Dab tsi yog Bellow Seal Globe Valve: Phau Ntawv Qhia Kawg

Nkag Siab Txog Bellow Seal Globe Valves

Iblub valve globe foobyog lub qhov dej kaw tshwj xeeb uas tsim los tshem tawm cov kav dej xau hauv cov ntawv thov tseem ceeb. Tsis zoo li cov qhov dej ntim khoom ib txwm muaj, nws siv cov hlau sib dhos vuam rau ob qho tib si lub kav dej thiab lub cev lub qhov dej, tsim kom muaj lub foob hermetic. Tus qauv tsim no yog qhov tseem ceeb rau kev tswj hwm cov tshuaj lom, corrosive, lossis cov xov xwm huv siab uas cov pa tawm tsis tuaj yeem lees txais.

Cov Cheebtsam Tseem Ceeb ntawm Bellow Seal Globe Valves

1. Lub Rooj Sib Tham Bellows

• Khoom siv:Hlau tsis xeb (SS316/316L), Inconel 625, lossis Hastelloy C276
• Tsim:Cov txheej txheem sib xyaw ua ke ntau txheej (8-12 txheej) rau 10,000+ lub voj voog ua haujlwm tau ntev
• Kev Ua Haujlwm:Nqus / nthuav dav thaum lub sijhawm ua haujlwm valve thaum tswj kev ruaj khov ntawm lub foob

2. Lub cev valve

• Kev Ntsuas Siab:Chav Kawm 150 txog Chav Kawm 2500 (ANSI/ASME B16.34)
• Xaus Kev Sib Txuas:Flanged (RF/RTJ), qhov (socket) vuam, los yog buttweld
• Kub Ntau:-196 ° C txog 550 ° C (cryogenic mus rau high-heat)

3. Qia & Disc

• Kev sib dhos ua ke ntawm cov qia-disc rau kev sib dhos
• Kev ua kom tawv ntawm qhov chaw (Stellite 6 txheej) rau kev tiv thaiv kev sib txhuam

4. Lub foob thib ob (Thaub qab)

• Cov nplhaib ntim khoom graphite hauv qab lub bellows ua kom tsis txhob muaj kev phom sij

Lub Bellow Seal Globe Valve Ua Haujlwm Li Cas

Kauj Ruam 1: Qhib Lub Valve

Thaum lub log tes tig counterclockwise:

• Lub qia nce, tsa lub disc ntawm lub rooj zaum
• Cov bellows compress axially, tswj kev ruaj khov ntawm lub foob

Kauj Ruam 2: Kaw Lub Valve

Tig mus rau sab xis:

• Lub qia ua rau lub disc tawm tsam lub rooj zaum, ua rau tsis ntws
• Cov bellows txuas mus rau qhov ntev qub

Kauj Ruam 3: Kev Tiv Thaiv Kev Xaus Dej

Ob chav sealing kev ua haujlwm:

• Lub foob tseem ceeb: Bellows thaiv txoj kev xau dej ntawm lub qia
• Lub foob thib ob: Graphite packing (API 622 ua raws li)

Cov Zoo Dua Li Cov Qauv Globe Valves

Cov Ntawv Thov Kev Lag Luam

1. Kev Ua Tshuaj Lom Zem

• Cov nroj tsuag chlor-alkali (kev tswj cov pa chlorine)
• Kev tsim tshuaj API

2. Roj thiab Roj Av

• Cov chav alkylation HF
• Kev hloov pauv LNG cryogenic (-162 ° C)

3. Kev Tsim Hluav Taws Xob

• Kev rho tawm dej pub rau hauv lub boiler
• Cov txheej txheem bypass turbine chav

Cov Qauv Xaiv

1. Hom Bellows

• Forged Bellows:Siab siab (ASME Chav Kawm 1500+)
• Cov Bellows Welded:Cov khoom siv corrosive (electropolished tiav)

2. Cov yam ntxwv ntawm kev ntws

• Feem pua ​​sib npaug piv rau cov dej ntws ncaj rau kev tswj hwm

3. Cov Ntawv Pov Thawj

• NACE MR0175 rau kev pabcuam qaub
• PED 2014/68/EU rau cov lag luam European

Tuam Tshoj Sab Saum Toj Bellow Valve Manufacturers

Cov chaw tsim khoom hauv Suav teb xws li NSW Valve Chaw Tsim Khoom muab:

• Cov qauv tsim ua raws li API 602/BS 1873
• Txuag tau 30% piv rau cov hom lag luam European
• Kev kuaj xyuas lub bellows (kev kuaj pom helium xau)

Cov Kev Xyaum Zoo Tshaj Plaws rau Kev Txij Nkawm

• Kev tshuaj xyuas txhua xyoo rau cov kab nrib pleb qaug zog
• Lubrication ntawm cov kav dej nrog cov roj kub siab
• Tsis txhob siv zog ntau dhau (siab tshaj 50 Nm rau DN50 li qub)