Soft Sealing Flange Double Eccentric Butterfly Valve (Dry Shaft Type)

Kabaldugan ning produktu

Key Structural Features

1. Doble Eccentric a Disenyu
   • Mumunang Eccentricity: Ingbalbulaing shaft maka offset ya keng libutad ning disc, babawasan na ing friction kabang magbukas/magsara ya ampo babawasan na ing wear kareng sealing surfaces.
   • Kaduang Eccentricity: Ing shaft mas makarayu ya keng pipeline centerline, gagawang "wedging effect" na magpasanting keng pamag-seal kabang magsara ya ing disc.
   • Pakinabang: Mamye yang masanting a pamag-seal at makaba ing bie ning serbisyu kumpara kareng single-eccentric o concentric a disenyu.
2. Soft Sealing Mechanism
   • Ing balbula gagamit yang malambut a sealing ring (keraklan gawa keng EPDM, NBR, o PTFE) a maka-embed keng katawan o disc ning balbula, para makasiguradung airtight closure ampo compatibility kareng miyayaliwang media (alimbawa, danum, langis, gas, ampo non-abrasive fluids).
   • Advantage: Mababa ing leakage rates (meeting API 598 o ISO 15848 standards) ampo minimal a torque a kailangan para keng operasyun.
3. Dry Shaft Construction
   • Ing shaft makasara ya keng media flow, para e na akit ing fluid. Ing disenyu ayni lalako nala deng posibling leakage paths keng shaft ampo babawasan na ing corrosion risks, lalu na keng agresibong kapaligiran.
   • Key Component: Matas a kalidad a stem seals (alimbawa, V-type packing o mechanical seals) makasiguradung alang leakage keng shaft.
4. Flange Connection
   • Dinisenyu ya kareng standard a flange interfaces (eg, ANSI, DIN, JIS) para keng madaling pamag-install kareng pipeline. Ing flanged a disenyu mamye yang katatagan keng istruktura ampo magpasimple keng pamag-maintain.

Prinsipyu ning Pamagobra

• Pamuklat: Kabang mag-ikot ya ing baras, ingdouble-eccentricing disc kikimut ya ibat keng makasaradung posisyun, bagya-bagya yang makalako keng malambut a seal. Deng eccentric offsets babawasan da ing mumunang contact stress, gagawang masalese, mababang torque ing operasyun.
• Pamagsara: Ing disc mibabalik ya pabalik, at ing double-eccentric geometry gagawang progresibong sealing action. Ing wedging effect daragdagan na ing contact pressure pilatan ning disc ampo ing seal, para siguraduan ing masipit a pamagsara.
• Tandanan: Ing dry shaft design sisiguraduan na ing shaft e ya apektadu keng media temperature, pressure, o corrosiveness, a magpasanting keng kabilugan a reliability.

Technical Specifications

• Pamaglinis king Danum: Inuman a danum, wastewater, ampo sewage systems (mangailangan yang matas a sealing para keng hygienic standards).
• Chemical Industry: Corrosive fluids, acids, ampo alkalis (ing dry shaft protektan ne ing chemical attack).
• HVAC Systems: Air conditioning ampo heating pipelines (mababa torque para keng maralas a operasyun).
• Petrochemical & Oil/Gas: Non-abrasive media kalupa ning oil, gas, ampo solvents (mapanalig a pamagsara kareng kritikal a prosesu).
• Pamangan & Inuman: Sanitary applications (FDA-compliant seals siguraduan ing kaligtasan ning produktu).

• bentahe kareng tradisyunal a balbula

  • Superior Sealing: Deng malambut a seal makalako la keng leakage, masanting para kareng aplikasyun na mangailangan proteksyun keng kapaligiran o matas a kalinisan.
  • Energy Efficiency: Ing mababang torque a operasyun babawasan na ing pamangailangan king actuation power, babawasan na ing gastus king operasyun.
  • Makaba: Ing double-eccentric a disenyu babawasan na ing pangasira, kabang ing dry shaft protektan ne ing corrosion, a magpalwal king bie ning serbisyu.
  • Makatipid keng espasyu: Compact a istruktura kumpara kareng gate o globe valves, masanting para kareng limitadu a espasyu.

  Tips keng pamag-maintain ampo pamag-install

  • Pamag-install: Siguraduan mung maka-align la reng flanges ampo deng bolts pare-pareu lang maka-tighten para aiwasan ing stress keng valve body.
  • Maintenance: Regular meng inspeksyunan ing soft seal para keng wear at palitan nung masira ya. Lubricate me ing shaft ampo ing actuator pana-panaun para siguraduan ing masaleseng operasyun.
  • Pamibili: Ibili keng tuyu, alang alikabuk a kapaligiran a ing balbula makabuklat yang bagya para mabawas ing stress keng seal.
  Ing balbula ayni sasamut ne ing advanced engineering ampo ing praktikal a disenyu, mamye yang mapanalig ampo epektibung solusyun para kareng modernung industrial flow control a pamangailangan. Para keng partikular a pamag-customize (alimbawa, pamag-upgrade keng materyales o espesyal a coatings), pakisabi me ing manufacturer.