Ọ dịtụla mgbe ị na-eche ihe ndebiri dị ka DN, P:, ½, WOG, na mkpụrụedemede CWP na valvụ pụtara? Na-achọ ịmata ihe nrịbama dị na ahụ valve na ihe mkpụrụedemede ndị ọzọ nwere ike ịpụta? Ka anyị banye na nyocha.

Akara valvụ na-anọchi anya ozi dị oke mkpa dịka nha ya, ọkwa nrụgide na okpomọkụ, ihe mejupụtara, ika, uzo uzo, na asambodo. Nkọwa ndị a dị mkpa na nhọrọ kwesịrị ekwesị, echichi, na ọrụ, hụ na ejiri valvụ ahụ mee ihe n'enweghị nsogbu na nke ọma.

1. Nha akara Valve:“Nku” na “½” Iberibe ma ọ bụ akwụkwọ ozi na Valve

Ogo valvụ ahụ bụ oke ya kacha mkpa, na-egosi ọnụ ala ọkpọkọ ọ dabara. A na-akara ya akara n'otu n'ime ụzọ abụọ:

• Nku (Ọnụ ala dayameta): Dayameta aha aha, otu metric (na millimeters) eji na mba ụwa (Iso) na European / Chinese (EN/GB) ụkpụrụ. Ọmụmaatụ, DN50 pụtara valvụ bụ maka ọkpọkọ nwere a 50 mm ọnụ ala dayameta.
• Nps (Nha ọkpọkọ ọnụ): Otu alaeze ukwu (na sentimita asatọ) eji na ụkpụrụ America (ASME/ANSI). Ọmụmaatụ, 4″ ma ọ bụ NPS 4 na-egosi valve bụ maka ọkpọkọ 4-inch. Mgbeufodu, naanị nọmba, dị ka 4, a na-atụba n'ahụ.

2. Ịrịba ọkwa nrụgide Valve: “P:” na Ọnụ Ọgụgụ na Valve

Ogo nrụgide na-egosi oke nrụgide ọrụ nke valvụ nwere ike iguzogide n'enweghị nsogbu na okpomọkụ enyere ma dị oke mkpa maka nhọrọ.

• Ụkpụrụ ISO/EN/GB: Na-eji “Nrụgide aha” (P:), ebe unit bụ mmanya. Uru PN na-anọchi anya ọkwa nrụgide na okpomọkụ ụlọ. Ihe omuma: PN16, PN40.
• ASME/ANSI Ụkpụrụ: Na-eji a “Udi” usoro, edere ka CLASS, CL, LB, ma ọ bụ #. Ọmụmaatụ gụnyere CLASS 150, 300#, ma ọ bụ 150 LB. Nke a na-anọchi anya mgbagharị nrụgide-okpomọkụ, ọ bụghị uru nrụgide mgbe niile.
• Ntụle ebumnuche izugbe:
  • WOG (Mmiri, Ite mmanu, Gaasi): Na-egosi ọkwa nrụgide na psi maka mmiri, ite mmanu, na ọrụ gas na ọnọdụ okpomọkụ. Ọmụmaatụ: 600 WOG.
  • CWP (Nrụgide arụ ọrụ oyi): Ihe nke oge a nke WOG, na-egosikwa nrụgide kacha ekwe omume na ọnọdụ okpomọkụ. Ọmụmaatụ: 1000 CWP.

3. Ihe nrịbama Valve:

Koodu akụrụngwa bụ otu n'ime akara kacha mkpa, ịkọwapụta ihe nke isi nrụgide-nwere akụkụ dị ka ahụ na bonnet.

• Ihe nkedo Carbon Steel: WCB bụ klaasị kachasị.
• Nkedo igwe anaghị agba nchara: CF8(ya na 304 SS), CF8M(316 SS), CF3(304L), CF3M(316L).
• Ihe nkedo Alloy Steel: WC6, WC9(chrome-moly ígwè maka ọrụ okpomọkụ dị elu).
• Akụrụngwa ejirila: A105(carbon ígwè), A182 F316(igwe anaghị agba nchara).
• Ndu efu: “LF” pụtara ihe na-enweghị ndu, gụnyere ọla na ọla.

4. Valve Media Marking:

The kpọmkwem ọrụ ọkara (E.G., “Sulfuric acid”) na-adịkarịghị akara. A na-ekpebi ịdị mma maka ọkara site na valvụIhe onwunwe. Agbanyeghị, maka ụfọdụ ọrụ pụrụ iche, A na-eji akara akara akọwapụtara:

• WOG: adabara nkịtị Water Oil Gas ọkara
• S: Igwe ọkụ ọkụ
• G: Ọkara gas

5. Akara akara Valve:

Nke a na-ezo aka na ụghalaahia nke onye nrụpụta, akara ngosi, ma ọ bụ ndebiri aha, eji achọpụta onye na-emepụta ihe. Ọmụmaatụ, “Bmag” ma ọ bụ akara pụrụ iche.

6. Ngosipụta ụzọ ntụgharị Valve:

Maka valvụ unidirectional dị ka valvụ globe, ịlele valvụ, na valvụ akụkụ, akara akụ doro anya(→) a ga-awụpụ ma ọ bụ tinye akara na ahụ. Ụka a na-egosi ụzọ ziri ezi nke usoro mgbasa ozi. Nrụnye na-ezighi ezi nwere ike ibute mmebi ma ọ bụ mmebi.

7. Asambodo Valve Marking:

Akara akara ndị a na-egosi na valvụ ahụ na-akwado ụkpụrụ na ụkpụrụ mpaghara ma ọ bụ ụlọ ọrụ.

• Senti: Mbiri maka “Nkwekọrịta Europe,” na-egosi nnabata na nchekwa EU, ahụike, na ụkpụrụ nchekwa gburugburu ebe obibi, achọrọ maka ịnweta ahịa na Europe.
• Api: A na-ahụkarị monogram nke American Petroleum Institute na valvụ ejiri na ụlọ ọrụ mmanụ na gas.
• CSA: Ndị otu ụkpụrụ Canada, asambodo achọrọ iji ree akụrụngwa na Canada.
• Ulii: Underwriters Laboratories, asambodo bụ asambodo nchekwa nke Underwriters Laboratories nyere, ụlọ ọrụ sayensị nchekwa nchekwa zuru ụwa ọnụ. Ọ na-egosi na ngwaahịa, akụrụngwa, ma ọ bụ sistemu a nwalere wee zute ụkpụrụ nchekwa akọwapụtara.

Chọta Valves kacha mma na Bmag.