Ke eng Bellow Seal Globe Valve: The Ultimate Guide

Ho utloisisa Bellow Seal Globe Valves

Abellow seal globe valveke valve e khethehileng ea ho koala e etselitsoeng ho felisa ho lutla ha stem lits'ebetsong tsa bohlokoa. Ho fapana le li-valve tsa khale tse pakiloeng, e sebelisa kopano ea tšepe ea tšepe e cheselitsoeng ho 'mele oa kutu le oa li-valve, e theha tiiso ea hermetic. Moralo ona o bohlokoa bakeng sa ho sebetsana le mecha ea litaba e chefo, e senyang, kapa e hloekileng haholo moo ho sa amoheleheng ho tsoa ha batho ba balehang.

Likarolo tsa Bohlokoa tsa Bellow Seal Globe Valves

1. Seboka sa Bellows

• Boitsebiso:Tšepe e sa hloekang (SS316/316L), Inconel 625, kapa Hastelloy C276
• Moralo:Multi-ply convolutions (8-12 layers) bakeng sa 10,000+ durability cycle
• Mosebetsi:E hatella / e atoloha nakong ea ts'ebetso ea valve ha e ntse e boloka botšepehi ba tiiso

2. 'Mele oa Valve

• Boemo ba Khatello:Sehlopha sa 150 ho ea ho Sehlopha sa 2500 (ANSI/ASME B16.34)
• Qetella likhokahano:Flanged (RF/RTJ), socket weld, kapa buttweld
• Nako ea Nako:-196°C ho isa ho 550°C (cryogenic ho isa mochesong o phahameng)

3. Stem & Disc

• Kopano e kopaneng ea li-stem-disc bakeng sa ho tsamaisana
• Ho thatafala ha sefahleho (Stellite 6 coating) bakeng sa khanyetso ea abrasion

4. Setiiso sa Bobeli (bekapo)

• Li-ring tsa graphite tse ka tlase ho melumo e joalo ha li sireletsehe

Bellow Seal Globe Valve e Sebetsa Joang?

Mohato oa 1: Ho bula Valve

Ha lebili la letsoho le fetotsoe ka tsela e fapaneng le oache:

• The stem e phahama, e phahamisa disc ho tloha setulong
• Bellows compress axially, ho boloka botšepehi ba tiiso

Mohato oa 2: Ho koala Valve

Ho potoloha ha nako:

• Stem e qobella disc khahlano le setulo, e emisa ho phalla
• Li-Bellows li fetela ho bolelele ba pele

Mohato oa 3: Thibelo ea ho Lutla

Ketso ea ho tiisa habeli:

• Tiiso ea mantlha: Tsela ea ho lutla ha stem ea Bellows
• Tiiso ea bobeli: Pakete ea Graphite (e lumellana le API 622)

Melemo Ho Feta Li-Valves tse Tloaelehileng tsa Globe

Lisebelisoa tsa indasteri

1. Tšebeliso ea Lik'hemik'hale

• Limela tsa Chlor-alkali (sekontiri sa khase ea chlorine)
• Tlhahiso ea Pharmaceutical API

2. Oli le Khase

• HF alkylation diyuniti
• Phetisetso ea LNG ea cryogenic (-162°C)

3. Pheliso ea Matla

• Ho aroloa ha metsi a phepelo ea boiler
• Sistimi ea ho feta ea turbine ea mouoane

Lintlha tsa Khetho

1. Mofuta oa Bellows

• Melaetsa e Fepisitsoeng:Khatello e phahameng (ASME Class 1500+)
• Welded Bellows:Mecha ea litaba e senyang (phello e entsoeng ka motlakase)

2. Litšobotsi tsa Phallo

• Peresente e lekanang vs. linear flow bakeng sa lits'ebetso tsa taolo

3. Litifikeiti

• NACE MR0175 bakeng sa tšebeletso e bolila
• PED 2014/68/EU bakeng sa limmaraka tsa Europe

Top China Bellow Valve Manufacturers

Baetsi ba Machaena ba joalo ka Moetsi oa Valve oa NSW ba fana ka:

• API 602/BS 1873 meralo e lumellanang
• 30% ea ho boloka litšenyehelo khahlano le mefuta ea Europe
• Teko e tloahelehileng ea mouoane (ho lemoha ho lutla ha helium)

Tlhokomelo Mekhoa e Molemo ka ho Fetisisa

• Tlhahlobo ea selemo le selemo bakeng sa mapetsong a mokhathala
• Ho tlotsoa ha stem ka mafura a mocheso o phahameng
• Qoba ho toquing ho feta tekano (max 50 Nm bakeng sa li-valve tsa DN50)