Kedu ihe bụ Bellow Seal Globe Valve: The Ultimate Guide

Ịghọta Bellow Seal Globe Valves

Avalvụ mkpuchi mkpuchi ụwabụ valvụ mechiri emechi pụrụ iche emebere iji kpochapụ ntapu azuokokoosisi na ngwa dị oke egwu. N'adịghị ka valvụ globe juru n'ọnụ nke ọdịnala, ọ na-eji mgbakọ ọla ọla welded na azu azu na valvụ, na-eke akara hermetic. Nhazi a dị mkpa maka ijikwa mgbasa ozi na-egbu egbu, nke na-emebi emebi, ma ọ bụ nke dị elu nke na-adịghị anabata ihe mgbapụ.

Ihe ndị dị mkpa nke Bellow Seal Globe Valves

1. Bellows Mgbakọ

• Ihe:Igwe anaghị agba nchara (SS316/316L), Inconel 625, ma ọ bụ Hastelloy C276
• Nhazi:Multi-ply convolutions (okpukpu 8-12) maka ogologo oge okirikiri 10,000+
• Ọrụ:Na-amakọ/gbatịa n'oge arụ ọrụ valvụ ka ọ na-ejigide iguzosi ike n'ezi ihe

2. Valve Isi

• Ogo nrụgide:Klas 150 ruo klaasị 2500 (ANSI/ASME B16.34)
• Njikọ njedebe:Flanged (RF/RTJ), weld socket, ma ọ bụ buttweld
• Oke okpomọkụ:-196°C ruo 550°C (cryogenic ruo oke okpomọkụ)

3. Stem & Disc

• Mgbakọ stem-disiki adịgboroja adịgboroja maka nhazi
• Elu siri ike (mkpuchi Stelite 6) maka nguzogide abrasion

4. Akara nke abụọ (ndabere)

• Mbukota eserese eserese n'okpuru mgbịrịgba dị ka enweghị nchekwa

Kedu ka Bellow Seal Globe Valve si arụ ọrụ

Nzọụkwụ 1: Mepee Valve

Mgbe wheel aka na-atụgharị na elekere elekere:

• Osisi ahụ na-ebili, na-ebuli diski ahụ site na oche
• Bellows na-akpakọ axially, na-ejigide iguzosi ike n'ezi ihe

Nzọụkwụ 2: Mechie Valve

Ntugharị n'aka elekere:

• Stem na-amanye diski megide oche, na-akwụsị eruba
• Bellows na-agbatị ruo ogologo nke mbụ

Nzọụkwụ 3: Mgbochi ntapu

Omume akara okpukpu abụọ:

• Akara nke izizi: Bellows na-egbochi ụzọ ntapu azuokokoosisi
• Akara nke abụọ: Mbukota eserese (API 622 kwadoro)

Uru Karịrị Standard Globe Valves

Ngwa ụlọ ọrụ mmepụta ihe

1. Nhazi kemịkalụ

• Osisi chlor-alkali (ihe nwere gas chlorine)
• Mmepụta API ọgwụ

2. Mmanụ & gas

• HF alkylation nkeji
• Nfefe cryogenic LNG (-162°C)

3. Ike Ọgbọ

• Mwepu mmiri esi mmiri ọkụ
• Sistemụ ikuku turbine Steam

Nhọrọ nhọrọ

1. Bellows Ụdị

• Bellows adịgboroja:Nnukwu nrụgide (ASME Klas 1500+)
• Bellows welded:Mgbasa mgbasa ozi na-emebi emebi (electropolished finish)

2. Njirimara na-asọ asọ

• Pasent hà nhata vs. linear eruba maka ngwa njikwa

3. Asambodo

• NACE MR0175 maka ọrụ utoojoo
• PED 2014/68/EU maka ahịa Europe

Ndị nrụpụta China Bellow Valve kacha elu

Ndị na-emepụta China dị ka NSW Valve Manufacturer na-enye:

• API 602/BS 1873 nkwekọ
• 30% ego echekwabara vs. European ụdị
• Nnwale bellow omenala (nchọpụta leak helium)

Nlekọta kacha mma

• Nyocha bell kwa afọ maka mgbawa ike ọgwụgwụ
• Stem lubrication na elu-okpomọkụ griiz
• Zenarị oke ike (max 50 Nm maka valvụ DN50)