) kufana nepayipi.
• I-Hydraulic Power Unit (HPU): Ivalvu idinga i-HPU ehlukile ukuze ikhiqize umfutho we-hydraulic. Cabangela isivinini sokusebenza esidingekayo, ingcindezi, nokulawula (kwendawo/okukude).
• I-Fail-Safe Mode: I-actuator ingacaciswa njenge-Fail-Open (FO), Fail-Closed (FC), noma I-Fail-in-Last-Position (FL) kuye ngezimfuneko zokuphepha.
• Ivaluvu ye-by-Pass: Kuzinhlelo zokusebenza ezinomfutho ophezulu, i-valve encane yokudlula (isb, i-DN50) ivamise ukufakwa ukuze kulinganiswe ingcindezi kuwo wonke umphetho ngaphambi kokuvula i-valve eyinhloko, ukunciphisa i-torque edingekayo.

Kafushane, i-Hydraulic Wedge Gate Valve DN400 PN25 iyihhashi elisebenza kahle kakhulu, elinomthwalo osindayo wokumisa ngokuphelele noma ukuqalisa ukugeleza kwamanzi kumapayipi amakhulu, anengcindezi ephezulu. Ukusebenza kwayo kwe-hydraulic kuyenza ifanele izindawo zokuzihlukanisa ezikude noma ezizenzakalelayo.