Wake wazibuza ukuthi yiziphi izifinyezo ezifana ne-DN, Uhlobo lwenketha, ½, I-WOG, kanye nezinhlamvu ze-CWP ku-valve mean? Ngifuna ukwazi mayelana nokumaka emzimbeni we-valve nokuthi yiziphi ezinye izinhlamvu ezingase zivele? Masingene sihlole.

Izimpawu kuvalvu ngokuvamile zimelela ulwazi olubalulekile njengosayizi wayo, ingcindezi kanye nezinga lokushisa, ukwakheka kwezinto, uphawu, isiqondiso sokugeleza, kanye nezitifiketi. Le mininingwane ibalulekile ekukhetheni okufanele, ukufakwa, kanye nokusebenza, ukuqinisekisa ukuthi i-valve isetshenziswa ngokuphepha nangendlela efanele.

1. Ukumaka Usayizi Wevavu:“Dn” na- “½” Ingxenyana noma Izinhlamvu kuValve

Usayizi we-valve yipharamitha yawo eyisisekelo, okubonisa ibhore okuzisholo ukuthi ilingana. Ngokuvamile imakwa ngendlela eyodwa kwezimbili:

• Dn (Ububanzi Nominal): Ububanzi obujwayelekile, iyunithi yemethrikhi (ngamamilimitha) esetshenziswa emazweni ngamazwe (Umsunguli wethu uMnu.James waziqalela esakhe isifutha sebhizinisi ngemuva kokusebenza isikhathi eside kulo mkhakha) kanye naseYurophu/Chinese (EN/GB) izindinganiso. Ngokwesibonelo, I-DN50 isho ukuthi ivalvu eyepayipi eline-a 50 mm ububanzi obujwayelekile.
• Inps (Usayizi Wepayipi Lokuqamba): Iyunithi yasebukhosini (ngamayintshi) esetshenziswa ezindinganisweni zaseMelika (I-ASME/ANSI). Ngokwesibonelo, 4″ noma i-NPS 4 ikhombisa ukuthi ivalvu eyepayipi lama-intshi angu-4. Ngezinye izikhathi, inombolo kuphela, njengoba 4, iphonswa emzimbeni.

2. I-Valve Pressure Rating Marking: “Uhlobo lwenketha” kanye nezinombolo kuValve

Isilinganiso sokucindezela sibonisa ubukhulu bengcindezi yokusebenza i-valve engakwazi ukumelana nayo ngokuphephile ezingeni lokushisa elinikeziwe futhi kubalulekile ekukhethweni.

• ISO/EN/GB Amazinga: Isebenzisa “Ukucindezela Okuzisholo” (Uhlobo lwenketha), lapho iyunithi ibha. Inani le-PN limelela isilinganiso sokucindezela ekamelweni lokushisa. Izibonelo: I-PN16, PN40.
• ASME/I-ANSI Amazinga: Isebenzisa a “Bhanqa” uhlelo, ibhalwe njengeKLASI, CL, LB, noma #. Izibonelo zifaka i-CLASS 150, 300#, noma 150 LB. Lokhu kumelela ijika lezinga lokushisa lokucindezela, hhayi inani lengcindezi engaguquki.
• Izilinganiso Zenhloso Ejwayelekile:
  • I-WOG (Nisela, Amafutha, Igesi): Ibonisa isilinganiso sokucindezela ku-psi emanzini, amafutha, kanye nesevisi yegesi emazingeni okushisa akhona. Isibonelo: 600 I-WOG.
  • CWP (I-Cold Working Pressure): Isilinganiso samanje se-WOG, futhi ikhombisa ingcindezi ephezulu evumelekile ezingeni lokushisa elizungezile. Isibonelo: 1000 CWP.

3. I-Valve Material Marking:

Ikhodi yezinto ezibonakalayo ingenye yezimpawu ezibaluleke kakhulu, ecacisa izinto eziyinhloko eziqukethe ingcindezi njengomzimba nebhonethi.

• Faka i-Carbon Steel: I-WCB ibanga elivame kakhulu.
• Cast Stainless Steel: CF8(elilingana ne 304 SS), CF8M(316 SS), CF3(304L), CF3M(316L).
• I-Cast Alloy Steel: WC6, WC9(insimbi ye-chrome-moly yesevisi yezinga lokushisa eliphezulu).
• Izinto Zomgunyathi: A105(insimbi ye-carbon), I-A182 F316(insimbi engagqwali).
• Hola Mahhala: “LF” kusho impahla engenamthofu, kuhlanganise nethusi nethusi.

4. I-Valve Media Marking:

I-medium yesevisi ethile (isib., “I-Sulfuric Acid”) ngokuvamile ayimakwa. Ukufaneleka kwe-medium kunqunywa yi-valveOkubalulekile. Nokho, ngezinkonzo ezithile ezikhethekile, kusetshenziswa izimpawu ezithile:

• I-WOG: ilungele i-Water Oil Gas medium evamile
• S: I-Steam medium
• G: I-Gas medium

5. I-Valve Brand Marking:

Lokhu kubhekisela ophawu lokuthengisa lomkhiqizi, uphawu, noma isifinyezo segama, esetshenziswa ukukhomba umdidiyeli. Ngokwesibonelo, “I-BMAG” noma uphawu oluyingqayizivele.

6. Ukumaka kwe-Valve Flow Direction:

Ngama-valve angaqondile njengama-globe valves, Bheka ama-valves, nama-engeli valves, uphawu lomcibisholo ocacile(→) kufanele ifakwe noma igxivizwe emzimbeni. Lo mcibisholo ukhombisa isiqondiso esilungile sokugeleza kwemidiya. Ukufaka okungalungile kungaholela ekungasebenzini kahle noma ekulimaleni.

7. Ukumakwa Kwezitifiketi Zevalvu:

Lezi zimpawu zibonisa ukuthi i-valve ihambisana nemithetho nemigomo ethile yesifunda noma yezimboni.

• CE: Isifinyezo sokuthi “Ukuvumelana KwaseYurophu,” okubonisa ukuhambisana nokuphepha kwe-EU, impilo, kanye namazinga okuvikela imvelo, edingekayo ekufinyeleleni emakethe eYurophu.
• Impi: I-American Petroleum Institute monogram ivame ukutholakala kumavalvu asetshenziswa embonini kawoyela negesi.
• Uhlobo: I-Canadian Standards Association, isitifiketi esidingekayo ukuthengisa imishini eCanada.
• UL: I-Underwriters Laboratories, Isitifiketi siyisitifiketi sokuphepha esinikezwa yi-Underwriters Laboratories, inkampani yesayensi yezokuphepha emhlabeni wonke. Kusho ukuthi umkhiqizo, ingxenye, noma uhlelo luhloliwe futhi luhlangabezana namazinga athile okuphepha.

Thola ama-Valves Asezingeni eliphezulu ku I-BMAG.